ABS rings for BMW 3 Serie 320 SI E90
Need a replacement ABS ring for your BMW 3 Serie 320 SI E90? As the international shop of a Swedish driveline specialist, CVJoint24 provides high-precision drivetrain parts tailored to...
Products for ABS rings for BMW 3 Serie 320 SI E90
ABS rings for BMW 3 Serie 320 SI E90
The BMW 3 Serie 320 SI E90 is an exceptional car, developed as a homologation special for touring car racing, meaning every drivetrain component plays a decisive role in both performance and safety. The ABS ring, also known as an ABS reluctor ring, is a small yet fundamental part of your car’s braking and stability systems. On a precision-engineered car like the 320 SI E90, where handling dynamics are paramount, keeping these sensor rings in prime condition is vital. At CVJoint24, we understand the technical demands of this specific E90 variant and supply ABS rings built to meet exacting standards of durability and precision.
Owning a BMW 3 Serie 320 SI E90 means looking after the components that allow the drivetrain and safety systems to interact seamlessly. Because this model features a bespoke engine and suspension setup, there is no room for compromise on spare parts quality. Our range is meticulously selected to match your car’s factory specifications, whether for daily driving or enthusiastic weekend runs along winding country roads.
What does an ABS ring do on a BMW 3 Serie 320 SI E90?
The ABS ring on your BMW 3 Serie 320 SI E90 is fitted to the drive shaft and operates as a core component of the anti-lock braking system (ABS) and Dynamic Stability Control (DSC). The ring features a series of teeth or magnetic windows that pass a stationary ABS wheel speed sensor as the wheel turns. The sensor monitors the rotational speed of each wheel and relays this data directly to the electronic control unit (ECU). If the ECU detects that one wheel is decelerating significantly faster than the others under braking, indicating an imminent lock-up, it modulates hydraulic brake pressure to preserve steering control.
For a rear-wheel-drive saloon like the 320 SI E90, clean signals from the ABS ring are equally essential for traction control. A cracked, distorted or corroded ring feeds faulty readings into the control unit, causing driver aids to disengage or intervene abruptly at the wrong time. A sound ABS reluctor ring is therefore not just a braking component, but an integral part of the car's overall dynamic balance and your safety behind the wheel.
Common signs of wear and failure
The most frequent issue affecting ABS rings on BMW E90 models is rust and corrosion. Because the ring sits exposed to road grit, moisture and winter road salt, rust forms on the drive shaft beneath the ring. This corrosion forces the ring to expand outwards, causing it to crack or physically rub against the tip of the ABS sensor. A clear sign of this is an illuminated ABS or DSC warning lamp on the dashboard. You may also feel unwanted brake pedal pulsation at lower speeds during light braking, caused by false wheel-slip signals.
Other common symptoms include cruise control failure or erratic automatic transmission shifts, as these systems rely on accurate wheel speed data. If you detect a rhythmic scraping noise from the wheel arches, an expanded ABS ring may already be fouling the sensor face. Ignoring these warnings can lead to costlier repairs, including sensor damage, or compromised braking performance in an emergency.
Choosing the correct ABS ring
When selecting a replacement ABS ring for your BMW 3 Serie 320 SI E90, it is vital to verify the dimensions and tooth count of the reluctor ring. Even though the E90 range shares many platform parts, minor variations exist depending on production dates and factory equipment. The simplest and most reliable way to find the correct part on cvjoint24.com is to select your vehicle’s make, model and engine. This instantly filters out incompatible components, ensuring you order the right part the first time.
Always verify whether you need a front or rear ring, as well as the correct side (left or right). At CVJoint24, we provide comprehensive product specifications so you can easily compare dimensions with your original part when needed. Our ABS rings are manufactured from high-grade steel with anti-corrosion protection designed to withstand harsh European winters, delivering long service life and reliable signal accuracy.
Related driveline components to inspect
Be sure to check these dedicated category pages for the same vehicle when working on the ABS rings:
When one drivetrain component exhibits wear, adjacent parts on the same vehicle often warrant inspection. Cross-referencing these exact pages for the BMW 3 Serie 320 SI E90 makes it straightforward to establish whether an issue stems solely from an ABS ring or another connected component in the power transmission system.
This is especially critical on rear-wheel-drive performance saloons, where vibrations, driveline play and unusual noises can travel along the drivetrain. Taking a moment to inspect related assemblies prevents replacing a single component while overlooking an adjacent worn part that contributes to the same problem.
- BMW 3 Serie 320 SI E90
- Drive shafts for BMW 3 Serie 320 SI E90
- Propeller shafts for BMW 3 Serie 320 SI E90
- Propeller shaft centre bearings for BMW 3 Serie 320 SI E90
Why buy from CVJoint24?
CVJoint24 is your dedicated specialist for drivetrain and power transmission components. As an international specialist backed by Swedish driveline expertise, we possess in-depth technical knowledge of distinctive models like the BMW 3 Serie 320 SI E90. Rather than trying to cover every car part imaginable, we focus strictly on what we do best: driveline components. That focus means you receive expert technical guidance and parts engineered to fit your car accurately. Our precise vehicle selection system takes the guesswork out of ordering car parts online.
We know your time is valuable and having a car off the road is a major inconvenience. Operating from our central warehouse in Helsingborg, Sweden, we dispatch orders swiftly across the EU so you can get your BMW back on tarmac without delay. When you shop with CVJoint24, you receive top-quality parts backed by genuine driveline specialists. The right part, delivered straight to your door.
Frequently asked questions about ABS rings for BMW 3 Serie 320 SI E90
Do these ABS rings fit all BMW E90 models?
No, although many E90 models share components, the ABS ring can vary depending on engine variant and drivetrain. For the 320 SI E90, it is essential to check your exact vehicle details to ensure a precise fit.
Why does the ABS ring crack on my BMW 320 SI?
The most common cause is corrosion forming on the drive shaft beneath the ring. As the rust expands, it forces the ring outwards until it cracks or distorts, disrupting the signal reading to the ABS sensor.
Can I replace just the ABS ring, or do I need to replace the entire drive shaft?
On most BMW E90 models, you can easily replace just the ABS ring, provided the drive shaft is otherwise in sound condition and the mating surface is thoroughly cleaned of rust.
Which warning lights come on if the ABS ring is broken?
Typically, the ABS warning light, the DSC light (traction/stability control), and occasionally the tyre pressure or brake system warnings will illuminate, as these systems all rely on wheel speed data.
How do I know if the fault lies with the ABS ring or the ABS sensor?
A fractured ring often causes issues at low speeds (such as unwanted pedal pulsing), whereas a failing sensor usually triggers a continuous fault code. A visual inspection of the reluctor ring will often reveal cracks or swelling caused by rust.
Is the ABS ring on the 320 SI unique compared to a standard 320i?
They often share the same core suspension and driveline components, but because the 320 SI is a limited-production homologation special, you should always verify your exact model details and measurements to prevent any dimensional discrepancies.