2020 Audi S4 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

16 Coolant / Antifreeze parts for the 2020 Audi S4 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.

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

2 Coolant Reservoir parts are listed for the 2020 Audi S4, from REIN and VAICO.

This group includes REIN EPT0271 and VAICO V105349.

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

2 Coolant Reservoir Cap parts are listed for the 2020 Audi S4, from MOTORAD and ÜRO PARTS.

Part numbers include MOTORAD T111 and ÜRO PARTS 4M0121321Q.

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

3 Intercooler parts for the 2020 Audi S4 come from 3 brands — GPD, TECHPRO and TYC.

Part numbers include GPD 2711414, TECHPRO AU3012113 and TYC 18105.

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

2 Radiator parts for the 2020 Audi S4 come from 2 brands — MAHLE / CLEVITE and NISSENS.

Part numbers include MAHLE / CLEVITE CR960000S and NISSENS 606578.

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

5 Radiator Fan Assembly parts are listed for the 2020 Audi S4, from VEMO, GPD and UAC. UAC FA50946C carries the "Popular" badge.

Economy: 4 parts, from VEMO and GPD. A representative part number is GPD 2812266.

The Standard Replacement section: 1 option from UAC. UAC FA50946C is listed in this group.

Part numbers include UAC FA50946C, GPD 2812266 and VEMO V15011943, 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 2020 Audi S4.

This group includes VNE 41000073 and VNE 41000074.

This table covers the Radiator Insulator sleeves. Read more

One part is listed for the 2020 Audi S4 — 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 2020 Audi S4 — 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

5 Temperature Sender / Sensor parts for the 2020 Audi S4 come from 5 brands — GPD, HOLSTEIN, WALKER PRODUCTS and 2 other brands. The "Popular" part is WALKER PRODUCTS 2112035.

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

Standard Replacement: 3 parts, from WALKER PRODUCTS, BECK/ARNLEY and VNE. A representative part number is WALKER PRODUCTS 2112035.

Listed part numbers: WALKER PRODUCTS 2112035, GPD 1814521 and HOLSTEIN 2CTS0163, plus the other parts above.