Audi A3 1.8 Tfsi Quattro
Spare parts and drivetrain components for the Audi A3 1.8 Tfsi Quattro. Select your make, model and engine to confirm fitment before ordering.
Products for Audi A3 1.8 Tfsi Quattro
- Position: Front, Outer
- Inner splines: 27
- Seal diameter: 59 mm
- Outer splines: 36
- Thread size: M16X1,5
- Position: Outer
- Inner splines: 30
- Splines wheel side: 36
- Seal diameter: 60 mm
- Outer diameter: 90 mm
- Position: Front, Outer
- Inner splines: 33
- Seal diameter: 59 mm
- Outer splines: 36
- Thread size: M16X1,5
- Position: Front, Inner
- Inner splines: 34
- Seal diameter: 119 mm
- Total length: 78 mm
- Joint diameter: 119 mm
- Position: Front right
- Splines wheel side: 36
- Total length: 795 mm
- Joint diameter: 98 mm
- Joint diameter, gearbox side: 108 mm
- Position: Front left, Inner
- Inner splines: 34
- Seal diameter: 31 mm
- Joint diameter: 85 mm
- Outer splines: 37
- Position: Front right, Inner
- Inner splines: 28
- Seal diameter: 50 mm
- Total length: 300 mm
- Joint diameter: 102 mm
- Position: Rear
- Total length: 2,223 mm
- Number of joints: 1
- Position: Inner
- Inner splines: 28
- Splines gearbox side: 40
- Seal diameter: 46,9 mm
- Outer diameter: 98 mm
- Position: Rear
- Total length: 2,170 mm
- Number of joints: 1
- Outer diameter 1: 16 mm
- Bolt circle diameter 1: 96 mm
- Position: Rear
- Splines wheel side: 36
- Total length: 594 mm
- Joint diameter, gearbox side: 100 mm
- Diameter 2: 100 mm
Audi A3 1.8 Tfsi Quattro Drivetrain
The Audi A3 1.8 Tfsi Quattro is a car that combines punchy performance with the renowned traction of the Quattro all-wheel-drive system. For this setup to function seamlessly, the drivetrain must be in first-rate condition. The drivetrain on an Audi A3 1.8 Tfsi Quattro is a sophisticated design responsible for transferring torque from the turbocharged 1.8-litre engine to all four wheels. Because power is distributed dynamically according to grip and driving style, components such as drive shafts and CV joints endure considerable stress, especially under enthusiastic driving or in harsh European winters. Maintaining and replacing worn components promptly is not just about driving comfort; it is a critical safety measure. A defective CV joint or an unbalanced propeller shaft can quickly cause secondary damage to the gearbox and differential, leading to costly repairs. Here you will find the specific spare parts required to preserve your Audi's original driving dynamics and dependability year after year.
How the Drivetrain Works on the Audi A3 1.8 Tfsi Quattro
The drivetrain architecture on an Audi A3 1.8 Tfsi Quattro differs significantly from the front-wheel-drive versions of the same model. It features an intelligent four-wheel-drive layout requiring an expanded array of components to operate effectively. Power leaves the gearbox and is sent via a bevel box (transfer box) to a propeller shaft running underneath the car to the rear differential. Furthermore, there are four drive shafts in total – two front and two rear – each equipped with both inner and outer CV joints. The outer joints allow the front wheels to steer while transmitting torque, whereas the inner joints accommodate suspension travel. This configuration ensures maximum traction under acceleration and superb stability through bends. Every link in this driveline chain must be perfectly balanced to prevent vibrations and unwanted noises, which is why we only stock car parts precision-machined for the 1.8 Tfsi Quattro variant.
Common Faults and Symptoms
Spotting drivetrain issues early can save you substantial time and money. On the Audi A3 1.8 Tfsi Quattro, several classic symptoms warrant close attention. One of the most common signs of a worn outer CV joint is a rhythmic clicking or knocking noise when turning sharply at low speeds. If vibrations occur under acceleration instead and disappear when you lift off the throttle, it typically indicates that an inner constant velocity joint has developed play or lost its grease. On Quattro models, it is equally important to listen for whining or rumbling noises from the centre of the car, which can point to wear in the prop shaft centre bearing or universal joints. Because the 1.8 Tfsi engine delivers generous torque, even minor defects in the drivetrain are magnified and felt through the steering wheel or chassis. Ignoring these symptoms frequently leads to split CV boots, letting dirt penetrate and ruin the precision-ground raceways inside the joints.
Popular Replacement Parts for Audi A3 1.8 Tfsi Quattro
Within our range for the Audi A3 1.8 Tfsi Quattro, we have categorised components so you can easily find what you require. We stock a comprehensive selection covering various axle positions and technical specifications for this model. Alongside complete assemblies, we supply separate components such as individual outer and inner CV joints to make targeted, cost-effective repairs possible. Common parts requested by our customers include:
- Drive shafts: Complete units for both the front and rear axles, ready for direct fitting.
- Outer CV joints: Often supplied with a CV boot, grease and fitting hardware for a complete hub-side overhaul.
- Inner CV joints: Engineered to seat at the gearbox or rear differential and absorb axial movement.
- Propeller shafts: The central link in the Quattro system transmitting engine torque back to the rear axle.
Replacing worn components with our quality-tested parts restores your car's drivetrain to factory freshness. It is often more economical to install a complete driveshaft if multiple joints are worn, as it cuts workshop labour costs and gives you a brand-new assembly with maximum service life.
Finding the Right Part for Your Audi A3 1.8 Tfsi Quattro
Navigate directly to the right category for your Audi A3 1.8 Tfsi Quattro:
When diagnosing driveline faults, starting in the right subcategory saves valuable time. By comparing the specific product groups for the Audi A3 1.8 Tfsi Quattro, it is straightforward to identify whether the issue lies with a drive shaft, CV joint or propeller shaft, directing you to the parts that match your symptoms and exact vehicle specifications.
- Drive shafts for Audi A3 1.8 Tfsi Quattro
- Outer CV joints for Audi A3 1.8 Tfsi Quattro
- Inner CV joints for Audi A3 1.8 Tfsi Quattro
- Propeller shafts for Audi A3 1.8 Tfsi Quattro
If there are multiple equipment variants listed for your vehicle, you can rely on our parts meeting strict criteria for quality and durability. Our precise fitment standards give you complete confidence that the items you order will fit your Audi accurately.
Why Buy from CVJoint24?
CVJoint24 is the international online shop of a Swedish driveline specialist, dispatching orders across the EU from our central warehouse in Helsingborg, Sweden. When buying parts for your Audi A3 1.8 Tfsi Quattro from us, you benefit from dedicated technical expertise and a thoroughly tested product line. We understand the engineering behind Audi's Quattro system and stock robust components built to withstand demanding conditions. Simply select your car's make, model and engine to pinpoint the correct parts with ease. Our streamlined logistics ensure prompt delivery across Europe. Whether you require a replacement prop shaft or a standard CV joint, combining dependable technical support, premium car parts and a straightforward online platform makes CVJoint24 the natural choice for DIY mechanics and professional garages alike. Your peace of mind is our priority, from selection through to fitting.
Frequently asked questions about drivetrain parts for Audi A3 1.8 Tfsi Quattro
How do I know if my Audi A3 1.8 Tfsi Quattro needs a new drive shaft?
Common signs include severe vibrations under acceleration or unusual noises from the wheel arches. If you notice the car shaking under load but settling down when you lift off the accelerator, this often points to a worn drive shaft.
What is the difference between the inner and outer CV joint on a Quattro?
The outer CV joint sits closest to the wheel and accommodates steering angles; it typically clicks when cornering when worn or broken. The inner CV joint sits against the gearbox or differential and accommodates suspension travel; it usually causes vibrations during acceleration.
Does the same drive shaft fit both front and rear on my Audi A3?
No, the front and rear drive shafts have different lengths and specifications. In addition, they often differ between the left and right side. Always check your car's model year, gearbox and exact engine code to select the correct fitting position.
Why does my Audi A3 1.8 Tfsi Quattro vibrate under acceleration?
This is most often caused by internal play in one of the CV joints or an imbalance in the propeller shaft. Because the Quattro system distributes power to all four wheels, vibrations can feel more pronounced than on a two-wheel-drive car.
How often should you check the CV boots on an Audi A3 Quattro?
We recommend inspecting the CV boots at every service or wheel swap. A split boot quickly leads to constant velocity joint failure due to the ingress of dirt and moisture.
Can I replace just the CV joint, or do I need to replace the complete drive shaft?
It is often possible to replace just the CV joint if the shaft itself is undamaged. However, if multiple joints are worn or the shaft is heavily corroded, replacing the complete drive shaft is often more cost-effective and dependable.