2018 Audi Q3 Cooling System Parts

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. Read more

17 Coolant / Antifreeze parts for the 2018 Audi Q3 come from 6 brands — PRESTONE, PEAK, PENTOSIN and 3 other brands. The "Popular" part is FVP MV5050GAL. 13 parts fit every engine; the other 4 are engine-specific.

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 Heavy Duty grade, PRESTONE supplies 1 part: rated for severe service. A representative part number is PRESTONE AFC12100.

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.

This table covers the hard pipes and extra hoses in the coolant circuit. Read more

11 Coolant Hose / Pipe parts for the 2018 Audi Q3 come from 4 brands — REIN, VAICO, SKP and 1 other brand. The "Popular" part is REIN CHC0712. 1 part fits every engine; the other 10 are engine-specific.

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. Read more

6 Coolant Hose / Pipe Seal parts are listed for the 2018 Audi Q3, from ELRING, MAHLE / CLEVITE, VICTOR REINZ and 2 other brands. MAHLE / CLEVITE C32208 carries the "Popular" badge. 1 part fits every engine; the other 5 are engine-specific.

Listed part numbers: MAHLE / CLEVITE C32208, VICTOR REINZ 411047900 and DORMAN 47451, plus the other parts above.

This table covers the Coolant Hose Connector flanges. Read more

9 Coolant Hose Connector / Flange parts for the 2018 Audi Q3 come from 4 brands — REIN, VAICO, SKP and 1 other brand. The "Popular" part is SKP SK121147.

The Economy section: 1 option from SKP. SKP SK121147 is listed in this group.

Standard Replacement: 8 parts, from REIN, VAICO and MOTORAD. A representative part number is REIN CHC0886.

Part numbers include SKP SK121147, REIN CHC0886 and MOTORAD CH8019, among others listed above.

This table covers the seals at the Coolant Hose Connector / Flange. 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. Read more

ELRING supplies both parts for the 2018 Audi Q3.

This group includes ELRING 332740 and ELRING 234230.

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. Read more

This group shows a single part: ÜRO PARTS 357121140.

This table covers the overflow / expansion tanks that hold extra coolant. Read more

9 Coolant Reservoir parts are listed for the 2018 Audi Q3, from TECHPRO, GPD, MAHLE / CLEVITE and 5 other brands. GPD 2411051 carries the "Popular" badge. 4 parts fit every engine; the other 5 are engine-specific.

Listed part numbers: GPD 2411051, MAHLE / CLEVITE CRT19000S and SKP SK603253, plus the other parts above.

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. Read more

4 Coolant Reservoir Cap parts are listed for the 2018 Audi Q3, from CALORSTAT, GATES, MOTORAD and 1 other brand.

This group includes CALORSTAT RC0162, GATES 31529 and MOTORAD T93 and the remaining parts above.

This table covers the Cooling Fan control modules. Read more

4 Cooling Fan Control Module parts are listed for the 2018 Audi Q3, from GATES, STANDARD MOTOR PRODUCTS, ÜRO PARTS and 1 other brand. 2 parts fit every engine; the other 2 are engine-specific.

Part numbers include GATES FCM157, STANDARD MOTOR PRODUCTS RY1904 and ÜRO PARTS 8K0959501G, among others listed above.

This table covers the adapters used to pressure-test this cooling system. Read more

2 Cooling System Tester Adapter parts for the 2018 Audi Q3 come from GATES.

This group includes GATES 31433 and GATES 31434.

This table covers the intercoolers that cool turbo or supercharger charge air. Read more

8 Intercooler parts for the 2018 Audi Q3 come from 6 brands — GPD, MAHLE / CLEVITE, NISSENS and 3 other brands. The "Popular" part is NISSENS 96610.

Part numbers include NISSENS 96610, TYC 18050 and DORMAN 918990, among others listed above.

This table covers the Intercooler Air Hose pipes. Read more

4 Intercooler Air Hose / Pipe parts for the 2018 Audi Q3 come from 4 brands — ACDELCO, DORMAN, GATES and 1 other brand.

Part numbers include ACDELCO 26226 and DORMAN 667372, among others listed above.

This table covers the gaskets that seal the Intercooler. 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. Read more

One part is listed for the 2018 Audi Q3 — AJUSA 01320600.

This table covers the seals at the Intercooler. 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. Read more

One part is listed for the 2018 Audi Q3 — VAICO V104453.

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. Read more

14 Radiator parts for the 2018 Audi Q3 come from 10 brands — NISSENS, GPD, TECHPRO and 7 other brands. The "Popular" part is CSF 3518. 1 part fits every engine; the other 13 are engine-specific.

The Economy section: 3 options from GPD and TECHPRO. GPD 13679C is listed in this group.

Standard Replacement: 11 parts, from NISSENS, CSF, KOYORAD and 5 other brands. A representative part number is CSF 3518.

This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator. Read more

10 Radiator Fan Assembly parts are listed for the 2018 Audi Q3, from GPD, NISSENS, MAHLE / CLEVITE and 3 other brands. NISSENS 850099 carries the "Popular" badge. 2 parts fit every engine; the other 8 are engine-specific.

Economy: 4 parts, from GPD and TECHPRO. A representative part number is GPD 2811880.

The Standard Replacement section: 6 options from NISSENS, MAHLE / CLEVITE, TYC and 1 other brand. NISSENS 850099 is listed in this group.

This table covers the Radiator insulators. Read more

VNE supplies the 3 Radiator Insulator parts for the 2018 Audi Q3.

Listed part numbers: VNE 41000034, VNE 41000078 and VNE 41000079.

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. Read more

REIN supplies both parts for the 2018 Audi Q3.

Listed part numbers: REIN AVM0716 and REIN AVM0702.

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. Read more

14 Temperature Sender / Sensor parts for the 2018 Audi Q3 come from 12 brands — STANDARD MOTOR PRODUCTS, VNE, GPD and 9 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS TS608T. 7 parts fit every engine; the other 7 are engine-specific.

The Economy section: 5 options from STANDARD MOTOR PRODUCTS, GPD, HOLSTEIN and 2 other brands. STANDARD MOTOR PRODUCTS TS608T is listed in this group.

Standard Replacement: 9 parts, from VNE, BECK/ARNLEY, STANDARD MOTOR PRODUCTS and 5 other brands. A representative part number is BECK/ARNLEY 1580784.

This table covers the thermostats that open the coolant circuit at the specified temperature. Typical signs include slow warm-up, a gauge that climbs in traffic, or heat that never quite arrives. Replace the housing gasket with the thermostat and bleed the system so a trapped air pocket does not cook the new part. Read more

12 Thermostat parts are listed for the 2018 Audi Q3, from CALORSTAT, MOTORAD, MAHLE / CLEVITE and 5 other brands. MOTORAD 707203 carries the "Popular" badge. 2 parts fit every engine; the other 10 are engine-specific.

Economy: 1 part, from ÜRO PARTS. A representative part number is ÜRO PARTS 06H121113B.

The Standard Replacement section: 11 options from CALORSTAT, MOTORAD, MAHLE / CLEVITE and 4 other brands. MOTORAD 707203 is listed in this group.

This table covers the seals at the thermostat housing and water outlet. 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. Read more

13 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2018 Audi Q3 come from 6 brands — ELRING, FEL-PRO, AJUSA and 3 other brands. The "Popular" part is ELRING 453710.

This table covers the housings and outlets the thermostat sits in. Read more

8 Thermostat Housing / Water Outlet parts are listed for the 2018 Audi Q3, from MOTORAD, DORMAN, SKP and 2 other brands. DORMAN 9025866 carries the "Popular" badge.

Economy: 3 parts, from DORMAN and SKP. A representative part number is DORMAN 9025866.

The Standard Replacement section: 4 options from MOTORAD, FOUR SEASONS and GATES. FOUR SEASONS 86001 is listed in this group.

1 ungrouped part is not assigned to a grade, with the same engine-level match.

Part numbers include DORMAN 9025866, DORMAN 902034 and SKP SK9025866, among others listed above.

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. Read more

5 Water Pump parts are listed for the 2018 Audi Q3, from BECK/ARNLEY, FOUR SEASONS and GATES. BECK/ARNLEY 1312460 carries the "Popular" badge.

Economy: 3 parts, from BECK/ARNLEY. A representative part number is BECK/ARNLEY 1312460.

The Standard Replacement section: 2 options from FOUR SEASONS and GATES. FOUR SEASONS 89030 is listed in this group.

This group includes BECK/ARNLEY 1312460, BECK/ARNLEY 1312437 and BECK/ARNLEY 1312461 and the remaining parts above.

This table covers the gaskets between the water pump and the block or housing. 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. Read more

4 Water Pump Gasket parts for the 2018 Audi Q3 come from 2 brands — ELRING and BECK/ARNLEY.

This group includes BECK/ARNLEY 0394172, ELRING 249150 and ELRING 323380 and the remaining parts above.