2015 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

16 Coolant / Antifreeze parts for the 2015 Audi A6 come from 6 brands — PRESTONE, PEAK, PENTOSIN and 3 other brands. The "Popular" part is FVP MV5050GAL. Every part fits all 3 engine options (2.0L L4 Turbocharged, 3.0L V6 DIESEL Turbocharged and 3.0L V6 Supercharged).

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

8 Coolant Hose / Pipe parts for the 2015 Audi A6 come from 3 brands — REIN, SKP and ÜRO PARTS. The "Popular" part is REIN CHE0705.

Listed part numbers: REIN CHE0705, REIN CHC0712 and REIN CHP0990, plus the other parts above.

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 2015 Audi A6, 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.

Part numbers include MAHLE / CLEVITE C32208, VICTOR REINZ 411047900 and DORMAN 47451, among others listed above.

This table covers the Coolant Hose Connector flanges. Read more

10 Coolant Hose Connector / Flange parts for the 2015 Audi A6 come from 6 brands — ÜRO PARTS, MOTORAD, VAICO and 3 other brands. The "Popular" part is DORMAN 627006.

The Economy section: 5 options from ÜRO PARTS, DORMAN and SKP. DORMAN 627006 is listed in this group.

Standard Replacement: 5 parts, from MOTORAD, VAICO and REIN. A representative part number is MOTORAD CH8714.

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 2015 Audi A6.

Part numbers include 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 Coolant Hose retainers and clips. Read more

This group shows a single part: BECK/ARNLEY 1470039.

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

6 Coolant Reservoir parts are listed for the 2015 Audi A6, from REIN, GPD, MAHLE / CLEVITE and 2 other brands. REIN EPT0191 carries the "Popular" badge. 5 parts fit every engine; the other 1 is engine-specific.

This group includes REIN EPT0191, REIN EPK0191 and GPD 2411310 and the remaining 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

6 Coolant Reservoir Cap parts are listed for the 2015 Audi A6, from GATES, MOTORAD, CALORSTAT and 3 other brands. GATES 31529 carries the "Popular" badge. All of them fit every engine offered in the 2015 A6.

Listed part numbers: GATES 31529, MOTORAD T49 and CALORSTAT RC0011, plus the other parts above.

This table covers the Cooling Fan control modules. Read more

4 Cooling Fan Control Module parts are listed for the 2015 Audi A6, from GATES, ULTRA-POWER, ÜRO PARTS and 1 other brand. 1 part fits every engine; the other 3 are engine-specific.

This group includes GATES FCM157, ULTRA-POWER RY1904 and ÜRO PARTS 8K0959501G and the remaining parts above.

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

4 Cooling System Tester Adapter parts for the 2015 Audi A6 come from 2 brands — GATES and MOTORAD. Every part fits all 3 engine options (2.0L L4 Turbocharged, 3.0L V6 DIESEL Turbocharged and 3.0L V6 Supercharged).

This group includes GATES 31433, GATES 31434 and MOTORAD 3036 and the remaining parts above.

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

16 Intercooler parts for the 2015 Audi A6 come from 10 brands — NISSENS, SPECTRA PREMIUM, TYC and 7 other brands. The "Popular" part is NISSENS 96567. 1 part fits every engine; the other 15 are engine-specific.

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 2015 Audi A6 — AJUSA 01260100.

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

30 Radiator parts for the 2015 Audi A6 come from 12 brands — MAHLE / CLEVITE, NISSENS, GPD and 9 other brands. The "Popular" part is CSF 3518. They are grouped as Economy and Standard Replacement, with Standard Replacement the largest group at 26 parts from MAHLE / CLEVITE, NISSENS, OSC and 8 other brands.

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

11 Radiator Fan Assembly parts are listed for the 2015 Audi A6, from GPD, VEMO, TYC and 3 other brands. TYC 622940 carries the "Popular" badge.

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

The Standard Replacement section: 7 options from TYC, MAHLE / CLEVITE, NISSENS and 1 other brand. TYC 622940 is listed in this group.

This table covers the Radiator Fan motors. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor. Read more

2 Radiator Fan Motor parts for the 2015 Audi A6 come from VEMO.

Part numbers include VEMO V10010001 and VEMO V10010003.

This table covers the Radiator insulators. Read more

VNE supplies the 3 Radiator Insulator parts for the 2015 Audi A6.

Listed part numbers: VNE 41000034, VNE 41000036 and VNE 41000078.

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 2015 Audi A6.

Part numbers include REIN AVM0702 and REIN AVM0742.

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

20 Temperature Sender / Sensor parts for the 2015 Audi A6 come from 16 brands — STANDARD MOTOR PRODUCTS, GPD, VEMO and 13 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS TS608T.

The Economy section: 9 options from GPD, VEMO, STANDARD MOTOR PRODUCTS and 4 other brands. STANDARD MOTOR PRODUCTS TS608T is listed in this group.

Standard Replacement: 11 parts, from FACET, BECK/ARNLEY, STANDARD MOTOR PRODUCTS and 7 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

30 Thermostat parts are listed for the 2015 Audi A6, from FACET, MOTORAD, VEMO and 8 other brands. FACET 78743K carries the "Popular" badge. Economy and Standard Replacement are all represented, and Standard Replacement alone accounts for 26 parts.

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

14 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2015 Audi A6 come from 9 brands — ELRING, FEL-PRO, MAHLE / CLEVITE and 6 other brands. The "Popular" part is FEL-PRO 35924.

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

7 Thermostat Housing / Water Outlet parts are listed for the 2015 Audi A6, from FOUR SEASONS, MOTORAD, DORMAN and 1 other brand. DORMAN 9025866 carries the "Popular" badge.

Economy: 2 parts, from DORMAN and SKP. A representative part number is DORMAN 9025866.

The Standard Replacement section: 5 options from FOUR SEASONS and MOTORAD. FOUR SEASONS 86002 is listed in this group.

This group includes DORMAN 9025866, SKP SK9025866 and FOUR SEASONS 86002 and the remaining parts 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

12 Water Pump parts are listed for the 2015 Audi A6, from BECK/ARNLEY, CARDONE, FVP and 9 other brands. BECK/ARNLEY 1312499 carries the "Popular" badge.

Economy: 6 parts, from BECK/ARNLEY, CARDONE, FVP and 3 other brands. A representative part number is BECK/ARNLEY 1312499.

The Standard Replacement section: 6 options from GATES, GMB, GRAF and 3 other brands. GATES 41578E is listed in this group.

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

6 Water Pump Gasket parts for the 2015 Audi A6 come from 5 brands — ELRING, FEL-PRO, BECK/ARNLEY and 2 other brands. The "Popular" part is ELRING 236880.

Part numbers include ELRING 236880, FEL-PRO 35872 and BECK/ARNLEY 0394172, among others listed above.