2024 Audi A6 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

12 Coolant / Antifreeze parts for the 2024 Audi A6 come from 4 brands — PRESTONE, PEAK, VALVOLINE and 1 other brand. The "Popular" part is PRESTONE AF3100. 11 parts fit every engine; the other 1 is 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 3 options from PRESTONE, VALVOLINE 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, AISIN, PEAK and VALVOLINE supply 3 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 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

3 Coolant Reservoir Cap parts are listed for the 2024 Audi A6, from CALORSTAT, MOTORAD and ÜRO PARTS. 2 parts fit every engine; the other 1 is engine-specific.

Listed part numbers: CALORSTAT RC0162, MOTORAD T111 and ÜRO PARTS 4M0121321Q.

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

5 Intercooler parts for the 2024 Audi A6 come from 4 brands — NISSENS, GPD, HELLA and 1 other brand.

This group includes GPD 2711413, HELLA 366340871 and NISSENS 961466 and the remaining parts above.

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

8 Radiator parts for the 2024 Audi A6 come from 5 brands — UAC, CSF, NISSENS and 2 other brands. The "Popular" part is UAC RA13665C.

The Economy section: 1 option from VEMO. VEMO V10600108 is listed in this group.

Standard Replacement: 4 parts, from UAC, CSF, NISSENS and 1 other brand. A representative part number is UAC RA13665C.

3 further parts sit outside the graded sections, with the same engine-level match.

This group includes UAC RA13665C, VEMO V10600108 and CSF 4030 and the remaining parts 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 Insulator sleeves. Read more

One part is listed for the 2024 Audi A6 — 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 2024 Audi A6 — 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 2024 Audi A6 come from 6 brands — GPD, HOLSTEIN, STANDARD MOTOR PRODUCTS and 3 other brands. The "Popular" part is HOLSTEIN 2CTS0163. 3 parts fit every engine; the other 4 are engine-specific.

The Economy section: 3 options from GPD and HOLSTEIN. HOLSTEIN 2CTS0163 is listed in this group.

Standard Replacement: 4 parts, from STANDARD MOTOR PRODUCTS, NISSENS, VNE and 1 other brand. A representative part number is STANDARD MOTOR PRODUCTS TX275.

This group includes HOLSTEIN 2CTS0163, GPD 1712644 and GPD 1814521 and the remaining parts 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

4 Thermostat parts are listed for the 2024 Audi A6, from VEMO, BECK/ARNLEY, CALORSTAT and 1 other brand.

Economy: 1 part, from VEMO. A representative part number is VEMO V15992133.

The Standard Replacement section: 1 option from BECK/ARNLEY. BECK/ARNLEY 1430913 is listed in this group.

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

Listed part numbers: VEMO V15992133, BECK/ARNLEY 1430913 and CALORSTAT TE7367103J, plus the other 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

This group shows a single part: MAHLE / CLEVITE 72622.