Audi A8 3.7 Quattro
Spare parts and drivetrain components for Audi A8 3.7 Quattro. Confirm fitment using your make, model and engine before ordering.
Products for Audi A8 3.7 Quattro
- Position: Front right
- Flange diameter: 130 mm
- Total length: 523 mm
- Splines wheel side: 38
- ABS teeth: 45
- Position: Front right
- Flange diameter: 130 mm
- Total length: 550 mm
- Splines wheel side: 38
- ABS teeth: 45
- Position: Front left
- Diameter: 123 mm
- Flange diameter: 123 mm
- Joint diameter: 123 mm
- ABS teeth: 45
- Position: Front right
- Flange diameter: 123 mm
- Total length: 480 mm
- Splines wheel side: 38
- Diameter: 30 mm
- Height: 59 mm
- Hole spacing c/c: 189 mm
- Bearing thickness: 16 mm
- Position: Outer
- Seal diameter: 59 mm
- Inner splines: 27
- Outer splines: 38
- ABS teeth: 45
- Position: Outer
- Seal diameter: 59 mm
- Inner splines: 27
- Outer splines: 38
- ABS teeth: 0
- Position: Front right
- Diameter: 104 mm
- Total length: 588 mm
- Splines wheel side: 38
Audi A8 3.7 Quattro drivetrain
The Audi A8 3.7 Quattro represents a pinnacle of engineering where powerful performance meets sophisticated all-wheel drive. The drivetrain in this model is engineered to handle the torque delivered by the 3.7-litre V8 engine, whilst providing a vibration-free and quiet driving experience. As driveline specialists, we understand the unique challenges owners of this model face when components begin to wear. We have brought together the most critical parts so you can maintain your car's power delivery with maximum precision.
Our range for the Audi A8 3.7 Quattro covers everything from complete drive shafts to specific inner and outer CV joints. Every part is selected to match or exceed original equipment specifications, which is vital for a luxury car in this class. By focusing on quality and exact fitment, we ensure your vehicle remains safe on the road and that the quattro mechanics perform optimally in all conditions.
How the drivetrain works on the Audi A8 3.7 Quattro
The drivetrain layout on an Audi A8 3.7 Quattro is a masterclass in German engineering. The engine is longitudinally mounted, meaning power transfers first through the gearbox to a central Torsen differential. From there, power is distributed via a propeller shaft to the rear axle, as well as through front drive shafts to the front wheels. This setup demands that all components operate in perfect harmony to prevent unnecessary wear on the differentials and gearbox.
The front drive shafts are fitted with both inner and outer CV joints that allow the wheels to travel vertically and steer whilst transmitting torque. The rear axle uses similar configurations to cope with suspension travel. Because the Audi A8 is a heavy, powerful saloon, these joints endure significant stresses, especially during brisk acceleration and hard cornering. Understanding this complex setup is key when selecting the correct spare parts for a repair.
Common faults and symptoms
When driveline components on an Audi A8 3.7 Quattro start to fail, they usually produce distinct symptoms. One of the most typical signs of a worn outer CV joint is a rhythmic clicking or knocking sound clearly audible on full steering lock while moving. This is often caused by a split CV boot letting in road grime and allowing grease to escape, which rapidly ruins the joint's precision-machined bearing surfaces.
Vibrations through the floor or chassis under acceleration can point instead to a failing inner CV joint. These vibrations are often felt more through the seat than the steering wheel and can be tricky to identify without specialist knowledge. If the shudder is constant and increases with road speed, you should check the prop shaft and its centre bearing. Finally, fault warnings from the ABS or ESP system often stem from a cracked or corroded ABS ring, directly compromising the vehicle's electronic safety features.
Common parts to replace on the Audi A8 3.7 Quattro
To help guide your choice, we have organised the most frequent replacement components for this model. We see high demand for complete drive shafts, as replacing the entire assembly is often far more cost-effective than rebuilding individual joints during major overhauls. These are the main categories for your Audi A8 3.7 Quattro:
- Drive shafts: We stock 5 different options covering various positions and specifications.
- Outer CV joints: Crucial for smooth steering and torque delivery at the front wheels.
- Inner CV joints: Fitted against the gearbox or differential flange to accommodate suspension angle changes.
- Propeller shafts: The central link sending torque rearward in the Quattro system.
- ABS rings: Precision components that ensure your anti-lock brakes and stability control operate correctly.
Replacing worn components promptly prevents consequential damage to expensive items such as differentials and gearboxes. Investing in quality parts provides dependable insurance for your car's mechanical health.
Finding the right part for your Audi A8 3.7 Quattro
Navigate directly to the component category for your Audi A8 3.7 Quattro:
On a vehicle with several interrelated driveline components, starting in the right section saves time. By comparing the exact part categories for the Audi A8 3.7 Quattro, it is straightforward to distinguish between issues in a driveshaft, constant velocity joint or prop shaft, and proceed to the page that matches your car's symptoms and fitment.
- Drive shafts for Audi A8 3.7 Quattro
- Outer CV joints for Audi A8 3.7 Quattro
- Inner CV joints for Audi A8 3.7 Quattro
- Propeller shafts for Audi A8 3.7 Quattro
- ABS rings for Audi A8 3.7 Quattro
Identifying the exact component for an Audi A8 3.7 Quattro can be challenging given the vehicle's technical sophistication and varying specification levels. The most reliable way to navigate our catalogue of 11 items is to select your car's make, model and engine variant in our vehicle selector. This filters for parts verified for your specific chassis and drivetrain, taking the guesswork out of ordering.
When searching for a replacement, always verify whether you need a front or rear axle component, as well as the left or right side. On Quattro models, make sure the part is tailored for all-wheel-drive applications. If you are unsure whether you need a complete drive shaft or just a single CV joint, inspect the bare shaft thoroughly; if the splines or bar show excessive corrosion, fitting a complete drive shaft is usually the soundest approach for a lasting repair.
Why shop at CVJoint24?
CVJoint24 is the international shop of a Swedish driveline specialist, dispatching directly from our central warehouse in Helsingborg, Sweden, across the EU. We combine deep technical expertise with a product range tailored specifically for demanding performance vehicles such as the Audi A8 3.7 Quattro. Our priority is absolute accuracy and build quality, ensuring you receive parts that fit your car correctly. We understand that time off the road is costly, so we dispatch our stock quickly to keep your project moving forward.
Our business is built on helping you find the correct part first time. By sourcing from a dedicated specialist, you get driveline components chosen for their strength and precise tolerances—vital factors in maintaining complex Quattro drivetrains. We take pride in being a dependable partner for drivers and garages who refuse to compromise on quality. With our support, your Audi A8 will continue to deliver the refined performance it was designed for.
Frequently Asked Questions about Drivetrain Parts for Audi A8 3.7 Quattro
How do I know whether it is the inner or outer CV joint that is failing on my Audi A8?
A worn outer CV joint typically emits a clicking or knocking noise when turning, whereas a failing inner CV joint usually produces vibrations throughout the car under acceleration. You should also inspect the boots; a split CV boot is a sure sign that the joint will soon fail.
Does the same drive shaft fit both the left and right sides on an Audi A8 3.7 Quattro?
This varies depending on the axle position and model year. On many Audi models, the drive shafts differ in length to compensate for the offset position of the differential. Always filter by your make, model and engine variant to ensure you select the correct part for each side.
Why does my Audi A8 vibrate at higher speeds even though the tyres are balanced?
If the tyres are correctly balanced, the vibrations could be caused by an unbalanced propeller shaft or a worn centre bearing. On a Quattro model, the prop shaft is a critical component of the drivetrain that will cause vibrations if it is damaged or if its joints have started to seize.
Is it difficult to replace an ABS ring on an Audi A8 3.7 Quattro?
It requires removing the CV joint to access the ring. Because the Audi A8 features an advanced multi-link suspension setup, solid mechanical experience and the right tools are recommended. A cracked ABS reluctor ring is a common fault that triggers the ABS/ESP warning light.
Are fitting accessories included when I purchase a CV joint from you?
Yes, our CV joint kits are normally supplied complete with a CV boot, grease, clamps and, where required, a new centre bolt or circlip to ensure a proper installation.
Can I drive with a split CV boot?
It is not recommended. As soon as the boot splits, grease escapes and road dirt enters the joint. This wears out the constant velocity joint very quickly, which can lead to complete failure and leave the car stranded.