ABS rings for Audi 100 S4 Turbo Quattro

ABS rings for Audi 100 S4 Turbo Quattro

The Audi 100 S4 Turbo Quattro is an iconic model that pairs potent performance with Audi's legendary all-wheel-drive system. To maintain the car's safety characteristics and the proper function of its advanced braking system, an intact ABS ring is absolutely crucial. Produced between 1991 and 1994, this specific model places high demands on its driveline components due to the strong power and torque output of the turbocharged engine. A cracked or corroded ABS reluctor ring can quickly cause unpredictable braking behaviour, which is particularly critical on a Quattro vehicle with intricate power distribution. At CVJoint24, we understand the need for exact precision on this model, which is why we offer carefully selected ABS rings that match the original specifications for your Audi 100 S4 Turbo Quattro. Choosing the correct replacement ensures your classic performance car continues to deliver the precise driving experience it was engineered for.

What does the ABS ring do on an Audi 100 S4 Turbo Quattro?

The ABS ring, also called an ABS reluctor ring, is a vital part of your anti-lock braking system. On the Audi 100 S4 Turbo Quattro, this toothed ring is mounted directly on the outer CV joint and rotates together with the road wheel. An ABS sensor monitors the passing teeth and sends electrical pulses to the control unit. By reading these signals, the system calculates whether an individual wheel is on the verge of locking up under heavy braking. If a lock-up is detected, the ABS immediately modulates hydraulic brake pressure to keep the tyre rolling and maintain steering control. For a high-performance car like the S4 Turbo Quattro, where speeds are higher and brake loads are substantial, dependable communication between the ring and sensor is vital. Without an intact ring, the anti-lock system cannot operate correctly, resulting in longer stopping distances and an increased risk of skidding, particularly on slippery surfaces where the Quattro drive would otherwise excel.

Common signs of wear and damage

The clearest sign of a failing ABS ring on your Audi 100 S4 Turbo Quattro is an illuminated ABS warning light on the instrument panel. In most cases, this happens when the ring has cracked due to rust expansion underneath, or when teeth have been damaged by grit, road dirt and winter salt. Another classic symptom is false ABS activation during gentle, low-speed braking, felt as an unexpected pulsation in the brake pedal just before the car comes to a complete halt. This occurs because the control unit receives irregular speed readings caused by the wider gap at the fracture. If you notice erratic brake pedal response or an intermittent ABS fault, inspect the reluctor rings promptly. Because the Audi 100 S4 is an older modern classic, corrosion-induced cracking of the ABS rings is a very frequent issue that requires timely replacement to keep your vehicle safe on the road.

How to choose the correct ABS ring

Selecting the right ABS ring for an Audi 100 S4 Turbo Quattro requires careful attention to detail. Tooth counts and internal dimensions can vary depending on the exact build date and axle specification. To ensure you purchase the correct part, simply select your car's make, model and engine variant in our store selector. It is also wise to verify that the replacement ring has the identical tooth count to the original unit on your car, as even a minor deviation causes the ABS sensor to transmit invalid wheel-speed data. For your Audi 100 S4 Turbo Quattro, an accurate fit is essential to prevent recurring diagnostic trouble codes. We supply components manufactured to strict OEM standards, ensuring straightforward installation, reliable sensor readings, and lasting safety.

Related parts to inspect

We recommend checking these exact pages for the same vehicle when working on your ABS rings:

When a drivetrain component develops wear, neighbouring parts on the same car often require attention as well. By comparing these matching categories for the Audi 100 S4 Turbo Quattro, it becomes much easier to determine whether an issue lies purely with the ABS ring or with an adjacent section of the drivetrain.

This is especially important on performance models where vibrations, play and strange noises can transfer between interconnected assemblies. A quick inspection of related categories prevents replacing the right part while missing an adjacent component that causes the same underlying fault.

• Audi 100 S4 Turbo Quattro
• Drive shafts for Audi 100 S4 Turbo Quattro
• Outer CV joints for Audi 100 S4 Turbo Quattro
• Inner CV joints for Audi 100 S4 Turbo Quattro

While components are dismantled to fit a new ABS ring, it is an ideal opportunity to inspect the rest of the driveline. On the Audi 100 S4 Turbo Quattro, the CV joints cope with considerable driving torque. Always check the flexible CV boots for splits, perishing or grease leakage, as lost lubricant and ingress of dirt will ruin a constant velocity joint in short order. If the joint shows play or wear, it is often more cost-effective to replace the complete joint assembly, which frequently includes a fresh ABS ring. Here are the most relevant categories for your vehicle:

• Drive shafts for Audi 100 S4 Turbo Quattro
• Outer CV joints for Audi 100 S4 Turbo Quattro
• Inner CV joints for Audi 100 S4 Turbo Quattro

Proactively renewing worn components such as a drive shaft or an outer CV joint saves time and workshop labour down the line, ensuring your Quattro system performs flawlessly in all driving conditions.

Why buy from CVJoint24?

CVJoint24 is the international shop of a Swedish driveline specialist, dispatching high-grade parts across the European Union from our central warehouse in Helsingborg, Sweden. We offer in-depth technical knowledge of drivetrain components for the Audi 100 S4 Turbo Quattro and other classic performance cars. When you order from us, you benefit from premium build quality, reliable fitment, and experienced technical support. We stock durable spare parts engineered to withstand demanding driving conditions so your car receives the care it deserves. With swift dispatch directly across the EU, we help DIY mechanics and garages minimise ramp time and return vehicles to the road quickly. Use our clear vehicle selector to find the exact match for your Audi, and enjoy high-calibre parts from a dedicated driveline specialist.