Inner CV joints for Audi A3 Sportback
Discover inner CV joints tailored for all variants of the Audi A3 Sportback, from efficient front-wheel-drive petrol models to the high-performance RS3 quattro. Our range covers petrol,...
Products for Inner CV joints for Audi A3 Sportback
- Position: Inner
- Seal diameter: 59 mm
- Inner splines: 33
- Outer splines: 36
- Position: Inner
- Seal diameter: 100 mm
- Inner splines: 33
- Joint diameter: 100 mm
- Position: Inner
- Inner splines: 34
- Outer splines: 37
- Joint diameter: 85 mm
- Position: Front left, Inner
- Seal diameter: 31 mm
- Inner splines: 37
- Total length: 154 mm
- Splines gearbox side: 34
- Position: Front right, Inner
- Seal diameter: 41 mm
- Inner splines: 34
- Total length: 179 mm
- Splines gearbox side: 37
- Position: Rear, Inner
- Diameter: 86 mm
- Splines gearbox side: 33
- Width: 34 mm
- Position: Inner
- Seal diameter: 40 mm
- Inner splines: 34
- Outer splines: 37
- Position: Front right, Inner
- Inner splines: 34
- Splines wheel side: 23
- Position: Inner
- Seal diameter: 59 mm
- Inner splines: 33
- Outer splines: 36
- Position: Inner
- Seal diameter: 100 mm
- Inner splines: 33
- Joint diameter: 100 mm
- Position: Inner
- Inner splines: 34
- Outer splines: 37
- Joint diameter: 85 mm
- Position: Front left, Inner
- Seal diameter: 31 mm
- Inner splines: 37
- Total length: 154 mm
- Splines gearbox side: 34
- Position: Front right, Inner
- Seal diameter: 41 mm
- Inner splines: 34
- Total length: 179 mm
- Splines gearbox side: 37
- Position: Rear, Inner
- Diameter: 86 mm
- Splines gearbox side: 33
- Width: 34 mm
Inner CV joints for Audi A3 Sportback
The Audi A3 Sportback is renowned for combining sporty handling with practical versatility, but maintaining this dynamic feel requires a drivetrain in peak condition. The inner CV joint plays a vital role in this assembly by transferring torque from the gearbox to the drive shaft. Because the Audi A3 Sportback is built on advanced platforms with precise suspension geometry, the tolerances required for the inner joints are exceptionally demanding. A worn inner joint can quickly ruin ride comfort and, in the worst cases, cause consequential damage to other driveline components.
We supply a carefully selected range of inner CV joints that meet or exceed original equipment specifications. We know that Audi owners demand uncompromising quality and durability, which is why we focus exclusively on parts that guarantee an exact fit. Whether your car has a manual gearbox or the popular DSG transmission, we provide the technical specifications required to deliver the correct component. Choosing the right part for your Audi A3 Sportback is essential to avoid unnecessary workshop visits and ensure lasting reliability.
What does an inner CV joint do on the Audi A3 Sportback?
The inner CV joint, often referred to as the inner constant velocity joint, is mounted closest to the gearbox or differential. Unlike the outer CV joint, which primarily accommodates steering angles, the inner joint serves another crucial purpose: managing axial movement. As your Audi A3 Sportback travels over road imperfections, the distance between the gearbox and the wheel hub continuously changes with suspension travel. The inner joint allows the drive shaft to extend and contract (known as "plunging") while rotating at a constant speed.
Many Audi models use either a tripod joint or a ball-type joint internally. Tripod joints are particularly common on automatic variants because they excel at isolating engine vibrations. If this component underperforms, the car loses its characteristic drivetrain smoothness. Because inner CV joints endure massive forces during acceleration—especially on high-torque diesel models or performance editions—their ability to handle heat and friction with premium grease and durable materials is essential for reliable operation.
Common signs of wear
The most classic symptom of a failing inner CV joint on an Audi A3 Sportback is vibration specifically during acceleration. Unlike wheel imbalance, which is typically felt through the steering wheel at certain road speeds regardless of load, inner joint vibrations tend to disappear the moment you lift off the accelerator. These vibrations can resonate throughout the entire bodyshell, often felt as a shaking or shuddering sensation at the front of the vehicle. This occurs because the internal raceways have developed wear grooves or pitting, preventing concentric power transmission under load.
Another common sign is an audible clunk or dull knock when shifting between drive and reverse, or during engine braking. If the CV boot protecting the joint splits, grease is thrown out and abrasive dirt enters. This causes rapid deterioration of the metal contact surfaces. If you spot grease splattered on the underside of the car or around the gearbox casing, the boot has split and the inner CV joint must be inspected or replaced before catastrophic failure occurs.
How to choose the correct inner CV joint
Identifying the correct inner CV joint for an Audi A3 Sportback can be challenging because Audi used several joint variants depending on engine type, gearbox option and model year. There are three key factors to check: the spline count on the shaft, the outer joint diameter, and whether the internal design is a tripod or ball-and-cage assembly. For vehicles fitted with a DSG gearbox, it is particularly crucial to verify the gearbox flange design, as this often differs from manual configurations.
We strongly recommend using our vehicle search to select your make, model and engine. This filters down to the 74 items relevant to your specific car and dramatically eliminates the risk of ordering the wrong part. Also check whether your car features Quattro all-wheel drive, as the rear inner joints differ considerably from the fronts. Paying close attention to these specifications ensures your new joint matches the original dimensions perfectly, allowing the driveshaft to run true and vibration-free for many kilometres to come.
Related parts to inspect
Be sure to check these exact pages for the same vehicle when working on the inner CV joint:
When a driveline component shows signs of wear, neighbouring parts on the same car often require attention as well. By comparing these exact pages for the Audi A3 Sportback, you can more easily determine whether the issue lies purely within the inner CV joint or in an adjoining section of the transmission.
This is especially important on models where vibration, play and noises can transfer between different drivetrain components. A quick look at related categories reduces the risk of replacing one correct part while overlooking an adjacent component contributing to the same problem.
- Audi A3 Sportback
- Drive shafts for Audi A3 Sportback
- Outer CV joints for Audi A3 Sportback
- Propeller shafts for Audi A3 Sportback
Taking a comprehensive look at the entire drivetrain saves time and money over the long term. In some situations, replacing a complete drive shaft can be more cost-effective than renewing only the inner joint if the outer joint is also showing wear. Always remember to use fresh, high-grade CV joint grease and new retaining clamps during installation to give your replacement part the best possible start.
Why buy from CVJoint24?
CVJoint24 is the international shop of a Swedish driveline specialist with its warehouse in Helsingborg, Sweden, delivering vehicle power transmission parts across the EU. We choose depth over width, giving us a level of drivetrain expertise that few general retailers can match. When you order an inner CV joint for your Audi A3 Sportback from us, you receive more than just a spare part—you benefit from our specialist knowledge and components selected to withstand demanding European conditions.
Our exceptional category depth ensures we provide solutions even for rare engine variants of the A3 Sportback. Focusing on precise fitment and premium quality, we strive to be the preferred choice for DIY mechanics and professional garages alike. We know how much you rely on your vehicle every day, which is why we continuously stock the most dependable car parts available. Choose a specialist with a profound understanding of your drivetrain—choose CVJoint24 for a secure and confident purchase.
Frequently asked questions about inner CV joints for Audi A3 Sportback
How do I know whether the inner or outer CV joint is faulty on my Audi A3 Sportback?
A worn outer CV joint typically produces a clicking sound on full steering lock while driving. A worn inner CV joint causes vibrations throughout the entire car under acceleration instead, which usually disappear as soon as you lift off the accelerator.
Can I replace just the inner CV joint, or do I need to replace the entire drive shaft?
You can certainly replace just the inner CV joint if the rest of the drive shaft is in good condition. We offer individual inner joints for Audi A3 Sportback so you can carry out a cost-effective repair.
Why does my Audi A3 Sportback vibrate under acceleration?
This is a classic symptom of a worn inner CV joint. When the internal components of the joint wear out, play develops which causes the shaft to rotate off-centre under load (acceleration), leading to imbalance and vibrations.
Does the same inner CV joint fit both manual and DSG gearboxes?
No, usually not. The Audi A3 Sportback uses different types of inner joints depending on the gearbox. DSG gearboxes frequently utilise a tripod joint with a specific flange, whereas manual versions may have different designs. Always select your vehicle by make, model and engine to find the correct fit.
Are the CV boot and grease included when I buy an inner CV joint from you?
Yes, our inner CV joint kits are supplied complete with the specific CV boot, the correct amount of dedicated grease, clips and any circlips needed for installation.
How long does an inner CV joint last on an Audi A3 Sportback?
Lifespan varies greatly depending on driving style and whether the CV boot remains intact. Under normal driving conditions with undamaged boots, they can last over 200,000 kilometres, but a split boot can ruin the joint in just a few weeks.
Is it difficult to replace the inner CV joint yourself?
It requires some mechanical experience and the right tools, as the drive shaft usually needs to be removed from the car. It is vital to maintain scrupulous cleanliness so that no dirt enters the new constant velocity joint during installation.