2021 Audi A7 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

14 Coolant / Antifreeze parts for the 2021 Audi A7 come from 5 brands — PRESTONE, PEAK, PENTOSIN and 2 other brands. The "Popular" part is PRESTONE AF3100. Every part fits all 3 engine options (2.0L L4 ELECTRIC/GAS Turbocharged, 2.0L L4 Turbocharged and 3.0L V6 Turbocharged).

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 2 options from PRESTONE and PEAK — the catalog's value-priced group. PRESTONE AF3100 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.

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

This group shows a single part: REIN CHP0663.

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

2 Coolant Hose / Pipe Seal parts are listed for the 2021 Audi A7, from FEL-PRO and MAHLE / CLEVITE.

Listed part numbers: FEL-PRO 36130 and MAHLE / CLEVITE C32354.

This table covers the Coolant Hose Connector flanges. Read more

This group shows a single part: VAICO V105890.

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

One part is listed for the 2021 Audi A7 — REIN EPT0142.

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

5 Coolant Reservoir Cap parts are listed for the 2021 Audi A7, from MOTORAD, CALORSTAT, REIN and 1 other brand. 1 part fits every engine; the other 4 are engine-specific.

Part numbers include CALORSTAT RC0162, MOTORAD T93 and MOTORAD T111, among others listed above.

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

3 Intercooler parts for the 2021 Audi A7 come from 2 brands — NISSENS and HELLA.

Part numbers include HELLA 366340871, NISSENS 961466 and NISSENS 961345.

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

10 Radiator parts for the 2021 Audi A7 come from 8 brands — NISSENS, GPD, VEMO and 5 other brands. The "Popular" part is NISSENS 606573. 2 parts fit every engine; the other 8 are engine-specific.

The Economy section: 2 options from GPD and VEMO. GPD 13773C is listed in this group.

Standard Replacement: 8 parts, from NISSENS, TYC, UAC and 3 other brands. A representative part number is NISSENS 606573.

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

7 Radiator Fan Assembly parts are listed for the 2021 Audi A7, from VEMO, UAC, GPD and 1 other brand. UAC FA50946C carries the "Popular" badge. 4 parts fit every engine; the other 3 are engine-specific.

Economy: 5 parts, from VEMO, GPD and TECHPRO. A representative part number is GPD 2812266.

The Standard Replacement section: 2 options from UAC. UAC FA50946C is listed in this group.

Part numbers include UAC FA50946C, GPD 2812266 and TECHPRO AU3115124, among others listed above.

This table covers the shrouds that duct air through the fan and radiator. Read more

This group shows a single part: SKP SK621318.

This table covers the Radiator insulators. Read more

VNE supplies both parts for the 2021 Audi A7.

Listed part numbers: VNE 41000073 and VNE 41000074.

This table covers the Radiator Insulator sleeves. Read more

One part is listed for the 2021 Audi A7 — REIN AVM0730.

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

One part is listed for the 2021 Audi A7 — REIN AVM0729.

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

7 Temperature Sender / Sensor parts for the 2021 Audi A7 come from 7 brands — GPD, HOLSTEIN, STANDARD MOTOR PRODUCTS and 4 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS TX275. 2 parts fit every engine; the other 5 are engine-specific.

The Economy section: 2 options from GPD and HOLSTEIN. GPD 1814521 is listed in this group.

Standard Replacement: 5 parts, from STANDARD MOTOR PRODUCTS, BECK/ARNLEY, NISSENS and 2 other brands. A representative part number is STANDARD MOTOR PRODUCTS TX275.

Part numbers include STANDARD MOTOR PRODUCTS TX275, GPD 1814521 and HOLSTEIN 2CTS0163, among others listed above.

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

8 Thermostat parts are listed for the 2021 Audi A7, from BECK/ARNLEY, INA, VEMO and 3 other brands.

Economy: 1 part, from VEMO. A representative part number is VEMO V15992107.

The Standard Replacement section: 2 options from BECK/ARNLEY and INA. BECK/ARNLEY 1430913 is listed in this group.

5 ungrouped parts are not assigned to a grade, with the same engine-level match.

This group includes VEMO V15992107, BECK/ARNLEY 1430913 and INA XW0360 and the remaining parts above.

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

3 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2021 Audi A7 come from 2 brands — MAHLE / CLEVITE and ELRING.

This group includes ELRING 453710, MAHLE / CLEVITE 72622 and MAHLE / CLEVITE C33480.

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

3 Thermostat Housing / Water Outlet parts are listed for the 2021 Audi A7, from GATES, MOTORAD and VEMO.

Listed part numbers: GATES CO34954, MOTORAD CH3116 and VEMO V10990020.

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

25 Water Pump parts are listed for the 2021 Audi A7, from PIERBURG, GATES, BECK/ARNLEY and 9 other brands. BECK/ARNLEY 1312513 carries the "Popular" badge. 6 parts fit every engine; the other 19 are engine-specific.

Economy: 7 parts, from BECK/ARNLEY, US MOTOR WORKS, FVP and 2 other brands. A representative part number is BECK/ARNLEY 1312513.

The Standard Replacement section: 17 options from PIERBURG, GATES, NISSENS and 3 other brands. GATES 42209 is listed in this group.

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