This page lists 140 engine parts for the 2018 Audi A3, across 53 part types, covering all 4 engine options (1.4L L4 ELECTRIC/GAS Turbocharged, 1.4L L4 Turbocharged, 1.8L L4 Turbocharged and 2.0L L4 Turbocharged). Every part shows its brand, manufacturer part number and fitment notes.
The engine on the 2018 Audi A3 covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components. The largest groups are Crankshaft Seal (8 parts), Valve Cover Gasket (8 parts) and Cylinder Head Gasket (7 parts). The other 50 part types cover the remaining 117 parts.
The 2018 Audi A3 was sold with 4 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
25 brands supply engine parts for the 2018 Audi A3, led by ELRING (75 parts), AJUSA (14 parts) and ÜRO PARTS (12 parts), plus 22 more brands. Quality grades include Economy, Standard Replacement and High Performance / Heavy Duty.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2018 Audi A3. 11 parts have it, including ELRING 248300 (Crankshaft Seal) and ELRING 008040 (Cylinder Head Gasket). Each part number opens a page with every vehicle that part fits.
Camshaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 1.8L L4 Turbocharged | 242650 | 🇲🇽 MX | Dust Cover: with dust LipHeight [MM]: 7 | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 897690 | 🇲🇽 MX | Dust Cover: without dust LipMaterial: PTFE (polytetrafluoroethylene)/ACM (polyacrylate rubber) | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 523650 | 🇲🇽 MX | Material: PTFE (polytetrafluoroethylene)/ACM (polyacrylate rubber)Swirl Type: Left-hand Twist | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 814110 | 🇲🇽 MX | Material: FPM (Fluoride Rubber) | View on Amazon |
This table covers the seals at each camshaft end. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
4 Camshaft Seal parts for the 2018 Audi A3 come from ELRING.
This group includes ELRING 242650, ELRING 897690 and ELRING 523650 and the remaining parts above.
Circular / Semi-Circular Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 1.8L L4 Turbocharged | 391020 | 🇲🇽 MX | Outer Diameter [MM]: 32 | View on Amazon |
This table covers the Circular / Semi-Circular plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes.
This group shows a single part: ELRING 391020.
Connecting Rod Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 1.8L L4 Turbocharged | 038970 | 🇲🇽 MX | Bolt Head-/Nut Design: Male TorxThread Size: M9X1X50 | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 039000 | 🇲🇽 MX | Bolt Head-/Nut Design: Male TorxThread Size: M8X1X44 | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 038820 | 🇲🇽 MX | Bolt Head-/Nut Design: Male Star | View on Amazon |
This table covers the Connecting Rod bolts.
3 Connecting Rod Bolt parts for the 2018 Audi A3 come from ELRING.
This group includes ELRING 038970, ELRING 039000 and ELRING 038820.
Conversion / Lower Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 1.8L L4 Turbocharged | 54258600 | 🇲🇽 MX | Engine # CJSA, CJSB, CNSB | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 798670 | 🇲🇽 MX | Attraction | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 452990 | 🇲🇽 MX | with Crankshaft Seal | View on Amazon |
This table covers lower / conversion gasket sets for oil-pan and related joints. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration.
3 Conversion / Lower Gasket Set parts are listed for the 2018 Audi A3, from ELRING and AJUSA.
Listed part numbers: AJUSA 54258600, ELRING 798670 and ELRING 452990.
Crankshaft Main Bearing Cap Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 1.8L L4 Turbocharged | 206350 | 🇲🇽 MX | Thread Size: M10X80 | View on Amazon |
This table covers the Crankshaft Main Bearing Cap bolts.
One part is listed for the 2018 Audi A3 — ELRING 206350.
Crankshaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Popular Fits: 1.8L L4 Turbocharged | 248300 | 🇲🇽 MX | Height [MM]: 8Material: PTFE (polytetrafluoroethylene)/ACM (polyacrylate rubber) | View on Amazon |
| ELRING Popular Fits: 1.8L L4 Turbocharged | 798660 | 🇲🇽 MX | Material: PTFE (polytetrafluoroethylene)/ACM (polyacrylate rubber)Radial Shaft Seal Design: SP | View on Amazon |
| AJUSA Fits: 1.8L L4 Turbocharged | 71007200 | 🇲🇽 MX | RearEngine CJSA,CJSB,CNSB | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 248270 | 🇲🇽 MX | Material: PTFE (polytetrafluoroethylene)Radial Shaft Seal Design: ASW | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 340290 | 🇲🇽 MX | Material: PTFE (polytetrafluoroethylene)Radial Shaft Seal Design: SP | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 340280 | 🇲🇽 MX | with Mounting SleeveMaterial: PTFE (polytetrafluoroethylene) | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 523120 | 🇲🇽 MX | Material: PTFE (polytetrafluoroethylene)/ACM (polyacrylate rubber)Radial Shaft Seal Design: IWD | View on Amazon |
| VICTOR REINZ Fits: 1.8L L4 Turbocharged | 814273700 | 🇲🇽 MX | FrontReplaces OE Part Number(s) 06L 103 085 B | View on Amazon |
This table covers the front and rear seals that keep oil in at the crankshaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
8 Crankshaft Seal parts for the 2018 Audi A3 come from 3 brands — ELRING, AJUSA and VICTOR REINZ. The "Popular" part is ELRING 248300.
This group includes ELRING 248300, ELRING 798660 and AJUSA 71007200 and the remaining parts above.
Crankshaft Seal Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 1.8L L4 Turbocharged | 092360 | 🇲🇽 MX | Attraction | View on Amazon |
This table covers the gaskets that seal the Crankshaft Seal. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
One part is listed for the 2018 Audi A3 — ELRING 092360.
Cylinder Head Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 1.8L L4 Turbocharged | 81054400 | 🇲🇽 MX | Engine # CJSA,CJSB,CNSB | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 323300 | 🇲🇽 MX | SetBolt Head-/Nut Design: Female Star | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 445910 | 🇲🇽 MX | SetBolt Head-/Nut Design: Female Star | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 351900 | 🇲🇽 MX | SetBolt Head-/Nut Design: Female Star | View on Amazon |
This table covers the bolts that clamp the cylinder head to the block.
4 Cylinder Head Bolt parts are listed for the 2018 Audi A3, from ELRING and AJUSA.
This group includes AJUSA 81054400, ELRING 323300 and ELRING 445910 and the remaining parts above.
Cylinder Head Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Popular Fits: 1.8L L4 Turbocharged | 008040 | 🇲🇽 MX | Diameter [MM]: 83,3Installed Thickness [MM]: 0,9 | View on Amazon |
| VICTOR REINZ Popular Fits: 1.8L L4 Turbocharged | 614216500 | 🇲🇽 MX | Replaces OE Part Number(s) 06K103383K | View on Amazon |
| AJUSA Fits: 1.8L L4 Turbocharged | 10202800 | 🇲🇽 MX | Multi Layered Steel | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 523821 | 🇲🇽 MX | Diameter [MM]: 76,5Gasket Design: Multilayer Steel (MLS) | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 718051 | 🇲🇽 MX | Attraction | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 718061 | 🇲🇽 MX | Attraction | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 718071 | 🇲🇽 MX | Attraction | View on Amazon |
This table covers the head gaskets that seal the block to the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
7 Cylinder Head Gasket parts are listed for the 2018 Audi A3, from ELRING, VICTOR REINZ and AJUSA. ELRING 008040 carries the "Popular" badge.
Part numbers include ELRING 008040, VICTOR REINZ 614216500 and AJUSA 10202800, among others listed above.
Cylinder Head Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 1.8L L4 Turbocharged | 52360600 | 🇲🇽 MX | Engine # CJSA, CJSB, CNSB | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 313201 | 🇲🇽 MX | Includes Valve Stem SealsInstalled Thickness [MM]: 0,9 | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 576280 | 🇲🇽 MX | without Cylinder Head Gasketwith valve stem seals | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 877090 | 🇲🇽 MX | Includes Valve Stem SealsInstalled Thickness [MM]: 0,72 | View on Amazon |
This table covers multi-piece gasket sets for a cylinder-head job. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration.
4 Cylinder Head Gasket Set parts are listed for the 2018 Audi A3, from ELRING and AJUSA.
Listed part numbers: AJUSA 52360600, ELRING 313201 and ELRING 576280, plus the other parts above.
Engine Cover
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TECHPRO Fits: 1.8L L4 Turbocharged | AU1228140 | 🇲🇽 MX | Front LowerMaterial: PE/Vacuum Form | View on Amazon |
| TECHPRO Fits: 1.8L L4 Turbocharged | AU1228128 | 🇲🇽 MX | Front Lower | View on Amazon |
This table covers the Engine covers.
TECHPRO supplies both parts for the 2018 Audi A3.
This group includes TECHPRO AU1228140 and TECHPRO AU1228128.
Engine Kit Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 1.8L L4 Turbocharged | 50447100 | 🇲🇽 MX | Engine # CJSA,CJSB,CNSB | View on Amazon |
This table covers full gasket kits covering the joints opened in an engine rebuild. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration.
One part is listed for the 2018 Audi A3 — AJUSA 50447100.
Fuel Pump Camshaft Follower
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| INA Fits: 1.8L L4 Turbocharged | VT02941 | 🇲🇽 MX | with CNSB Engine | View on Amazon |
This table covers the followers that drive a mechanical fuel pump off the camshaft.
One part is listed for the 2018 Audi A3 — INA VT02941.
High Pressure Diesel Injection Oil Pump (HPOP)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MARELLI Fits: 1.8L L4 Turbocharged | PHP1002 | 🇲🇽 MX | View on Amazon |
This table covers the high-pressure oil pumps that fire HEUI diesel injectors. Typical signs include noise from the pump, no pressure, or fluid that never arrives at the outlet. Prime or fill the pump as the notes require. A dry start is a common way to kill a new unit.
This group shows a single part: MARELLI PHP1002.
Intake Manifold Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Popular Fits: 1.8L L4 Turbocharged | 297590 | 🇲🇽 MX | Material: Fluoroelastomer (FPM) | View on Amazon |
| AJUSA Fits: 1.8L L4 Turbocharged | 13245500 | 🇲🇽 MX | Engine CJSA, CJSB, CNSB | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 470370 | 🇲🇽 MX | Inner Diameter [mm]: 45 | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 352810 | 🇲🇽 MX | Material: Metaloseal | View on Amazon |
| VICTOR REINZ Fits: 1.8L L4 Turbocharged | 714278600 | 🇲🇽 MX | Replaces OE Part Number(s) 06K129717A | View on Amazon |
This table covers the gaskets between the intake manifold and the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
5 Intake Manifold Gasket parts are listed for the 2018 Audi A3, from ELRING, AJUSA and VICTOR REINZ. ELRING 297590 carries the "Popular" badge.
This group includes ELRING 297590, AJUSA 13245500 and ELRING 470370 and the remaining parts above.
Intermediate Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 1.8L L4 Turbocharged | 299640 | 🇲🇽 MX | Outer Diameter [MM]: 32 | View on Amazon |
This table covers the seals at the Intermediate Shaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
This group shows a single part: ELRING 299640.
Motor Mount
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SUSPENSIA Fits: 1.8L L4 Turbocharged | X01EM0012 | 🇲🇽 MX | Right | View on Amazon |
| SUSPENSIA Fits: 1.8L L4 Turbocharged | X01EM0007 | 🇲🇽 MX | Frontwith Hydraulic Bearing | View on Amazon |
| ÜRO PARTS Fits: 1.8L L4 Turbocharged | 5Q0199262BK | 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Fits: 1.8L L4 Turbocharged | 1042355 | 🇲🇽 MX | Right | View on Amazon |
This table covers the mounts that hold the engine to the chassis. Typical signs include a clunk on takeoff, a vibration at idle, or a separated rubber insert. Support the powertrain before unbolting a mount, and torque the fasteners in the notes.
4 Motor Mount parts for the 2018 Audi A3 come from 3 brands — SUSPENSIA, ÜRO PARTS and BECK/ARNLEY.
The Economy section lists 3 options from SUSPENSIA and ÜRO PARTS — the catalog's value-priced group. SUSPENSIA X01EM0012 is listed in this group.
In the Standard Replacement grade, BECK/ARNLEY supplies 1 part: built to original-equipment specification. A representative part number is BECK/ARNLEY 1042355.
Listed part numbers: SUSPENSIA X01EM0012, SUSPENSIA X01EM0007 and ÜRO PARTS 5Q0199262BK, plus the other parts above.
Oil
Summary: Notes list SAE 5W-30 and SAE 5W-40. Confirm the engine and the weight on the filler cap before you buy. Replacement brands in this table include VALVOLINE and VAICO.
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: 1.8L L4 Turbocharged | VV966 | 🇲🇽 MX | European Vehicle Full Synthetic SAE 5W-401 Quart | View on Amazon |
| VAICO Fits: 1.8L L4 Turbocharged | V600422 | 🇲🇽 MX | Description: Engine Oil SAE 5W-40 C3 1 L | View on Amazon |
| VAICO Fits: 1.8L L4 Turbocharged | V600423 | 🇲🇽 MX | Description: Engine Oil SAE 5W-40 C3 4 L | View on Amazon |
| VALVOLINE Fits: 1.8L L4 Turbocharged | 881166 | 🇲🇽 MX | European Vehicle Full Synthetic SAE 5W-40Easy Pour 5 Quart | View on Amazon |
| VALVOLINE Fits: 1.8L L4 Turbocharged | 881167 | 🇲🇽 MX | European Vehicle Full Synthetic XL-III SAE 5W-30Easy Pour 5 Quart | View on Amazon |
This table covers the engine oils listed by grade and specification for this engine. Typical signs include a low-oil lamp, knocking after a long interval, or oil that has gone thin and black well before the next service. Match the viscosity and spec in the notes (and on the filler cap). The tables group grades — they are not interchangeable.
5 Oil parts for the 2018 Audi A3 come from 2 brands — VALVOLINE and VAICO. The "Popular" part is VALVOLINE VV966.
This group includes VALVOLINE VV966, VAICO V600422 and VAICO V600423 and the remaining parts above.
Oil Cooler
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ÜRO PARTS Fits: 1.8L L4 Turbocharged | 06L117021E | 🇲🇽 MX | View on Amazon |
This table covers the heat exchangers that cool engine oil. Typical signs include oil at the cooler fittings, or coolant that looks like a milkshake. Pressure-test both circuits after a cooler swap — a leak here mixes oil and coolant.
This group shows a single part: ÜRO PARTS 06L117021E.
Oil Cooler Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 1.8L L4 Turbocharged | 279610 | 🇲🇽 MX | Attraction | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 482140 | 🇲🇽 MX | Attraction | View on Amazon |
| MAHLE / CLEVITE Fits: 1.8L L4 Turbocharged | B33478 | 🇲🇽 MX | Engine Oil Cooler GasketMolded Rubber | View on Amazon |
This table covers the gaskets that seal the Oil Cooler. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
3 Oil Cooler Gasket parts are listed for the 2018 Audi A3, from ELRING and MAHLE / CLEVITE.
Listed part numbers: ELRING 279610, ELRING 482140 and MAHLE / CLEVITE B33478.
Oil Cooler Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 1.8L L4 Turbocharged | 315540 | 🇲🇽 MX | Material: HNBR (hydrogenated nitrile butadiene rubber) | View on Amazon |
This table covers the seals at the Oil Cooler. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
One part is listed for the 2018 Audi A3 — ELRING 315540.
Oil Drain Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: 1.8L L4 Turbocharged | 090090 | 🇲🇽 MX | Plastic | View on Amazon |
| ELRING Popular Fits: 1.8L L4 Turbocharged | 588690 | 🇲🇽 MX | Attraction | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 982340 | 🇲🇽 MX | with Seal RingBolt Head/Nut Design: Hexagon Socket | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 567640 | 🇲🇽 MX | with Seal RingBolt Head-/Nut Design: Male Hex | View on Amazon |
| ÜRO PARTS Fits: 1.8L L4 Turbocharged | 06L103801PRM | 🇲🇽 MX | ÜRO SolutionsHD Brass Upgrade, ACM Synthetic Rubber O-Ring | View on Amazon |
| ÜRO PARTS Fits: 1.8L L4 Turbocharged | 11137618512DP | 🇲🇽 MX | View on Amazon |
This table covers the drain plugs in the oil pan.
6 Oil Drain Plug parts for the 2018 Audi A3 come from 3 brands — ELRING, ÜRO PARTS and DORMAN. The "Popular" part is DORMAN 090090.
This group includes DORMAN 090090, ELRING 588690 and ELRING 982340 and the remaining parts above.
Oil Drain Plug Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 1.8L L4 Turbocharged | 813036 | 🇲🇽 MX | Material: CopperOuter Diameter [MM]: 20 | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 591840 | 🇲🇽 MX | Material: Steel | View on Amazon |
This table covers the crush washers and gaskets under the oil drain plug. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
ELRING supplies both parts for the 2018 Audi A3.
Part numbers include ELRING 813036 and ELRING 591840.
Oil Drain Plug Removal Tool
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 1.8L L4 Turbocharged | 090999 | 🇲🇽 MX | For GM, Ford, VW, Audi and BMW | View on Amazon |
| DORMAN Fits: 1.8L L4 Turbocharged | 49822 | 🇲🇽 MX | View on Amazon |
This table covers the Oil Drain Plug Removal tools. This is a service tool, not a wear part — match the application in the notes.
2 Oil Drain Plug Removal Tool parts for the 2018 Audi A3 come from DORMAN.
Listed part numbers: DORMAN 090999 and DORMAN 49822.
Oil Filler Cap Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 1.8L L4 Turbocharged | 24035800 | 🇲🇽 MX | View on Amazon |
This table covers the gaskets that seal the Oil Filler Cap. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
One part is listed for the 2018 Audi A3 — AJUSA 24035800.
Oil Filter
High Performance / Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOBIL Fits: 1.8L L4 Turbocharged | M1C258A | 🇲🇽 MX | Extended PerformanceStyle: Cartridge Lube Metal Free Filter | View on Amazon |
| MOBIL Fits: 1.8L L4 Turbocharged | M1C258 | 🇲🇽 MX | Extended Performance15,000 Mile Warranty | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO Fits: 1.8L L4 Turbocharged | OFCS2025 | 🇲🇽 MX | Includes Cap and Filter | View on Amazon |
| VARIOUS MFR Fits: 1.8L L4 Turbocharged | PG8161EX | 🇲🇽 MX | Extended LifeCartridge Filter | View on Amazon |
This table covers the oil filters that screw onto this engine's filter mount. Typical signs include low oil pressure after a service, or a filter that will not spin off because the old gasket stayed on the block. Lube the new gasket and tighten to the spec on the box; a double-gasket install dumps the sump on the first drive.
4 Oil Filter parts for the 2018 Audi A3 come from 3 brands — MOBIL, FEL-PRO and VARIOUS MFR.
The High Performance / Heavy Duty section lists 2 options from MOBIL — grouped under the catalog's "High Performance / Heavy Duty" designation — the notes column spells out what sets them apart. MOBIL M1C258A is listed in this group.
Standard Replacement: 2 parts, from FEL-PRO and VARIOUS MFR. A representative part number is FEL-PRO OFCS2025.
Listed part numbers: MOBIL M1C258A, MOBIL M1C258 and FEL-PRO OFCS2025, plus the other parts above.
Oil Filter Cover
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Fits: 1.8L L4 Turbocharged | MO319 | 🇲🇽 MX | View on Amazon | |
| ÜRO PARTS Fits: 1.8L L4 Turbocharged | 06L115401LPRM | 🇲🇽 MX | ÜRO SolutionsFilter Not included | View on Amazon |
| VAICO Fits: 1.8L L4 Turbocharged | V106835 | 🇲🇽 MX | Fits Transmission code: RAT, RAV, RMU, SKX, SQK, SWQ, SWR, SWS, TCY, TCZ, TDA, TNS, UAK, UAQ, UAT | View on Amazon |
This table covers the Oil Filter covers.
3 Oil Filter Cover parts are listed for the 2018 Audi A3, from MOTORAD, ÜRO PARTS and VAICO.
Part numbers include MOTORAD MO319, ÜRO PARTS 06L115401LPRM and VAICO V106835.
Oil Filter Housing Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 1.8L L4 Turbocharged | 279630 | 🇲🇽 MX | Attraction | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 330260 | 🇲🇽 MX | Material: HNBR (hydrogenated nitrile butadiene rubber) | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 332890 | 🇲🇽 MX | Material: AEM (Ethylene Acrylate Rubber) | View on Amazon |
This table covers the seals at the Oil Filter Housing. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
3 Oil Filter Housing Seal parts for the 2018 Audi A3 come from ELRING.
Part numbers include ELRING 279630, ELRING 330260 and ELRING 332890.
Oil Level Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ÜRO PARTS Fits: 1.8L L4 Turbocharged | 03F907660E | 🇲🇽 MX | View on Amazon | |
| WELLS Fits: 1.8L L4 Turbocharged | 5S15303 | 🇲🇽 MX | View on Amazon |
This table covers the Oil Level sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors.
2 Oil Level Sensor parts for the 2018 Audi A3 come from 2 brands — ÜRO PARTS and WELLS.
Listed part numbers: ÜRO PARTS 03F907660E and WELLS 5S15303.
Oil Level Sensor Gasket / O-Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 1.8L L4 Turbocharged | 351210 | 🇲🇽 MX | Colour: BlackMaterial: AEM (Ethylene Acrylate Rubber) | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 301540 | 🇲🇽 MX | Colour: Red | View on Amazon |
This table covers the Oil Level Sensor Gasket O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove.
2 Oil Level Sensor Gasket / O-Ring parts for the 2018 Audi A3 come from ELRING.
This group includes ELRING 351210 and ELRING 301540.
Oil Pan
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 1.8L L4 Turbocharged | 264629 | 🇲🇽 MX | LowerDirect Replacement For Plastic Pan | View on Amazon |
| DORMAN Fits: 1.8L L4 Turbocharged | 264889 | 🇲🇽 MX | OE FIX | View on Amazon |
| SPECTRA PREMIUM Fits: 1.8L L4 Turbocharged | VWP55A | 🇲🇽 MX | Includes Gasket | View on Amazon |
| ÜRO PARTS Fits: 1.8L L4 Turbocharged | 06K103600RPRM | 🇲🇽 MX | ÜRO SolutionsHeavy Duty Aluminum Upgrade | View on Amazon |
This table covers the oil pans that hold the engine's oil sump.
4 Oil Pan parts are listed for the 2018 Audi A3, from DORMAN, SPECTRA PREMIUM and ÜRO PARTS.
Listed part numbers: DORMAN 264629, DORMAN 264889 and SPECTRA PREMIUM VWP55A, plus the other parts above.
Oil Pan Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 1.8L L4 Turbocharged | 59016200 | 🇲🇽 MX | View on Amazon | |
| ELRING Fits: 1.8L L4 Turbocharged | 398260 | 🇲🇽 MX | Attraction | View on Amazon |
| ÜRO PARTS Fits: 1.8L L4 Turbocharged | 06K103649J | 🇲🇽 MX | View on Amazon | |
| VICTOR REINZ Fits: 1.8L L4 Turbocharged | 711083500 | 🇲🇽 MX | ACM (Polyacrylate) | View on Amazon |
This table covers the gaskets between the oil pan and the block. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
4 Oil Pan Gasket parts for the 2018 Audi A3 come from 4 brands — AJUSA, ELRING, ÜRO PARTS and 1 other brand.
This group includes AJUSA 59016200, ELRING 398260 and ÜRO PARTS 06K103649J and the remaining parts above.
Oil Pump Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 1.8L L4 Turbocharged | 332970 | 🇲🇽 MX | Engine SidedAttraction | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 245730 | 🇲🇽 MX | frontal sidedAttraction | View on Amazon |
This table covers the gaskets that seal the Oil Pump. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
ELRING supplies both parts for the 2018 Audi A3.
Part numbers include ELRING 332970 and ELRING 245730.
Piston Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HASTINGS MANUFACTURING Fits: 1.8L L4 Turbocharged | 2N5385S | 🇲🇽 MX | 1 Cylinder SetTop Groove: 1.20 mm | View on Amazon |
| HASTINGS MANUFACTURING Fits: 1.8L L4 Turbocharged | 2N5385 | 🇲🇽 MX | Full SetTop Groove: 1.20 mm or 1.50 mm | View on Amazon |
This table covers the rings that seal each piston to the cylinder wall.
HASTINGS MANUFACTURING supplies both parts for the 2018 Audi A3.
Listed part numbers: HASTINGS MANUFACTURING 2N5385S and HASTINGS MANUFACTURING 2N5385.
Rocker Arm
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| INA Fits: 1.8L L4 Turbocharged | VR0119 | 🇲🇽 MX | Intakewith CNSB Engine | View on Amazon |
This table covers the rocker arms that transfer cam motion to the valves.
This group shows a single part: INA VR0119.
Timing Belt & Component Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GMB Fits: 1.8L L4 Turbocharged | 34800923 | 🇲🇽 MX | Includes Water Pump | View on Amazon |
This table covers the Timing Belt & component kits.
This group shows a single part: GMB 34800923.
Timing Chain & Component Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DANSK Fits: 1.8L L4 Turbocharged | 1112501800 | 🇲🇽 MX | View on Amazon |
This table covers kits that group a timing chain with the related tensioners and guides.
This group shows a single part: DANSK 1112501800.
Timing Chain Tensioner
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ÜRO PARTS Fits: 1.8L L4 Turbocharged | 06K109467K | 🇲🇽 MX | View on Amazon |
This table covers the tensioners that keep the timing chain taut. Typical signs include belt flutter, a chirp that returns after a new belt, or an arm that no longer damps. Replace the tensioner with the belt at higher mileage.
This group shows a single part: ÜRO PARTS 06K109467K.
Timing Cover
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 1.8L L4 Turbocharged | 231851 | 🇲🇽 MX | with Crankshaft Seal | View on Amazon |
| ÜRO PARTS Fits: 1.8L L4 Turbocharged | 06K109210AF | 🇲🇽 MX | Lower | View on Amazon |
This table covers the Timing covers.
2 Timing Cover parts are listed for the 2018 Audi A3, from ELRING and ÜRO PARTS.
This group includes ELRING 231851 and ÜRO PARTS 06K109210AF.
Timing Cover Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 1.8L L4 Turbocharged | 302690 | 🇲🇽 MX | Cylinder HeadAttraction | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 268000 | 🇲🇽 MX | Cylinder HeadAttraction | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 872370 | 🇲🇽 MX | Attraction | View on Amazon |
This table covers the gaskets that seal the Timing Cover. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
3 Timing Cover Gasket parts for the 2018 Audi A3 come from ELRING.
This group includes ELRING 302690, ELRING 268000 and ELRING 872370.
Turbocharger
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD Fits: 1.8L L4 Turbocharged | 2511633 | 🇲🇽 MX | Original Equipment (OE) Specifications | View on Amazon |
This table covers the turbochargers that compress intake air.
This group shows a single part: GPD 2511633.
Turbocharger Boost Solenoid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ÜRO PARTS Fits: 1.8L L4 Turbocharged | 06H906283J | 🇲🇽 MX | View on Amazon |
This table covers the Turbocharger Boost solenoids. Typical signs include a harsh or missing shift, or a code for this solenoid circuit. Check resistance and the connector before dropping the pan for a solenoid.
This group shows a single part: ÜRO PARTS 06H906283J.
Turbocharger Diverter / Bypass Valve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ÜRO PARTS Fits: 1.8L L4 Turbocharged | 06H145710D | 🇲🇽 MX | Cut-Off Valve | View on Amazon |
This table covers the Turbocharger Diverter / Bypass valves. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one.
This group shows a single part: ÜRO PARTS 06H145710D.
Turbocharger Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 1.8L L4 Turbocharged | JTC11717 | 🇲🇽 MX | Mounting Gasket Set | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 006060 | 🇲🇽 MX | Inner Diameter [MM]: 56 | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 268402 | 🇲🇽 MX | Inner Diameter [MM]: 44 | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 847040 | 🇲🇽 MX | Inner Diameter [MM]: 65 | View on Amazon |
This table covers the gaskets that seal the Turbocharger. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
4 Turbocharger Gasket parts are listed for the 2018 Audi A3, from ELRING and AJUSA.
Part numbers include AJUSA JTC11717, ELRING 006060 and ELRING 268402, among others listed above.
Turbocharger Mounting Hardware
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 1.8L L4 Turbocharged | 793230 | 🇲🇽 MX | with gaskets/sealswith Mounting Manual,with Bolts/Screws | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 570870 | 🇲🇽 MX | with gaskets/sealswith Mounting Manual,with Bolts/Screws | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 877100 | 🇲🇽 MX | with gaskets/sealswith Mounting Manual,with Bolts/Screws | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 100090 | 🇲🇽 MX | with gaskets/sealswith Bolts/Screws | View on Amazon |
This table covers the fasteners that mount the turbocharger.
ELRING supplies the 4 Turbocharger Mounting Hardware parts for the 2018 Audi A3.
This group includes ELRING 793230, ELRING 570870 and ELRING 877100 and the remaining parts above.
Turbocharger Oil Line
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 1.8L L4 Turbocharged | OP10639 | 🇲🇽 MX | Engine # CJSA, CJSB, CNSBSupply Tube | View on Amazon |
| DORMAN Fits: 1.8L L4 Turbocharged | 667428 | 🇲🇽 MX | Return | View on Amazon |
| SUNSONG Fits: 1.8L L4 Turbocharged | 5804226 | 🇲🇽 MX | Return | View on Amazon |
This table covers the Turbocharger Oil lines. Typical signs include a wet fitting, a rusted pipe, or a pressure loss in this circuit. Flare or thread the new line the way the notes specify; a kinked replacement will fail early.
3 Turbocharger Oil Line parts for the 2018 Audi A3 come from 3 brands — AJUSA, DORMAN and SUNSONG.
Listed part numbers: AJUSA OP10639, DORMAN 667428 and SUNSONG 5804226.
Turbocharger Oil Line Gasket / O-Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 1.8L L4 Turbocharged | 245830 | 🇲🇽 MX | Mounting Bores Distance [MM]: 38 | View on Amazon |
This table covers the Turbocharger Oil Line Gasket O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove.
This group shows a single part: ELRING 245830.
Valve Cover Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Popular Fits: 1.8L L4 Turbocharged | 75000400 | 🇲🇽 MX | Engine CJSA, CJSB, CNSB | View on Amazon |
| ELRING Popular Fits: 1.8L L4 Turbocharged | 461682 | 🇲🇽 MX | Available as universal article as well, See article No.: 461.682 EL-LIQ 74Material: Zinc-Copper brazing alloy (ZN-CU) | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 374000 | 🇲🇽 MX | Material: Polyacrylate Rubber (ACM) | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 330200 | 🇲🇽 MX | Material: Polyacrylate Rubber (ACM) | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 982110 | 🇲🇽 MX | Material: Zinc-Copper brazing alloy (ZN-CU) | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 982100 | 🇲🇽 MX | Material: Zinc-Copper brazing alloy (ZN-CU) | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 471650 | 🇲🇽 MX | Material: Metaloseal | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 793630 | 🇲🇽 MX | Material: Metaloseal | View on Amazon |
This table covers the gaskets that seal the valve cover to the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
8 Valve Cover Gasket parts for the 2018 Audi A3 come from 2 brands — ELRING and AJUSA. The "Popular" part is AJUSA 75000400.
This group includes AJUSA 75000400, ELRING 461682 and ELRING 374000 and the remaining parts above.
Valve Cover Grommet
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 1.8L L4 Turbocharged | 035450 | 🇲🇽 MX | Attraction | View on Amazon |
This table covers the Valve Cover grommets.
This group shows a single part: ELRING 035450.
Valve Guide
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ENGINETECH Fits: 1.8L L4 Turbocharged | GD3027 | 🇲🇽 MX | Bronze | View on Amazon |
This table covers the pressed-in bronze and cast-iron guides that align valve stems. Typical signs include oil smoke on startup, a guide that has gone oval, or a valve that no longer seats quietly. Guides are a machine-shop fit. Confirm stem diameter in the notes before ordering.
This group shows a single part: ENGINETECH GD3027.
Valve Lifter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 1.8L L4 Turbocharged | 85009000 | 🇲🇽 MX | Engine # CJSA,CJSB,CNSB | View on Amazon |
This table covers the lifters / tappets that transfer cam motion to the valves.
This group shows a single part: AJUSA 85009000.
Valve Stem Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Popular Fits: 1.8L L4 Turbocharged | 724590 | 🇲🇽 MX | Colour: BlackHeight [MM]: 9,3 | View on Amazon |
| AJUSA Fits: 1.8L L4 Turbocharged | 57042000 | 🇲🇽 MX | Engine CJSA,CJSB,CNSB | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 308610 | 🇲🇽 MX | Height [MM]: 10,3Material: FPM (fluoride rubber) | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 302890 | 🇲🇽 MX | Height [MM]: 9,7Thickness: 9.7 mm | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 235610 | 🇲🇽 MX | SetMaterial: FPM (fluoride rubber) | View on Amazon |
This table covers the seals on each valve stem that control oil into the guides. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
5 Valve Stem Seal parts for the 2018 Audi A3 come from 2 brands — ELRING and AJUSA. The "Popular" part is ELRING 724590.
Listed part numbers: ELRING 724590, AJUSA 57042000 and ELRING 308610, plus the other parts above.
Variable Valve Timing (VVT) Solenoid Gasket / Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 1.8L L4 Turbocharged | 332730 | 🇲🇽 MX | Material: ACM (Polyacrylate) | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 732692 | 🇲🇽 MX | Cylinder Head, Transmission SidedAttraction | View on Amazon |
This table covers the seals at the Variable Valve Timing (VVT) Solenoid Gasket. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
ELRING supplies both parts for the 2018 Audi A3.
Part numbers include ELRING 332730 and ELRING 732692.
Buying Engine Parts for a 2018 Audi A3
On this vehicle, the engine covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components.
- Match the engine first. Every engine part here is engine-specific; each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Crankshaft Seal and Valve Cover Gasket .
Frequently Asked Questions
How many engine parts fit the 2018 Audi A3?
Our catalog currently lists 140 engine parts for the 2018 Audi A3 across 53 subcategories and 25 brands, covering all 4 engine options (1.4L L4 ELECTRIC/GAS Turbocharged, 1.4L L4 Turbocharged, 1.8L L4 Turbocharged and 2.0L L4 Turbocharged). Each part is matched to the engine(s) it fits.
Do engine parts differ between 2018 Audi A3 engines?
Yes. Every engine part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of engine problems on a 2018 Audi A3?
Common symptoms include oil spots under the vehicle, blue or white exhaust smoke, ticking from the valvetrain, or coolant mysteriously disappearing. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What oil viscosity is listed for the 2018 Audi A3?
Oil rows on this page include SAE 5W-30 and SAE 5W-40. Confirm the engine and the weight on the filler cap before you buy — high-mileage and standard fills can differ.
What should I replace at the same time?
Where labor overlaps, replace the seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2018 Audi A3 was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2018 Audi A3?
First match the engine — each row shows which engine(s) the part fits. Then engine hard parts are unforgiving of guesswork — confirm the casting or engine code before ordering, because one model year can hide two different blocks. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2018 Audi A3
Engine Parts for Other Audi A3 Years
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