The 2018 Audi RS3 has 47 cooling system parts with verified fitment on this page — 13 part types and 25 brands, covering the 2.5L L5 Turbocharged engine. Each part includes a manufacturer part number and application notes.
On the 2018 Audi RS3, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses. Most of the listed parts are Coolant / Antifreeze (16 parts), Temperature Sender / Sensor (11 parts) and Coolant Reservoir (3 parts). The other 10 part types cover the remaining 17 parts.
Every part on this page is matched to the 2.5L L5 Turbocharged — the only engine offered in the 2018 Audi RS3.
The most listed brands for 2018 Audi RS3 cooling system parts are PRESTONE (5 parts), PEAK (4 parts) and GPD (4 parts), plus 22 more brands. Quality grades include Standard Replacement, Economy and Premium.
7 parts on this 2018 Audi RS3 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including FVP MV5050GAL (Coolant / Antifreeze) and STANDARD MOTOR PRODUCTS TS608T (Temperature Sender / Sensor). Click any part number to see every vehicle that part fits.
Coolant / Antifreeze
Compatible With All Colors
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE | AF3055 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Popular | MV5050GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Extended LifeAll Makes / All Models | View on Amazon |
| PRESTONE Popular | AF3100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| VALVOLINE Popular | 719009 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Multi-Vehicle Yellow1 Gallon | View on Amazon |
| PEAK | BQA1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Blue Mountain Long LifeAll Vehicle | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular | AF2100 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | All Vehicles10yr/300k mi | View on Amazon |
| PEAK | PKP1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK | PXA1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 1 GallonGlobal Lifetime | View on Amazon |
| PRESTONE | AF6510 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | MAX European Violet1 Gallon | View on Amazon |
| PRESTONE | AFMAX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AISIN | ACE010 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | VioletSi-OAT | View on Amazon |
| PEAK | PEV1GAL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OET European Extended Life Violet1 Gallon | View on Amazon |
| PENTOSIN | 8114306 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pentofrost E1 Gallon | View on Amazon |
| PENTOSIN | 8113106 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pentofrost E1.5 Liters | View on Amazon |
| PENTOSIN | 8113206 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pentofrost E5 Liters | View on Amazon |
| VALVOLINE | 904683 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HT-12 Pink1 Gallon | View on Amazon |
This table covers the engine coolants and antifreeze formulations specified for this cooling system. Typical signs include a rising temperature gauge, rusty or sludged coolant, or a heater that blows cold. Use the chemistry named in the notes. Mixing silicate, OAT and HOAT formulas can gel in the radiator.
16 Coolant / Antifreeze parts for the 2018 Audi RS3 come from 6 brands — PRESTONE, PEAK, PENTOSIN and 3 other brands. The "Popular" part is FVP MV5050GAL.
In the Compatible With All Colors grade, PRESTONE supplies 1 part: grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. A representative part number is PRESTONE AF3055.
The Economy section lists 4 options from FVP, PRESTONE, VALVOLINE and 1 other brand — the catalog's value-priced group. FVP MV5050GAL is listed in this group.
In the Premium grade, PRESTONE and PEAK supply 5 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is PRESTONE AF2100.
In the Standard Replacement grade, PENTOSIN, AISIN, PEAK and 1 other brand supply 6 parts: built to original-equipment specification. A representative part number is AISIN ACE010.
Coolant Hose / Pipe Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 01165600 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector / Flange | View on Amazon |
This table covers the seals at the Coolant Hose / Pipe. 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 RS3 — AJUSA 01165600.
Coolant Hose Connector / Flange
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD | CH2131 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Water Inlet | View on Amazon |
| ÜRO PARTS | 07K121133E | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Coolant Hose Connector flanges.
2 Coolant Hose Connector / Flange parts for the 2018 Audi RS3 come from 2 brands — MOTORAD and ÜRO PARTS.
This group includes MOTORAD CH2131 and ÜRO PARTS 07K121133E.
Coolant Hose Flange Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ÜRO PARTS | 357121140 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Plug Kit with Plug and O-Ring | View on Amazon |
This table covers the Coolant Hose Flange 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: ÜRO PARTS 357121140.
Coolant Hose Retainer / Clip
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY | 1470039 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the Coolant Hose retainers and clips.
This group shows a single part: BECK/ARNLEY 1470039.
Coolant Reservoir
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD | 2411051 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| NISSENS | 996116 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| SKP | SK603253 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the overflow / expansion tanks that hold extra coolant.
3 Coolant Reservoir parts are listed for the 2018 Audi RS3, from GPD, NISSENS and SKP.
Listed part numbers: GPD 2411051, NISSENS 996116 and SKP SK603253.
Coolant Reservoir Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CALORSTAT | RC0162 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Maximum Pressure Rating: 23.0 PS | View on Amazon |
| MOTORAD | T93 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Standard | View on Amazon |
| REIN | CPE0039 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the caps on the overflow / expansion tank. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable.
3 Coolant Reservoir Cap parts are listed for the 2018 Audi RS3, from CALORSTAT, MOTORAD and REIN.
Part numbers include CALORSTAT RC0162, MOTORAD T93 and REIN CPE0039.
Radiator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD | 13174C | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the radiators that dump engine heat to airflow through the core. Typical signs include overheating in traffic, a wet core, or coolant that disappears with no puddle. Replace the cap if it cannot hold the rated pressure, and bleed the system after the swap.
This group shows a single part: GPD 13174C.
Radiator Fan Assembly
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GPD | 2812297 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fan Type: Double | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NISSENS | 850155 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Right | View on Amazon |
This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator.
2 Radiator Fan Assembly parts are listed for the 2018 Audi RS3, from GPD and NISSENS.
Economy: 1 part, from GPD. A representative part number is GPD 2812297.
The Standard Replacement section: 1 option from NISSENS. NISSENS 850155 is listed in this group.
This group includes GPD 2812297 and NISSENS 850155.
Radiator Mount
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REIN | AVM0728 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Lower | View on Amazon |
| VNE | 41000012 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Lower | View on Amazon |
| VNE | 41000038 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Upper | View on Amazon |
This table covers the Radiator mounts. 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.
3 Radiator Mount parts are listed for the 2018 Audi RS3, from VNE and REIN.
Listed part numbers: REIN AVM0728, VNE 41000012 and VNE 41000038.
Temperature Sender / Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | TS608T | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | T-Series | View on Amazon |
| GPD | 1712644 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Oval Connectorwith 2 Terminal(s) | View on Amazon |
| ULTRA-POWER | 5S1608 | 🇺🇸 US 🇨🇦 CA | Fits Coolant Pumpor Cooling Pump | View on Amazon |
| UNITED MOTOR PRODUCTS | CTS351 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Popular | 1580784 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| STANDARD MOTOR PRODUCTS Popular | TS608 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| DELPHI | TS10278 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| HELLA | 009309331 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 2-Pin ConnectorPlugged | View on Amazon |
| VNE | 26904289 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 2 Pin Connector, Brass Cap | View on Amazon |
| WALKER PRODUCTS | 2111056 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Sensor Only or Sender Only | View on Amazon |
| WELLS | 5S1608 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Wiring Harness Included: No | View on Amazon |
This table covers the senders that report coolant temperature to the gauge or ECU. Typical signs include a gauge that sits on empty or overheat, or a lamp that does not match what the engine is doing. Rule out the cluster and the wiring before replacing the sender.
11 Temperature Sender / Sensor parts for the 2018 Audi RS3 come from 10 brands — STANDARD MOTOR PRODUCTS, GPD, ULTRA-POWER and 7 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS TS608T.
The Economy section: 4 options from STANDARD MOTOR PRODUCTS, GPD, ULTRA-POWER and 1 other brand. STANDARD MOTOR PRODUCTS TS608T is listed in this group.
Standard Replacement: 7 parts, from BECK/ARNLEY, STANDARD MOTOR PRODUCTS, DELPHI and 4 other brands. A representative part number is BECK/ARNLEY 1580784.
Thermostat Housing / Water Outlet
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY | 1470096 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Includes 2 Pin Coolant Temp Sensor. if 4 Pin Sensor is needed, purchase 158-0629 and replace. | View on Amazon |
| GATES | CO34883 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Water Outlet | View on Amazon |
This table covers the housings and outlets the thermostat sits in.
2 Thermostat Housing / Water Outlet parts are listed for the 2018 Audi RS3, from BECK/ARNLEY and GATES.
Listed part numbers: BECK/ARNLEY 1470096 and GATES CO34883.
Water Pump
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PIERBURG | 708002010 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | ElectricHolder Type ID: 93AL | View on Amazon |
This table covers the pumps that circulate coolant through the block and radiator. Typical signs include coolant at the weep hole, pulley play, or a growl from the front of the engine. Replace the thermostat and refill with the specified coolant whenever the pump comes off.
One part is listed for the 2018 Audi RS3 — PIERBURG 708002010.
Buying Cooling System Parts for a 2018 Audi RS3
On this vehicle, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses.
- Confirm you have the 2.5L L5 Turbocharged engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Coolant / Antifreeze and Temperature Sender / Sensor .
Frequently Asked Questions
How many cooling system parts fit the 2018 Audi RS3?
Our catalog currently lists 47 cooling system parts for the 2018 Audi RS3 across 13 subcategories and 25 brands, covering the 2.5L L5 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of cooling system problems on a 2018 Audi RS3?
Common symptoms include a rising temperature gauge in traffic, sweet-smelling steam, crusty deposits around hose clamps, or a heater that blows cold. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
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 RS3 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 RS3?
Every part on this page is matched to the 2.5L L5 Turbocharged engine. Then replace coolant with the exact specification the manufacturer calls for — mixing chemistries can gel and block small passages. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2018 Audi RS3
Cooling System Parts for Other Audi RS3 Years
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