Inner CV joints for Audi A3 Sportback 1.2 Tfsi
Looking for a high-quality inner CV joint for your Audi A3 Sportback 1.2 Tfsi? At CVJoint24 you will find vehicle-specific components engineered to ensure smooth power transmission and...
Products for Inner CV joints for Audi A3 Sportback 1.2 Tfsi
- Position: Inner
- Seal diameter: 100 mm
- Inner splines: 33
- Joint diameter: 100 mm
- Position: Inner
- Seal diameter: 59 mm
- Inner splines: 33
- Outer splines: 36
- Position: Inner
- Seal diameter: 94 mm
- Inner splines: 33
- Number of joints: 3
- ABS teeth: 0
Inner CV joints for Audi A3 Sportback 1.2 Tfsi
The inner CV joint is a critical component in the power transmission of your Audi A3 Sportback 1.2 Tfsi. This specific model, known for its efficient engine and responsive handling, requires components engineered to the highest precision to perform optimally. Mounted closest to the gearbox, the inner constant velocity joint transfers torque from the engine out to the drive shafts while allowing vertical suspension travel. For an Audi A3 Sportback 1.2 Tfsi, keeping these parts in prime condition is vital to maintain the balance and ride comfort the car was designed to deliver. Wear on this component can lead to secondary issues throughout the entire drivetrain if not addressed in time, making the choice of the correct spare part a crucial investment in your vehicle's lifespan.
What does the inner CV joint do on the Audi A3 Sportback 1.2 Tfsi?
On an Audi A3 Sportback 1.2 Tfsi, the inner CV joint acts as the link between the gearbox output shaft and the drive shaft itself. Unlike the outer CV joint, which primarily accommodates steering angles, the inner joint is designed to plunge, managing changes in shaft length as the wheels travel over road irregularities. This articulation is necessary to keep power transfer constant regardless of road conditions and load. For the 1.2 Tfsi engine, which delivers smooth, efficient torque, the inner joint must operate without friction or play. The design typically uses a tripod joint or ball-type configuration depending on the exact specification, engineered to damp vibrations that might otherwise travel into the cabin. A properly functioning inner CV joint reduces stress on the gearbox and ensures a quieter, more stable driving experience.
Common symptoms of wear
There are several telltale signs that the inner CV joint on your Audi A3 Sportback 1.2 Tfsi is worn or damaged. The most common symptom is vibration felt through the car body or steering wheel during acceleration. Unlike wheel imbalance, which usually appears at specific speeds regardless of throttle input, inner joint vibrations are directly tied to engine load. Another symptom is a dull clunking or clicking sound when accelerating or during engine braking. If the CV boot protecting the joint splits, grease escapes, quickly allowing dirt and moisture to penetrate and damage the internal bearings. Left unresolved, this can eventually damage the gearbox oil seals, causing transmission fluid leaks. We recommend inspecting the CV boots at every service to prevent costly repairs.
How to choose the correct inner CV joint
Selecting the right inner CV joint for an Audi A3 Sportback 1.2 Tfsi can be challenging, as dimensions vary depending on the gearbox type (manual or DSG) and production year. The most critical details to check are the spline count on both the inner and outer sides of the joint, as well as the diameter of the sealing surface against the gearbox. To make selection straightforward and reliable, select your car's make, model and engine variant in our store. Filtering the range ensures you see parts tailored specifically to your vehicle's exact drivetrain setup, eliminating guesswork and guaranteeing a precise fit straight out of the box. Before installation, thoroughly clean all mating surfaces to ensure the new joint seats and seals correctly.
Related parts to check
You can also check these matching category pages for the same vehicle when working on the inner CV joint:
When a drivetrain component wears out, surrounding parts often warrant an inspection as well. Comparing these dedicated pages for the Audi A3 Sportback 1.2 Tfsi makes it easier to pinpoint whether an issue stems solely from the inner CV joint or involves adjacent transmission components.
This is particularly relevant on models where vibrations, play and mechanical noises can travel between several parts within the same driveline. A quick check of related categories helps ensure you do not replace one part while overlooking a neighbouring component that contributes to the same fault.
- Audi A3 Sportback 1.2 Tfsi
- Drive shafts for Audi A3 Sportback 1.2 Tfsi
- Outer CV joints for Audi A3 Sportback 1.2 Tfsi
Replacing worn components at the same time can save significant labour and expense, as removing the driveshaft accounts for most of the workshop time. Ensuring your entire drivetrain is in peak condition restores optimal performance and driving safety.
Why buy from CVJoint24?
CVJoint24 is the international shop of a Swedish driveline specialist, dispatching directly from our central warehouse in Helsingborg, Sweden, to customers across the EU. We understand the importance of getting the right part for your Audi A3 Sportback 1.2 Tfsi promptly to minimise garage downtime. With deep technical expertise and a product range built on precision engineering, we supply car parts that match or exceed original equipment standards. With our knowledgeable customer support team ready to assist with any driveline query, you can order with absolute confidence. Choose the right component first time and experience the advantage of a specialist dedicated to quality, fitment and reliability.
Frequently Asked Questions about Inner CV Joints for Audi A3 Sportback 1.2 Tfsi
How do I know if the inner CV joint is failing on my Audi A3 Sportback 1.2 Tfsi?
The most common symptoms are vibrations through the car during acceleration and dull thumping noises under load. The vibrations typically disappear as soon as you lift off the accelerator.
Can I drive with a damaged inner CV joint?
It is not recommended. A worn or damaged inner CV joint can cause severe vibrations that damage the gearbox and, in the worst case, lead to the drive shaft detaching completely.
What is the difference between an inner and outer CV joint?
The inner joint sits next to the gearbox and accommodates suspension movement, whilst the outer joint is located at the wheel and handles the vehicle's steering angle.
Are the boot and grease included when I buy an inner CV joint from you?
Yes, our inner CV joints are supplied as complete kits including the CV boot, specialised grease, clamps, and mounting hardware to make replacement straightforward.
Why does my Audi A3 Sportback 1.2 Tfsi vibrate during acceleration?
This is often caused by play in the inner CV joint. Under engine load, wear inside the joint creates an imbalance that propagates as vibrations throughout the entire car.
Is it difficult to replace an inner CV joint yourself?
It requires moderate mechanical experience and the right tools, as the drive shaft needs to be removed. For a confident DIY mechanic it is entirely feasible, but following correct torque settings is essential.