This page lists 16 engine parts for the 2026 Audi A6, across 5 part types, covering both the 2.0L L4 Turbocharged and the 3.0L V6 Turbocharged. Every part shows its brand, manufacturer part number and fitment notes.
The engine on the 2026 Audi A6 covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components. The largest groups are Oil (7 parts), Oil Filter (5 parts) and Oil Drain Plug (2 parts). The other 2 part types cover the remaining 2 parts.
The 2026 Audi A6 was sold with both the 2.0L L4 Turbocharged and the 3.0L V6 Turbocharged. 1 part fits every engine; the other 15 are engine-specific. Each part shows which engine(s) it fits.
7 brands supply engine parts for the 2026 Audi A6, led by PENTOSIN (6 parts), MOBIL (3 parts) and REIN (3 parts), plus 4 more brands.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2026 Audi A6. 2 parts have it, including MOBIL 125386 (Oil) and PENTOSIN 8042206 (Oil). Each part number opens a page with every vehicle that part fits.
Oil
Summary: Notes list SAE 0W-20, SAE 5W-30 and SAE 5W-40. Confirm the engine and the weight on the filler cap before you buy. Replacement brands in this table include PENTOSIN and MOBIL.
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOBIL Popular Fits: 3.0L V6 Turbocharged | 125386 | 🇺🇸 US 🇨🇦 CA | ESP X2 0W-20ESP X2 Full Synthetic Motor Oil 0W-20, 1 Quart | View on Amazon |
| PENTOSIN Popular Fits: 3.0L V6 Turbocharged | 8042206 | 🇺🇸 US 🇨🇦 CA | High Performance IIFull Synthetic | View on Amazon |
| PENTOSIN Fits: 3.0L V6 Turbocharged | 8044107 | 🇺🇸 US 🇨🇦 CA | Pento SpeedFull Synthetic | View on Amazon |
| PENTOSIN Fits: 3.0L V6 Turbocharged | 8042107 | 🇺🇸 US 🇨🇦 CA | High Performance IIFull Synthetic | View on Amazon |
| PENTOSIN Fits: 3.0L V6 Turbocharged | 8078106 | 🇺🇸 US 🇨🇦 CA | Super Performance IIIFull Synthetic | View on Amazon |
| PENTOSIN Fits: 3.0L V6 Turbocharged | 8078206 | 🇺🇸 US 🇨🇦 CA | Super Performance IIIFull Synthetic | View on Amazon |
| PENTOSIN Fits: 3.0L V6 Turbocharged | 8044206 | 🇺🇸 US 🇨🇦 CA | Pento SpeedFull Synthetic | View on Amazon |
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.
7 Oil parts for the 2026 Audi A6 come from 2 brands — PENTOSIN and MOBIL. The "Popular" part is MOBIL 125386.
Listed part numbers: MOBIL 125386, PENTOSIN 8042206 and PENTOSIN 8044107, plus the other parts above.
Oil Drain Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REIN Fits: 3.0L V6 Turbocharged | HWP1014 | 🇺🇸 US 🇨🇦 CA | Steel | View on Amazon |
| REIN Fits: 3.0L V6 Turbocharged | HWU1014 | 🇺🇸 US 🇨🇦 CA | Aluminum | View on Amazon |
This table covers the drain plugs in the oil pan.
2 Oil Drain Plug parts for the 2026 Audi A6 come from REIN.
Part numbers include REIN HWP1014 and REIN HWU1014.
Oil Filter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MANN Fits: 3.0L V6 Turbocharged | HU7049Z | 🇺🇸 US 🇨🇦 CA | Class: C | View on Amazon |
| MOBIL Fits: 2.0L L4 Turbocharged | M1C258A | 🇲🇽 MX | Extended PerformanceStyle: Cartridge Lube Metal Free Filter | View on Amazon |
| MOBIL Fits: 2.0L L4 Turbocharged | M1C258 | 🇲🇽 MX | Extended Performance15,000 Mile Warranty | View on Amazon |
| PUROLATOR Fits: 3.0L V6 Turbocharged | PL21507 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WIX Fits: 3.0L V6 Turbocharged | WL10438 | 🇺🇸 US 🇨🇦 CA | Synthetic Media | View on Amazon |
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.
5 Oil Filter parts for the 2026 Audi A6 come from 4 brands — MOBIL, MANN, PUROLATOR and 1 other brand.
Part numbers include MANN HU7049Z, MOBIL M1C258A and MOBIL M1C258, among others listed above.
Oil Level Sensor Gasket / O-Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: all 2026 A6 engines | 01899000 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | A6 Quattro | View on Amazon |
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.
This group shows a single part: AJUSA 01899000.
Oil Pan
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REIN Fits: 2.0L L4 Turbocharged | ESK0240 | 🇲🇽 MX | Kit | View on Amazon |
This table covers the oil pans that hold the engine's oil sump.
One part is listed for the 2026 Audi A6 — REIN ESK0240.
Buying Engine Parts for a 2026 Audi A6
On this vehicle, the engine covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components.
- Match the engine first. Some engine parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Oil and Oil Filter .
Frequently Asked Questions
How many engine parts fit the 2026 Audi A6?
Our catalog currently lists 16 engine parts for the 2026 Audi A6 across 5 subcategories and 7 brands, covering both the 2.0L L4 Turbocharged and the 3.0L V6 Turbocharged. Each part is matched to the engine(s) it fits.
Do engine parts differ between 2026 Audi A6 engines?
Some do. 1 part fits every engine; the other 15 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of engine problems on a 2026 Audi A6?
Common symptoms include oil spots under the vehicle, blue or white exhaust smoke, ticking from the valvetrain, or coolant mysteriously disappearing. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What oil viscosity is listed for the 2026 Audi A6?
Oil rows on this page include SAE 0W-20, SAE 5W-30 and SAE 5W-40. Confirm the engine and the weight on the filler cap before you buy — high-mileage and standard fills can differ.
What should I replace at the same time?
Where labor overlaps, replace the seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2026 Audi A6 was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2026 Audi A6?
First match the engine — each row shows which engine(s) the part fits. Then engine hard parts are unforgiving of guesswork — confirm the casting or engine code before ordering, because one model year can hide two different blocks. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2026 Audi A6
Engine Parts for Other Audi A6 Years
Switch vehicle or jump to a subcategory
Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.