19 Drivetrain parts are listed for the 2023 Audi A3, in 5 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 2023 Audi A3, 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 CV Axle (11 parts), Transfer Case Fluid (3 parts) and CV Joint (2 parts). The other 2 part types cover the remaining 3 parts.
The 2023 Audi A3 was sold with both the 1.4L L4 Turbocharged and the 2.0L L4 Turbocharged. 1 part fits every engine; the other 18 are engine-specific. Each part shows which engine(s) it fits.
7 brands supply drivetrain parts for the 2023 Audi A3, led by GSP (6 parts), TOP NOTCH (4 parts) and GKN (3 parts), plus 4 more brands. Quality grades include Standard Replacement and Premium.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2023 Audi A3. 3 parts have it, including TOP NOTCH TN19290 (CV Axle) and TOP NOTCH TN19037 (CV Axle). Each part number opens a page with every vehicle that part fits.
AWD Coupling Fluid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REIN Fits: 2.0L L4 Turbocharged | FLDF003 | 🇺🇸 US 🇨🇦 CA | A3 QuattroHaldex | 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 2023 Audi A3 — REIN FLDF003.
CV Axle
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GSP Fits: 2.0L L4 Turbocharged | PR23021 | 🇺🇸 US 🇨🇦 CA | Performance Revolution | View on Amazon |
| GSP Fits: 2.0L L4 Turbocharged | PR72026 | 🇺🇸 US 🇨🇦 CA | Performance Revolution | View on Amazon |
| TOP NOTCH Fits: 2.0L L4 Turbocharged | TN19112PR | 🇺🇸 US 🇨🇦 CA | Performance | View on Amazon |
| TOP NOTCH Fits: 2.0L L4 Turbocharged | TN19015PR | 🇺🇸 US 🇨🇦 CA | Performance | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TOP NOTCH Popular Fits: 2.0L L4 Turbocharged | TN19290 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Left | View on Amazon |
| TOP NOTCH Popular Fits: 2.0L L4 Turbocharged | TN19037 | 🇺🇸 US 🇨🇦 CA | Front RightA3 Quattro | View on Amazon |
| TRAKMOTIVE Popular Fits: 2.0L L4 Turbocharged | AD8148 | 🇺🇸 US 🇲🇽 MX | Front RightA3 Base Model | View on Amazon |
| GSP Fits: 2.0L L4 Turbocharged | NCV23081 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Left | View on Amazon |
| GSP Fits: 2.0L L4 Turbocharged | NCV23049K | 🇺🇸 US 🇨🇦 CA | Front RightA3 Quattro | View on Amazon |
| GSP Fits: 2.0L L4 Turbocharged | NCV23021 | 🇺🇸 US 🇨🇦 CA | Rear LeftA3 Quattro | View on Amazon |
| GSP Fits: 2.0L L4 Turbocharged | NCV72026 | 🇺🇸 US 🇨🇦 CA | Rear RightA3 Quattro | View on Amazon |
This table covers the complete CV axle shafts from differential (or hub) to wheel. Typical signs include a click in tight turns, grease flung around the wheel well, or a vibration that builds with speed. A torn boot caught early is a boot kit; caught late it is the whole axle. Torque the axle nut to the method in the notes.
11 CV Axle parts are listed for the 2023 Audi A3, from GSP, TOP NOTCH and TRAKMOTIVE. TOP NOTCH TN19290 carries the "Popular" badge.
The Premium section lists 4 options from GSP and TOP NOTCH — a step above OE specification in materials, tolerances or warranty terms. GSP PR23021 is listed in this group.
The Standard Replacement section lists 7 options from GSP, TOP NOTCH and TRAKMOTIVE — built to original-equipment specification. TOP NOTCH TN19290 is listed in this group.
CV Joint
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GKN Fits: 2.0L L4 Turbocharged | 305448 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pre-lubricatedThermosplastic Elastomer (TPE) | View on Amazon |
| GKN Fits: 2.0L L4 Turbocharged | 306653 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OUTER Diameter 1.259 In | View on Amazon |
This table covers the constant-velocity joints at each end of a drive axle.
GKN supplies both parts for the 2023 Audi A3.
This group includes GKN 305448 and GKN 306653.
CV Joint Boot
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Fits: all 2023 A3 engines | 1033193 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front Inner | View on Amazon |
| GKN Fits: 2.0L L4 Turbocharged | 305967 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Length: 123 mmThermoplastic Elastomer | 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.
2 CV Joint Boot parts are listed for the 2023 Audi A3, from BECK/ARNLEY and GKN. 1 part fits every engine; the other 1 is engine-specific.
Listed part numbers: BECK/ARNLEY 1033193 and GKN 305967.
Transfer Case Fluid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VAICO Fits: 1.4L L4 Turbocharged | V600430 | 🇲🇽 MX | Transfer Case Oil DTF-1 L | View on Amazon |
| VAICO Fits: 1.4L L4 Turbocharged | V600431 | 🇲🇽 MX | Grade: AMTransfer Case Fluid, DTF-1 - 5 Liter | View on Amazon |
| VAICO Fits: 1.4L L4 Turbocharged | V600432 | 🇲🇽 MX | Grade: OEMTransfer Case Oil DTF-1-20 L | 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.
VAICO supplies the 3 Transfer Case Fluid parts for the 2023 Audi A3.
Listed part numbers: VAICO V600430, VAICO V600431 and VAICO V600432.
Buying Drivetrain Parts for a 2023 Audi A3
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. Some drivetrain 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 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: CV Axle and Transfer Case Fluid .
Frequently Asked Questions
How many drivetrain parts fit the 2023 Audi A3?
Our catalog currently lists 19 drivetrain parts for the 2023 Audi A3 across 5 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 2023 Audi A3 engines?
Some do. 1 part fits every engine; the other 18 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 drivetrain problems on a 2023 Audi A3?
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 2023 Audi A3 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 2023 Audi A3?
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 2023 Audi A3
Drivetrain Parts for Other Audi A3 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.