ABS rings for Audi 80 Avant S2 Quattro

ABS rings for Audi 80 Avant S2 Quattro

The Audi 80 Avant S2 Quattro is a legendary vehicle that requires components of the highest quality to maintain its performance and safety. The ABS ring, also known as an ABS reluctor ring, is a small but vital part of the car's braking system and safety functions. On a four-wheel-drive car such as the S2 Quattro, it is particularly crucial that all wheel speed signals are accurate, as this data is used by several systems to distribute power and stabilise the car while driving. We supply ABS rings specifically engineered to meet the technical demands of this exact model, ensuring trouble-free installation and a long service life.

Owning a classic performance car comes with the responsibility of maintaining it with the correct parts. Because the S2 model features a unique drivetrain compared to standard models, it is essential to choose an ABS ring with the exact tooth count and the correct inside diameter. An incorrect component can prevent the ABS system from reading wheel speed properly, leading to fault codes and degraded braking performance. With us, you will find parts that match the original specifications for your Audi 80 Avant S2 Quattro.

What does an ABS ring do on the Audi 80 Avant S2 Quattro?

The ABS ring is mounted onto the CV joint and functions as part of an inductive measuring system. As the wheel rotates, the ring's teeth pass an ABS sensor that generates an electrical pulse. This pulse is transmitted to the car's electronic control unit (ECU), which calculates the exact speed of the wheel. For an Audi 80 Avant S2 Quattro, this information is critical. The system uses this data to detect whether a wheel is about to lock under braking, but also to manage traction control and the electronic differential lock (EDL) commonly fitted to these Quattro models.

Without a functioning ABS ring, the vehicle loses its ability to modulate brake pressure individually for each wheel. This means that during an emergency stop, you risk losing steering control. Furthermore, incorrect signals from a damaged ring can trick the four-wheel-drive system into believing that a wheel is spinning, resulting in unnecessary wear on differentials and clutches within the drivetrain. Therefore, an intact and clean ABS ring is essential for keeping your Audi handling as the factory intended.

Common signs of wear

The most common sign that an ABS ring on your Audi 80 Avant S2 Quattro has failed is the illumination of the ABS warning light on the dashboard. This frequently happens when the ring has cracked due to corrosion. When rust forms beneath the ring, it expands, eventually causing the steel ring to snap. A cracked ring creates an irregular gap between the teeth, confusing the sensor and sending inaccurate speed signals to the car's computer.

Another symptom is when the ABS system activates during perfectly normal low-speed braking, just before the car comes to a complete halt. You may feel vibrations or a pulsing sensation through the brake pedal even on dry, smooth tarmac. This occurs because the sensor loses its signal at the cracked section as the wheel turns slowly. If you experience these symptoms, it is high time to inspect your ABS rings to avoid hazardous situations on the road.

How to choose the correct ABS ring

When buying a new ABS ring for your Audi 80 Avant S2 Quattro, it is important to check the specifications thoroughly. Different variations exist depending on the model year and whether the car has undergone any drivetrain modifications. The most critical details to check are the tooth count on the reluctor ring and its internal diameter, as it is press-fitted onto the outer CV joint. A ring with the wrong tooth count will give an incorrect speed reading, causing the ABS system to fail completely.

To make selection as straightforward as possible, we recommend selecting your exact make, model and engine variant in our store. Choosing your specific vehicle configuration filters out incompatible parts and displays only the components verified for your car. This eliminates the risk of ordering the wrong item and ensures you receive a part with the correct tolerances. If you are unsure whether your car still has its original constant velocity joints, counting the teeth on the old ring before ordering is always good practice.

Related parts to check

You may also wish to check these exact pages for the same vehicle when working on the ABS ring:

When a driveline component shows wear, adjacent parts on the same car often require inspection as well. By comparing these exact pages for the Audi 80 Avant S2 Quattro, it becomes much easier to determine whether the issue lies purely with the ABS ring or with another neighbouring part of the transmission.

This is particularly relevant on models where vibrations, play and noises can transfer symptoms across several parts in the same drivetrain. A quick check of related categories reduces the risk of replacing the right component type while overlooking an adjacent part that contributes to the same problem.

• Audi 80 Avant S2 Quattro
• Outer CV joints for Audi 80 Avant S2 Quattro
• Inner CV joints for Audi 80 Avant S2 Quattro
• Propeller shaft Audi 80 Avant S2 Quattro

By proactively replacing worn driveline parts, you ensure that your Audi retains its legendary roadholding while preventing costly secondary damage to the gearbox and differentials.

Why shop at CVJoint24?

CVJoint24 is the international shop of a Swedish driveline specialist, with our central warehouse based in Helsingborg, Sweden. We focus exclusively on power transmission components, giving us dedicated expertise and a depth of inventory that few can match. When you order from us, you can rest assured that you are receiving high-quality parts tested to withstand the demands of both modern and classic vehicles. We always offer a comprehensive fitment guarantee, taking full responsibility that the part fits your car when selected by make, model and engine.

We appreciate that your Audi 80 Avant S2 Quattro is far more than just everyday transport, which is why we aim to dispatch the right component without delay. Through our efficient European logistics, we supply stocked car parts rapidly across the EU so you can get your vehicle back on the road promptly. Choose CVJoint24 for a dependable purchase, proven drivetrain expertise and components that deliver what they promise.