The 2021 Audi RS Q3 has 6 drivetrain parts with verified fitment on this page — 4 part types and 3 brands, covering the 2.5L L5 Turbocharged engine. Each part includes a manufacturer part number and application notes.
On the 2021 Audi RS Q3, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. Most of the listed parts are Differential Seal (3 parts), AWD Coupling Oil Filter (1 part) and CV Joint (1 part). The other 1 part type covers the remaining 1 part.
Every part on this page is matched to the 2.5L L5 Turbocharged — the only engine offered in the 2021 Audi RS Q3.
The most listed brands for 2021 Audi RS Q3 drivetrain parts are ELRING (4 parts), VAICO (1 part) and MARELLI (1 part).
Each part number listed for the 2021 Audi RS Q3 opens a page with every vehicle that part fits.
AWD Coupling Oil Filter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VAICO | V106662 | 🇲🇽 MX | View on Amazon |
This table covers the AWD Coupling Oil filters. Typical signs include restricted flow — long cranking, weak airflow, or dirty fluid after a short interval. Seat the new filter so it cannot bypass, and use the grade the notes call for.
This group shows a single part: VAICO V106662.
CV Joint
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MARELLI | TOJ0312 | 🇲🇽 MX | Front | View on Amazon |
This table covers the constant-velocity joints at each end of a drive axle.
This group shows a single part: MARELLI TOJ0312.
Differential Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING | 877460 | 🇲🇽 MX | Dust Cover: without dust LipSwirl Type: Alternating Twist | View on Amazon |
| ELRING | 871180 | 🇲🇽 MX | Dust Cover: with dust LipInner Diameter [MM]: 67 | View on Amazon |
| ELRING | 914240 | 🇲🇽 MX | Dust Cover: with dust LipHeight [MM]: 8 | View on Amazon |
This table covers the seals at the Differential. 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.
ELRING supplies the 3 Differential Seal parts for the 2021 Audi RS Q3.
Listed part numbers: ELRING 877460, ELRING 871180 and ELRING 914240.
Transfer Case Input Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING | 871070 | 🇲🇽 MX | Swirl Type: Left-hand Twist | View on Amazon |
This table covers the seals at the Transfer Case Input Shaft. 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.
One part is listed for the 2021 Audi RS Q3 — ELRING 871070.
Buying Drivetrain Parts for a 2021 Audi RS Q3
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 2.5L L5 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: Differential Seal and AWD Coupling Oil Filter .
Frequently Asked Questions
How many drivetrain parts fit the 2021 Audi RS Q3?
Our catalog currently lists 6 drivetrain parts for the 2021 Audi RS Q3 across 4 subcategories and 3 brands, covering the 2.5L L5 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of drivetrain problems on a 2021 Audi RS Q3?
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 2021 Audi RS Q3 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 2021 Audi RS Q3?
Every part on this page is matched to the 2.5L L5 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 2021 Audi RS Q3
Drivetrain Parts for Other Audi RS Q3 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.