Audi A4 1.8 Tfsi
Spare parts and drivetrain components for the Audi A4 1.8 Tfsi. Confirm fitment using your car's make, model and engine before ordering.
Products for Audi A4 1.8 Tfsi
- Position: Front left, Front right
- Total length: 465 mm
- Splines wheel side: 42
- Position: Front, Inner
- Total length: 84 mm
- Splines wheel side: 24
- Position: Front, Outer
- Inner splines: 28
- Outer diameter: 94 mm
- Splines wheel side: 42
- Position: Outer
- Seal diameter: 76 mm
- Inner splines: 27
- Outer splines: 42
- Joint diameter: 100 mm
- Position: Front left, Front right
- Flange diameter: 123 mm
- Total length: 466 mm
- Splines wheel side: 42
- Position: Front, Inner
- Total length: 88 mm
- Splines gearbox side: 34
- ABS teeth: 34
- Position: Outer
- Seal diameter: 76 mm
- Inner splines: 28
- Outer splines: 42
- Flange diameter: 123 mm
- Total length: 465 mm
- Splines wheel side: 42
Audi A4 1.8 Tfsi drivetrain
The Audi A4 1.8 Tfsi is well known for balancing performance with comfort, but preserving these qualities requires a properly functioning drivetrain. The power transmission system is central to your car's movement, and every component from the gearbox out to the wheel hubs plays a vital part. As driveline specialists, we understand the specific demands placed on this engine variant. The 1.8 Tfsi unit produces generous torque requiring durable components to minimise energy loss and maximise service life. Selecting the correct spare parts ensures both reliable running and strong resale value. We supply a comprehensive range covering everything from complete shafts to individual joints, precisely matched to your car's specifications. Maintaining the drivetrain is an investment in safety and driving dynamics, especially on a premium saloon or estate like the Audi A4.
How the drivetrain works on the Audi A4 1.8 Tfsi
The drivetrain layout of an Audi A4 1.8 Tfsi is engineered with a clear focus on precision and durability. The system centres on a gearbox that transmits power via drive shafts to the front wheels, or to all four wheels on quattro variants. Each drive shaft features two joints: an inner joint fitted against the gearbox and an outer joint connected to the wheel hub. These constant velocity joints accommodate suspension movement and steering angles while transmitting power smoothly and without snatching. For the 1.8 Tfsi model, accurate dimensioning of these components is crucial to handle the turbo engine's delivery. The materials in our parts are selected to cope with both demanding urban driving and high motorway speeds, ensuring a vibration-free, reassuring drive.
Common faults and symptoms
Identifying drivetrain issues early can prevent secondary damage and save costly repairs. One of the clearest symptoms of a worn outer CV joint on an Audi A4 1.8 Tfsi is a clicking or knocking noise heard at full steering lock while accelerating. If you experience chassis vibration during acceleration instead, especially between 70 and 100 km/h, an inner CV joint on your Audi A4 1.8 Tfsi may have developed play or run dry of grease. Another warning sign is grease or oil spattered inside the wheel rim, typically caused by a split CV boot. When the boot tears, dirt and moisture enter while lubricating grease escapes, leading to rapid joint failure. Ignoring these symptoms can ultimately cause a total breakdown where drive is lost completely.
Common replacement parts for the Audi A4 1.8 Tfsi
Certain components on the Audi A4 1.8 Tfsi require inspection more frequently due to mileage and road conditions. Here are the key categories for your model:
- Drive shafts: Fitting a complete Audi A4 1.8 Tfsi driveshaft is often the most cost-effective fix for heavy wear, as you renew the inner joint, outer joint and central shaft in one go.
- Outer CV joints: These articulate through sharp angles during steering and represent a frequent wear item that warrants regular checking.
- Inner CV joints: These manage axial plunge within the drivetrain and are critical for preventing unwanted vibrations reaching the cabin.
- CV boots: A low-cost yet essential component that seals and protects expensive joints from contamination and premature wear.
By monitoring these components and resolving early signs of wear, you help protect both the gearbox and wheel bearings, keeping your Audi in peak condition for many miles to come.
How to find the right part for the Audi A4 1.8 Tfsi
Navigate directly to the subcategory for your Audi A4 1.8 Tfsi:
When troubleshooting drivetrain issues, starting in the right subcategory saves time. Comparing the specific component groups for the Audi A4 1.8 Tfsi makes it easier to tell drive shaft, CV joint and prop shaft issues apart, guiding you straight to the correct fitment.
- Drive shafts for Audi A4 1.8 Tfsi
- Outer CV joints for Audi A4 1.8 Tfsi
- Inner CV joints for Audi A4 1.8 Tfsi
Finding the right component for an Audi A4 1.8 Tfsi can occasionally feel tricky due to production variations across model years, gearbox codes and chassis numbers. The most reliable way to select matching car parts is to filter by your vehicle's exact make, model and engine variant. We also advise checking the spline tooth count on your existing component if you are doing the job yourself, as manufacturers sometimes introduce revisions during a model's run. Our catalogue is structured to help you get the correct part first time, backed by our fitment guarantee. If you have any technical questions about a drive shaft or CV joint, our customer support team is on hand with specialist advice.
Why choose CVJoint24?
CVJoint24 is the international shop of a Swedish driveline specialist shipping across the EU from our central warehouse in Helsingborg, Sweden. When you buy from us, you access extensive driveline stock with technical expertise that few general retailers can match. We know you need to get your car back on the road quickly, so we dispatch stocked items with fast delivery across Europe. Our commitment is simple: delivering the right part at competitive prices without compromising on build quality. Backed by our fitment guarantee and straightforward returns, you can order drivetrain components for your Audi A4 1.8 Tfsi with total confidence.
Frequently Asked Questions about Drivetrain parts for Audi A4 1.8 Tfsi
How do I know if the drive shaft on my Audi A4 1.8 Tfsi needs replacing?
The most common signs are vibrations under acceleration or clicking noises when cornering. If you notice the car shaking at certain speeds or grease leaking from the CV boots, it is time for an inspection.
Can I replace just the outer CV joint instead of the entire drive shaft?
Yes, on the Audi A4 1.8 Tfsi it is entirely possible to replace only the outer CV joint if the shaft itself and the inner joint are still in good condition. This is often a more cost-effective option.
Do all drive shafts fit every Audi A4 model?
No, drive shafts vary depending on the engine (such as the 1.8 Tfsi), gearbox (manual or automatic), and whether the car has front-wheel drive or Quattro. Always select your exact make, model and engine to ensure the correct fit.
What causes vibrations under acceleration in my Audi A4?
Vibrations under acceleration are often caused by wear in the inner CV joint. When the joint wears, play develops that transmits vibrations through the drivetrain and directly into the car's chassis.
How long does a CV joint last on an Audi A4 1.8 Tfsi?
A CV joint can last the entire lifespan of the car provided the boot remains intact. However, if the boot splits and dirt penetrates the joint, it can be ruined in just a few weeks.
Do you offer a warranty on driveline parts for Audi?
Yes, we provide an accurate fitment guarantee when you select your vehicle by make, model and engine, alongside standard product warranties ensuring you receive high-quality parts that match or exceed original equipment standards.