Audi A8 4.0 Tfsi Quattro
Drivetrain components and spare parts for Audi A8 4.0 Tfsi Quattro. Select your make, model and engine to verify fitment before ordering.
Products for Audi A8 4.0 Tfsi Quattro
- Position: Front
- Splines wheel side: 42
- Total length: 495 mm
- Joint diameter: 88 mm
- Joint diameter, gearbox side: 123 mm
- Position: Rear right
- Splines wheel side: 42
- Total length: 576 mm
- Position: Rear
- Splines wheel side: 42
- Total length: 660 mm
- Joint diameter: 99 mm
- Joint diameter, gearbox side: 108 mm
- Position: Inner
- Inner splines: 34
- Total length: 88 mm
- Joint diameter: 123 mm
- Outer splines: 34
- Position: Outer
- Inner splines: 28
- Seal diameter: 76 mm
- Outer splines: 42
- Thread size: M16X1,5
- Total length: 1,856 mm
- Number of joints: 3
- Outer diameter 1: 90 mm
- Outer diameter 2: 99,73 mm
- Bolt circle diameter 2: 86 mm
- Position: Rear
- Total length: 1,675 mm
- Number of joints: 3
- Number of centre bearings: 1
- Position: Rear left
- Splines wheel side: 42
- Total length: 620 mm
- Diameter 2: 108 mm
- Position: Front, Inner
- Inner splines: 24
- Total length: 84 mm
- Joint diameter: 81 mm
- Outer splines: 24
- Position: Front
- Splines wheel side: 42
- Total length: 490 mm
- Joint diameter: 104 mm
- Joint diameter, gearbox side: 123 mm
- Total length: 108 mm
- Inner diameter: 22 mm
- Outer diameter: 80 mm
- Height: 85 mm
- Position: Rear, Inner
- Inner splines: 28
- Seal diameter: 76,5 mm
- Total length: 77 mm
- Outer splines: 42
Audi A8 4.0 Tfsi Quattro drivetrain components
The Audi A8 4.0 Tfsi Quattro is a sophisticated machine where the drivetrain plays a pivotal role in managing the immense torque generated by the powerful V8 engine. Proper maintenance of the power transmission system is essential to preserve the silky-smooth ride and responsive all-wheel drive characteristic of this model. At CVJoint24, you will find a curated selection of components engineered specifically for this engine variant and its demanding standards of strength and precision. With dedicated items in our catalogue for this specific version, we deliver coverage that few other suppliers can match. We understand that Audi A8 owners expect the highest quality from their car parts, which is why we only stock components that meet or exceed the technical specifications required for the Quattro system. Each component is selected to withstand the high demands of spirited driving and ensure lasting durability under tough European conditions.
How the drivetrain is configured on the Audi A8 4.0 Tfsi Quattro
The drivetrain architecture of the Audi A8 4.0 Tfsi Quattro centres on the permanent Quattro all-wheel drive system. Power from the front-mounted 4.0 TFSI engine is directed through an automatic gearbox to a centre differential. From there, power is distributed rearwards via a propeller shaft to the rear axle, and via drive shafts to the front wheels. This layout demands robust components, as acceleration forces place considerable load on the system, particularly given the car's weight and power output. Every link in the chain, from the inner CV joint at the gearbox to the outer joint at the wheel hub, must work in perfect unison to eliminate vibrations and power loss. Designed to handle sustained motorway speeds as well as demanding driving surfaces, choosing the correct replacement car parts is vital to preserve the car's reliability and the signature driving dynamics of the A8.
Common faults and symptoms
Symptoms of drivetrain wear on an Audi A8 vary depending on which component is deteriorating. One of the most typical signs is a distinct clicking or knocking noise on full steering lock, which usually indicates that an outer CV joint is beginning to fail. If you notice chassis vibrations under heavy acceleration instead, the cause could be a worn inner CV joint or an unbalanced prop shaft. It is equally important to inspect the CV boots for grease leaks; a split boot allows grit to enter and grease to escape, leading to rapid failure of the constant velocity joint itself. Because the A8 is exceptionally well-insulated, subtle vibrations can be difficult to detect early on. We strongly recommend a visual inspection of all drivetrain components during every scheduled service to prevent costly repairs further down the line.
Common parts to replace on the Audi A8 4.0 Tfsi Quattro
Over the lifespan of an Audi A8 4.0 Tfsi Quattro, several key parts may need replacing to maintain optimal driving refinement. Our range caters to the most frequent maintenance needs of this model and includes the following categories:
- Drive shafts: We stock several drive shaft variants to suit different positions and detailed technical specifications.
- CV joints: Both inner and outer joints precision-machined to integrate seamlessly with the Quattro system hubs and shafts.
- Propeller shafts: Crucial components directing power to the rear axle, available in 2 designs for this specific engine variant.
By selecting the appropriate category, you ensure that you receive components built to cope with the high torque output of the 4.0 TFSI engine. Replacing a worn driveshaft in good time prevents consequential damage to the differentials and gearbox, avoiding expensive repairs and safeguarding the car's resale value.
How to find the right part for your Audi A8 4.0 Tfsi Quattro
Select the relevant category for your Audi A8 4.0 Tfsi Quattro:
When troubleshooting a car with multiple potential driveline issues, starting in the right section is essential. By comparing the exact component areas for the Audi A8 4.0 Tfsi Quattro, you can easily distinguish between drive shaft, CV joint or propeller shaft faults and navigate to the page matching your symptoms and fitment needs.
- Drive shafts for Audi A8 4.0 Tfsi Quattro
- Outer CV joints for Audi A8 4.0 Tfsi Quattro
- Inner CV joints for Audi A8 4.0 Tfsi Quattro
- Propeller shafts for Audi A8 4.0 Tfsi Quattro
Finding the right spare parts for an engineered vehicle like the Audi A8 requires precision. The easiest and most dependable method is using our vehicle selector to choose your exact make, model and engine. This instantly filters the parts verified for your specific specification and powertrain. Because Audi often introduces variations depending on the chassis number or production month, we also advise checking technical details such as the spline count (teeth) and overall shaft length whenever these are listed in the product description. If you are unsure whether you need a complete drive shaft or just an individual CV joint, our expert support team is always ready to assist. We are here to help you navigate our range for the Audi A8 so you get the correct part first time, avoiding delays and unnecessary returns.
Why shop at CVJoint24?
CVJoint24 is the international shop of a Swedish driveline specialist, dispatching orders across Europe from our central warehouse in Helsingborg, Sweden. We stand apart from general car parts retailers thanks to our deep niche expertise and strict focus on precise fitment for premium vehicles such as the Audi A8. When ordering from us, you receive high-grade components backed by our accurate fitment standards. We understand how critical it is that your Audi A8 4.0 Tfsi Quattro performs smoothly and reliably, which is why we only supply components manufactured for superior longevity and strength. With fast shipping across the EU and inventory carefully matched to demanding European requirements, we are the trusted partner for both discerning car enthusiasts and professional garages. Our goal is to ensure you get the exact spare parts you need to restore your car's factory refinement with confidence.
Frequently asked questions about drivetrain parts for Audi A8 4.0 Tfsi Quattro
How do I know if my Audi A8 4.0 Tfsi Quattro needs a new drive shaft?
The most common signs are vibrations under acceleration or noises when turning. If you notice vibrations that increase with vehicle speed, it may be due to an imbalance in a drive shaft or propeller shaft.
Do all CV joints fit Audi A8 regardless of engine?
No, the 4.0 Tfsi Quattro often features heavy-duty components compared to models with smaller engines to handle the higher torque output. Always filter by your make, model and engine to find the right part.
What is the difference between an inner and outer CV joint on my Audi?
The outer CV joint is located at the wheel and allows for steering movement, while the inner joint sits at the gearbox and accommodates length changes in the shaft during suspension travel.
Can I replace just the CV boot if it is split?
Yes, if you catch the damage early before dirt and grit have damaged the joint itself, replacing the CV boot and repacking it with fresh grease is often sufficient.
How many propeller shafts are available for Audi A8 4.0 Tfsi Quattro?
In our range, there are 2 variants of propeller shafts for this model, depending on the exact specification and model year.
Do you offer a fitment guarantee on drivetrain parts?
Yes, we provide a fitment guarantee when you select your vehicle's exact make, model and engine, ensuring you receive the correct part for your Audi A8 4.0 Tfsi Quattro.