ABS rings for Volvo S40 D4

ABS rings for Volvo S40 D4

Maintaining the braking system on a torquey diesel like the Volvo S40 D4 is vital for both safety and driving feel. The ABS ring, also known as an ABS reluctor ring, is a small but essential component within the car's anti-lock braking system. For the Volvo S40 D4 in particular, which regularly handles substantial torque and diverse driving conditions, keeping these rings in peak condition is crucial. At CVJoint24, we understand the technical requirements of this specific model and offer components matching original equipment specifications to keep your car safe on the road.

Our range of ABS rings is carefully chosen to withstand demanding European conditions, where road salt and moisture frequently accelerate corrosion. When choosing a spare part from us, you can rest assured it is made from durable materials designed to last. We focus on supplying parts that not only fit physically, but also communicate accurately with your car's electronic control units—critical for avoiding fault codes and ensuring safety systems engage precisely when required.

What does an ABS ring do on a Volvo S40 D4?

The ABS ring on your Volvo S40 D4 acts as a pulse generator for the ABS wheel speed sensor. Fitted onto the CV joint, it rotates at the exact speed of the wheel. The ring features a specific number of teeth or magnetic points that the sensor reads to measure rotational speed. This data is fed continuously to the car's ABS control unit. If the unit detects that a wheel is rotating slower than the others during braking—indicating it is beginning to lock—the system modulates brake pressure to that specific wheel.

For a Volvo S40 D4, this system is especially important, as the engine's power and the vehicle's weight distribution demand precise control under heavy braking. Without a functional ABS ring, the system cannot measure speed correctly, causing the ABS to malfunction or trigger unnecessarily. This affects not only braking performance but also integrated stability and traction control systems, making the ABS ring a vital part of your car's active safety.

Common signs of wear

The most frequent issue with ABS rings on the Volvo S40 D4 is corrosion. Over time, rust builds up beneath the ring, exerting outward pressure from within. Because the ring is made of hardened steel and press-fitted, this pressure often causes it to fracture. A cracked ring disrupts the spacing between the teeth, confusing the ABS sensor. A clear symptom is the ABS warning light illuminating on the dashboard, often accompanied by a message that the braking system requires service.

Another common symptom is the ABS activating under normal, low-speed braking just before the car comes to a complete halt. You may feel a pulsation in the brake pedal and hear the characteristic chattering noise from the ABS pump, even on dry tarmac. If your Volvo S40 D4 behaves strangely when braking or if warning lights appear, a visual inspection of the ABS rings on the CV joints is usually the first diagnostic step.

Choosing the right ABS ring

When purchasing a replacement ABS ring for your Volvo S40 D4, it is essential to check specific technical dimensions. The most critical details are the tooth count and the internal diameter. Throughout production years, Volvo used different variations depending on chassis numbers and drivetrain setups. Counting the teeth on your old ring is a reliable way to verify you are ordering the correct part. A ring with the wrong tooth count will transmit incorrect speed signals, stopping the ABS system from working properly.

To make selecting the right part straightforward, we recommend selecting your Volvo S40 D4 by make, model and engine variant in our shop. This filters out incompatible components and displays only parts suitable for your specific car. We also provide technical support if you are unsure which variant you need. Remember that a correctly chosen ABS ring saves both time and money during installation, as it seats with the proper interference fit and delivers a reliable signal straight away.

Related parts to inspect

Be sure to check these related pages for the same vehicle when working on the ABS ring:

When one drivetrain component shows signs of wear, related parts often require attention too. Comparing these exact pages for the Volvo S40 D4 makes it easier to determine whether an issue lies with the ABS ring itself or another part of the driveline.

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

• Volvo S40 D4
• Drive shafts for Volvo S40 D4
• Outer CV joints for Volvo S40 D4
• Inner CV joints for Volvo S40 D4

Replacing worn components alongside your ABS ring can prevent future breakdowns and save on labour costs in the long run. A healthy drivetrain ensures the power from your D4 engine reaches the wheels smoothly and quietly.

Why buy from CVJoint24?

CVJoint24 is your trusted partner for specialist drivetrain parts. As the international shop of a Swedish driveline specialist, we offer an extensive inventory that few suppliers can match. We know that accurate fitment is vital, which is why we provide a reliable fitment guarantee on our entire range. When shopping with us, you can trust that you will receive the correct part for your Volvo S40 D4, whether you need an ABS ring or a complete drive shaft.

We appreciate how important it is to get your car back on the road quickly. Operating from our central warehouse in Helsingborg, Sweden, we dispatch rapidly across the European Union. Combining technical expertise with an easy-to-use shop where you can choose your vehicle by make, model and engine, we make it simple for both professional garages and DIY mechanics to maintain their vehicles with premium car parts. Welcome to CVJoint24—your drivetrain specialist.