ABS rings for Volvo S40 1.8 I
When the ABS warning light appears, replacing the ABS ring is often necessary. Here you will find durable ABS rings engineered for the Volvo S40 1.8 I saloon with front-wheel drive....
Products for ABS rings for Volvo S40 1.8 I
- Position: Front
- ABS teeth: 43
- Inner diameter: 66 mm
- Outer diameter: 82 mm
- Width: 10,5 mm
- Position: Front
- ABS teeth: 43
- Inner diameter: 66 mm
- Outer diameter: 78 mm
- Width: 8 mm
ABS rings for Volvo S40 1.8 I
An ABS ring, also known as an ABS reluctor ring, is a critical safety component on your Volvo S40 1.8 I. Mounted on the CV joint, this compact yet vital part works in tandem with the vehicle's ABS sensors to prevent the wheels from locking up during hard braking. For a car such as the Volvo S40 1.8 I, regularly driven on European roads exposed to road salt, slush and fluctuating temperatures, high-quality components are essential. Corrosion is the primary enemy of an ABS ring, as rust build-up underneath can cause the metal to expand and eventually crack. At CVJoint24, you will find a carefully selected range of ABS rings specifically engineered to fit your car's exact specifications. We appreciate the importance of precision when it comes to the braking system and supply only components that meet our rigorous standards for durability and performance, keeping you safe in all driving conditions.
What does an ABS ring do on a Volvo S40 1.8 I?
The primary job of the ABS ring on your Volvo S40 1.8 I is to provide the electronic control unit with real-time, precise wheel-speed data. The ring features a series of teeth or slots that pass by a magnetic sensor as the wheel rotates. This rotation generates an electrical signal—a square wave—that the ABS module uses to determine whether a wheel is about to lock up relative to the others. If the system detects a discrepancy, hydraulic valves instantly modulate brake pressure to maintain steering control and prevent skidding. Without a functional ABS ring, the system cannot read wheel speed accurately, which usually causes the entire ABS system to deactivate as a safety precaution. For any Volvo S40 1.8 I owner, it is therefore crucial to address the issue as soon as you suspect a ring is corroded, cracked or missing teeth.
Common signs of wear
The most frequent sign of a failing ABS ring on your Volvo S40 1.8 I is an illuminated ABS warning light on the instrument panel, indicating a diagnostic trouble code in the system. The fault is often intermittent at first, with the light flickering on and off, before remaining permanently lit as the damage worsens. Another distinctive and unsettling symptom is unwanted ABS activation during normal braking at low speeds on dry tarmac. You will typically feel a pulsing or juddering through the brake pedal accompanied by a buzzing sound from the ABS pump. This happens because the ring has cracked due to corrosion underneath, creating an unnaturally wide gap between two teeth. The sensor misinterprets this gap as a stopped wheel, triggering the ABS needlessly. Because the ABS reluctor ring sits in an exposed position right next to the wheel hub, rust expansion is by far the most common cause of failure.
Choosing the correct ABS ring
Selecting the right ABS ring for your Volvo S40 1.8 I requires precision and technical verification. Dimensions such as tooth count, internal diameter and width can vary depending on the exact model year and optional equipment. The most reliable way to find the right part is to filter by your car's make, model and engine variant here on cvjoint24.com. This removes the guesswork and ensures an exact fit. Before pressing on the new ring, it is essential to clean the seating surface on the outer CV joint thoroughly, removing all rust and debris. If the mounting seat is uneven, the replacement ring can crack during installation or sit out of true, generating faulty signals. To assist your search, use the links below to inspect related components for your model:
- Volvo S40 1.8 I (Model overview)
- Drive shafts for Volvo S40 1.8 I
- Outer CV joints for Volvo S40 1.8 I
Related parts to check
We recommend checking these exact pages for the same vehicle when working on the ABS ring:
When one drivetrain component shows signs of wear, adjacent parts on the same car often require attention too. Reviewing these exact category pages for the Volvo S40 1.8 I makes it easier to determine whether the issue lies solely with the ABS ring or another related driveline part.
This is particularly important on models where vibrations, play and unusual noises can travel across multiple components within the drivetrain. A quick check of related categories reduces the risk of replacing one correct part while overlooking a neighbouring component that contributes to the same problem.
Taking a proactive approach and renewing worn parts together saves you both time in the garage and money in the long run, whilst ensuring your vehicle's safety systems operate as intended.
Why buy from cvjoint24.com?
CVJoint24 is your dedicated Swedish driveline and transmission specialist, serving customers across Europe from our central warehouse in Helsingborg, Sweden. We combine in-depth technical expertise with a comprehensive catalogue of quality spare parts selected specifically for the Volvo S40 1.8 I. Our goal is to help you get the correct part first time by selecting your exact make, model and engine variant. We provide an exact-fit guarantee for complete peace of mind, knowing your parts will fit when ordered for the correct specification. We recognise that when a critical safety part like an ABS ring fails, you need a replacement without delay; that is why we dispatch promptly across the EU. Buying from a focused specialist means you receive not just premium car parts, but the backing of years of driveline expertise to keep your Volvo running reliably and safely.
Frequently asked questions about ABS rings for Volvo S40 1.8 I
How do I know if the ABS ring is broken on my Volvo S40 1.8 I?
The most common signs are an illuminated ABS warning light or the brake pedal pulsating during low-speed braking on dry roads. A visual inspection will often reveal whether the ring is cracked or heavily corroded.
Can I replace just the ABS ring or do I have to replace the entire CV joint?
On the Volvo S40 1.8 I, it is often perfectly fine to replace only the ABS ring if the CV joint itself is in otherwise good condition. This is a very cost-effective solution compared to replacing the whole joint.
How many teeth should the ABS ring have for the Volvo S40 1.8 I?
The tooth count can vary depending on the model year and equipment. It is therefore crucial to select your vehicle's exact make, model and engine variant, or count the teeth on the old ring, to ensure correct operation.
Are special tools required to fit a new ABS ring?
No complex special tools are required, but thoroughly cleaning the mating surface on the CV joint is critical. The ring is usually heated gently so that it expands, then shrinks securely into place as it cools.
Will a faulty ABS ring affect the vehicle inspection (MOT)?
Yes, if the ABS light is illuminated or the system does not operate correctly, the car will fail its roadworthiness inspection. It is regarded as a serious safety defect that must be rectified immediately.
Why do ABS rings crack specifically on the Volvo S40?
This is usually caused by corrosion building up underneath the ring on the CV joint mating surface. The expanding rust creates immense internal pressure, eventually forcing the hardened steel ring to split.