30 Drivetrain parts are listed for the 2025 Audi Q3, in 9 part types, covering both the 1.4L L4 Turbocharged and the 2.0L L4 Turbocharged. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2025 Audi 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 Gear Oil (7 parts), Transfer Case Fluid (7 parts) and Differential Seal (5 parts). The other 6 part types cover the remaining 11 parts.
The 2025 Audi Q3 was sold with both the 1.4L L4 Turbocharged and the 2.0L L4 Turbocharged. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
7 brands supply drivetrain parts for the 2025 Audi Q3, led by VALVOLINE (14 parts), ELRING (6 parts) and GKN (5 parts), plus 4 more brands.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2025 Audi Q3. 5 parts have it, including ELRING 454820 (Differential Seal) and VALVOLINE VV975 (Gear Oil). Each part number opens a page with every vehicle that part fits.
4WD Actuator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VAICO Fits: 2.0L L4 Turbocharged | V108958 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Grade: Q+ | View on Amazon |
This table covers the actuators that engage four-wheel drive at the transfer case or axle. Typical signs include a door or range that will not move, or a click with no motion. Confirm the command signal before replacing the actuator — a failed module looks the same.
This group shows a single part: VAICO V108958.
AWD Coupling Fluid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REIN Fits: 2.0L L4 Turbocharged | FLDF003 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Haldex850 ml | 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.
One part is listed for the 2025 Audi Q3 — REIN FLDF003.
CV Joint
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GKN Fits: 2.0L L4 Turbocharged | 306193 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OUTER Diameter 4.133 In | View on Amazon |
| GKN Fits: 2.0L L4 Turbocharged | 305021 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermoplastic Elastomer | View on Amazon |
This table covers the constant-velocity joints at each end of a drive axle.
GKN supplies both parts for the 2025 Audi Q3.
Listed part numbers: GKN 306193 and GKN 305021.
CV Joint Boot
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GKN Fits: 2.0L L4 Turbocharged | 306131 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermoplastic ElastomerThermosplastic Elastomer (TPE) | View on Amazon |
| GKN Fits: 2.0L L4 Turbocharged | 305882 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OUTER Diameter 1.102 InThermoplastic Elastomer | View on Amazon |
| GKN Fits: 2.0L L4 Turbocharged | GKNB20607 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermoplastic Elastomer | View on Amazon |
| REIN Fits: 2.0L L4 Turbocharged | BKN0109 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Outer | View on Amazon |
This table covers the boots that keep grease in a CV joint. Typical signs include a split boot, grease flung around the joint, or a click once grit is inside. A boot caught early is a kit. Once the joint has clicked, the joint itself is usually worn.
4 CV Joint Boot parts are listed for the 2025 Audi Q3, from GKN and REIN.
Part numbers include GKN 306131, GKN 305882 and GKN GKNB20607, among others listed above.
Differential Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Popular Fits: 2.0L L4 Turbocharged | 454820 | 🇨🇦 CA | Inside Diameter: 60.0 mmOutside Diameter: 74.0 mm | View on Amazon |
| ELRING Fits: 2.0L L4 Turbocharged | 852060 | 🇨🇦 CA | Height [MM]: 7Radial Shaft Seal Design: AS2W | View on Amazon |
| ELRING Fits: 2.0L L4 Turbocharged | 877460 | 🇨🇦 CA | Dust Cover: without dust LipSwirl Type: Alternating Twist | View on Amazon |
| ELRING Fits: 2.0L L4 Turbocharged | 871180 | 🇨🇦 CA | Dust Cover: with dust LipInner Diameter [MM]: 67 | View on Amazon |
| ELRING Fits: 2.0L L4 Turbocharged | 914240 | 🇨🇦 CA | 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.
5 Differential Seal parts for the 2025 Audi Q3 come from ELRING. The "Popular" part is ELRING 454820.
Part numbers include ELRING 454820, ELRING 852060 and ELRING 877460, among others listed above.
Drive Shaft
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GSP Fits: 2.0L L4 Turbocharged | PS902033 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | View on Amazon |
| TOP NOTCH Fits: 2.0L L4 Turbocharged | TN2324PS | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | View on Amazon |
This table covers the driveshafts that carry torque from the transmission or transfer case.
2 Drive Shaft parts for the 2025 Audi Q3 come from 2 brands — GSP and TOP NOTCH.
Part numbers include GSP PS902033 and TOP NOTCH TN2324PS.
Gear Oil
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: 2.0L L4 Turbocharged | VV975 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Quart | View on Amazon |
| VALVOLINE Popular Fits: 2.0L L4 Turbocharged | 889785 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill | View on Amazon |
| VALVOLINE Fits: 2.0L L4 Turbocharged | 882505 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Gallon | View on Amazon |
| VALVOLINE Fits: 2.0L L4 Turbocharged | 723856 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-90 Gear Oil5 Gallon | View on Amazon |
| VALVOLINE Fits: 2.0L L4 Turbocharged | 819195 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | VPS Full Synthetic SAE 75W-90 Gear Oil1 Quart | View on Amazon |
| VALVOLINE Fits: 2.0L L4 Turbocharged | 902146 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Extended Protection Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill | View on Amazon |
| VALVOLINE Fits: 2.0L L4 Turbocharged | 904644 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | VPS Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill | View on Amazon |
This table covers the gear oils specified for the axle or transfer case. Typical signs include a low-oil lamp, knocking, or oil that has gone thin before the next interval. Match the viscosity and spec in the notes, not just the weight on the bottle.
VALVOLINE supplies the 7 Gear Oil parts for the 2025 Audi Q3. VALVOLINE VV975 carries the "Popular" badge.
This group includes VALVOLINE VV975, VALVOLINE 889785 and VALVOLINE 882505 and the remaining parts above.
Transfer Case Fluid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Popular Fits: 2.0L L4 Turbocharged | VV975 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Quart | View on Amazon |
| VALVOLINE Popular Fits: 2.0L L4 Turbocharged | 889785 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill | View on Amazon |
| VALVOLINE Fits: 2.0L L4 Turbocharged | 882505 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-90 Gear Oil1 Gallon | View on Amazon |
| VALVOLINE Fits: 2.0L L4 Turbocharged | 723856 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Advanced Full Synthetic SAE 75W-90 Gear Oil5 Gallon | View on Amazon |
| VALVOLINE Fits: 2.0L L4 Turbocharged | 819195 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | VPS Full Synthetic SAE 75W-90 Gear Oil1 Quart | View on Amazon |
| VALVOLINE Fits: 2.0L L4 Turbocharged | 902146 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Extended Protection Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill | View on Amazon |
| VALVOLINE Fits: 2.0L L4 Turbocharged | 904644 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | VPS Full Synthetic SAE 75W-90 Gear Oil1 Quart Flex Fill | View on Amazon |
This table covers the fluids specified for the transfer case. 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 7 Transfer Case Fluid parts for the 2025 Audi Q3. VALVOLINE VV975 carries the "Popular" badge.
Listed part numbers: VALVOLINE VV975, VALVOLINE 889785 and VALVOLINE 882505, plus the other parts above.
Transfer Case Input Shaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 2.0L L4 Turbocharged | 871070 | 🇨🇦 CA | 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.
This group shows a single part: ELRING 871070.
Buying Drivetrain Parts for a 2025 Audi Q3
On this vehicle, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.
- Match the engine first. Every drivetrain part here is 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 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: Gear Oil and Transfer Case Fluid .
Frequently Asked Questions
How many drivetrain parts fit the 2025 Audi Q3?
Our catalog currently lists 30 drivetrain parts for the 2025 Audi Q3 across 9 subcategories and 7 brands, covering both the 1.4L L4 Turbocharged and the 2.0L L4 Turbocharged. Each part is matched to the engine(s) it fits.
Do drivetrain parts differ between 2025 Audi Q3 engines?
Yes. Every drivetrain part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. 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 drivetrain problems on a 2025 Audi 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 2025 Audi 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 2025 Audi Q3?
First match the engine — each row shows which engine(s) the part fits. 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 2025 Audi Q3
Drivetrain Parts for Other Audi 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.