This page lists 10 drivetrain parts for the 2018 Audi A4 Allroad, across 2 part types, covering the 2.0L L4 Turbocharged engine. Every part shows its brand, manufacturer part number and fitment notes.
The drivetrain system on the 2018 Audi A4 Allroad moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. All 10 listed parts are AWD Coupling Fluid (8 parts) and Axle Shaft Seal (2 parts).
The 2018 Audi A4 Allroad came with a single engine, the 2.0L L4 Turbocharged, and every part is verified against it.
2 brands supply drivetrain parts for the 2018 Audi A4 Allroad, led by VALVOLINE (8 parts) and TIMKEN (2 parts).
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2018 Audi A4 Allroad. 2 parts have it, including VALVOLINE VV982 (AWD Coupling Fluid) and VALVOLINE VV975 (AWD Coupling Fluid). Each part number opens a page with every vehicle that part fits.
AWD Coupling Fluid
SAE 75W-140
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular | VV982 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-14 0 Gear Oil1 Quart | View on Amazon |
| VALVOLINE | 889787 | 🇺🇸 US 🇨🇦 CA | Full Synthetic SAE 75W-14 0 Gear Oil1 Quart Flex Fill | View on Amazon |
| VALVOLINE | 887344 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-14 0 Gear Oil1 Gallon | View on Amazon |
| VALVOLINE | VV981 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-14 0 Gear Oil5 Gallon | View on Amazon |
SAE 75W-90
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular | VV975 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Quart | View on Amazon |
| VALVOLINE | 889785 | 🇺🇸 US 🇨🇦 CA | Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill | View on Amazon |
| VALVOLINE | 882505 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Gallon | View on Amazon |
| VALVOLINE | 723856 | 🇺🇸 US 🇨🇦 CA | Advanced Full Synthetic SAE 75W-90 Gear Oil5 Gallon | View on Amazon |
This table covers the AWD Coupling fluids. Typical signs include discolored fluid, a burnt smell, or a level that keeps dropping. Use only the specification in the notes — the tables group grades because they are not interchangeable.
VALVOLINE supplies the 8 AWD Coupling Fluid parts for the 2018 Audi A4 Allroad. VALVOLINE VV982 carries the "Popular" badge.
In the SAE 75W-140 grade, VALVOLINE supplies 4 parts: grouped under the catalog's "SAE 75W-140" designation — the notes column spells out what sets them apart. A representative part number is VALVOLINE VV982.
In the SAE 75W-90 grade, VALVOLINE supplies 4 parts: grouped under the catalog's "SAE 75W-90" designation — the notes column spells out what sets them apart. A representative part number is VALVOLINE VV975.
This group includes VALVOLINE VV982, VALVOLINE 889787 and VALVOLINE 887344 and the remaining parts above.
Axle Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TIMKEN | SL260526 | 🇺🇸 US 🇨🇦 CA | Rear Left | View on Amazon |
| TIMKEN | SL260529 | 🇺🇸 US 🇨🇦 CA | Rear Right | View on Amazon |
This table covers the seals where an axle shaft exits the housing. 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.
TIMKEN supplies both parts for the 2018 Audi A4 Allroad.
Part numbers include TIMKEN SL260526 and TIMKEN SL260529.
Buying Drivetrain Parts for a 2018 Audi A4 Allroad
On this vehicle, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.
- Confirm you have the 2.0L L4 Turbocharged engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the differential or transfer-case fluid with any axle or seal job while everything is already open.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: AWD Coupling Fluid and Axle Shaft Seal .
Frequently Asked Questions
How many drivetrain parts fit the 2018 Audi A4 Allroad?
Our catalog currently lists 10 drivetrain parts for the 2018 Audi A4 Allroad across 2 subcategories and 2 brands, covering the 2.0L L4 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of drivetrain problems on a 2018 Audi A4 Allroad?
Common symptoms include clicking in tight turns, a clunk when shifting between drive and reverse, vibration that builds with speed, or gear oil on the inside of a wheel. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the differential or transfer-case fluid with any axle or seal job while everything is already open.
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 2018 Audi A4 Allroad 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 2018 Audi A4 Allroad?
Every part on this page is matched to the 2.0L L4 Turbocharged engine. Then a torn CV boot caught early is a cheap boot kit; caught late it is a whole axle — inspect before deciding which to buy. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2018 Audi A4 Allroad
Drivetrain Parts for Other Audi A4 Allroad Years
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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.