2025 Audi A6 Allroad Engine Parts

This table covers the front and rear seals that keep oil in at the crankshaft. 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 67830.

This table covers the head gaskets that seal the block to the cylinder head. 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

MAHLE / CLEVITE supplies both parts for the 2025 Audi A6 Allroad.

Part numbers include MAHLE / CLEVITE 55545 and MAHLE / CLEVITE 55546.

This table covers the engine oils listed by grade and specification for this engine. Typical signs include a low-oil lamp, knocking after a long interval, or oil that has gone thin and black well before the next service. Match the viscosity and spec in the notes (and on the filler cap). The tables group grades — they are not interchangeable. Read more

12 Oil parts for the 2025 Audi A6 Allroad come from 5 brands — PENTOSIN, LIQUI MOLY, MOBIL and 2 other brands. The "Popular" part is MOBIL 125386.

This table covers the heat exchangers that cool engine oil. Typical signs include oil at the cooler fittings, or coolant that looks like a milkshake. Pressure-test both circuits after a cooler swap — a leak here mixes oil and coolant. Read more

2 Oil Cooler parts for the 2025 Audi A6 Allroad come from 2 brands — DORMAN and NISSENS.

Part numbers include DORMAN 918948 and NISSENS 91445.

This table covers the drain plugs in the oil pan. Read more

2 Oil Drain Plug parts for the 2025 Audi A6 Allroad come from REIN.

Listed part numbers: REIN HWP1014 and REIN HWU1014.

This table covers the caps on the oil filler neck. Read more

This group shows a single part: MOTORAD MO153.

This table covers the oil filters that screw onto this engine's filter mount. Typical signs include low oil pressure after a service, or a filter that will not spin off because the old gasket stayed on the block. Lube the new gasket and tighten to the spec on the box; a double-gasket install dumps the sump on the first drive. Read more

7 Oil Filter parts for the 2025 Audi A6 Allroad come from 7 brands — CHAMP / LUBER-FINER, HENGST, WIX and 4 other brands. The "Popular" part is HENGST E914HD398.

The Economy section lists 1 option from CHAMP / LUBER-FINER — the catalog's value-priced group. CHAMP / LUBER-FINER P1074 is listed in this group.

In the Standard Replacement grade, HENGST, WIX, ACDELCO and 3 other brands supply 6 parts: built to original-equipment specification. A representative part number is HENGST E914HD398.

Part numbers include HENGST E914HD398, CHAMP / LUBER-FINER P1074 and WIX WL10438, among others listed above.

This table covers the Oil Filter covers. Read more

One part is listed for the 2025 Audi A6 Allroad — MOTORAD MO374.

This table covers the Oil Filter housings. Read more

2 Oil Filter Housing parts are listed for the 2025 Audi A6 Allroad, from DORMAN and REIN.

Listed part numbers: DORMAN 926528 and REIN HEU0119.

This table covers the Oil Level Sensor Gasket O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove. Read more

This group shows a single part: AJUSA 01899000.

This table covers the turbochargers that compress intake air. Read more

This group shows a single part: BORG-WARNER 18539880164.

This table covers the seals on each valve stem that control oil into the guides. 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 SS45940A.