Electrical · Wallington SM6

ABS Sensor Replacement for Wallington, Six Minutes Away

We're about six minutes from Wallington, straight up London Road to Soho Mills in Hackbridge. If the ABS light has come on, we find which wheel is affected and why before quoting, and ABS sensor replacement starts from £89.

Get an instant price Call 020 4629 9469

★★★★★ 4.9/5 from 87 Google reviews
~6 min from Wallington
Mon–Sat 8am–8pm

Audi SQ5 in for brake and wheel-speed work at KITH Cars Garage & Bodyworks, Hackbridge

ABS Sensor Replacement for Wallington drivers

School-run streets, Wallington Green and a switched-off ABS

Wallington's school-run traffic is heavy. The grammar schools and local primaries mean parents parking on nearby residential roads at drop-off and pick-up, with children crossing between cars. Those are exactly the streets where you may need to stop suddenly. ABS keeps the wheels from locking so you can brake hard and still steer, and stability control keeps the car straight. If the ABS light is on, both are off, and in the wet that can make a real difference.

The A232 Croydon Road and Acre Lane crossing at Wallington Green queue at peak times, and stop-start driving means more brake work over the years. Every pad or disc change is a chance for a sensor to be disturbed, and a sensor that's corroded in the hub can crack when it's moved. Around Wallington Town Hall and the town centre, tight parking and kerbs add knocks to wheels and hubs. On newer family SUVs, a failed sensor can also turn off hill-hold and auto-hold, which is often what drivers notice first, before they connect it with the ABS light.

We read the ABS module to find the wheel and fault type, compare live wheel speeds and test the sensor, wiring and connector. We also check the reluctor ring or bearing encoder, and the bearing for play. You get a written quote explaining the cause, and we fit OE or OE-equivalent parts. After the repair, we clear the codes, run any calibration the car needs and road test it to confirm all four wheel speeds match.

Being so close, you can drop the car off and walk home, or wait for many sensor jobs. From the town centre it's Woodcote Road north, Manor Road across the A232 at Wallington Green, then London Road to Hackbridge, about 1.7 miles. Collection is available if you'd prefer. Our 3-month workmanship warranty covers the repair.

Electrical

ABS Sensor Replacement: what’s involved

Each wheel has a speed sensor that reads a toothed or magnetic ring turning with the hub or driveshaft. The ABS module constantly compares the four signals. If one wheel slows too quickly under braking, the system releases and reapplies that brake to stop it locking. The same signals feed traction control, stability control and often the speedometer, hill-hold and tyre pressure warning.

Older cars use passive sensors that generate their own signal. Most modern cars use active sensors, which are powered by the ABS module and often read a magnetic encoder built into the wheel bearing seal. Sensors sit right next to the brakes, exposed to heat, water, salt and brake dust, so corrosion, damaged wiring and failed connectors are common. When a signal drops out, the system switches ABS and stability control off and lights the warning. Your normal brakes still work.

From £89Written quote first

45 minutes–2 hoursTypical time in the workshop

3 monthsWorkmanship warranty

4.9★87 Google reviews

Signs of an ABS sensor fault

ABS warning light on

A steady ABS light means the system has switched itself off. Normal braking still works, but the wheels can lock under heavy braking.

Traction and stability lights too

Because they rely on the same wheel speed signals, the traction control or ESP light usually comes on with the ABS light.

Light comes and goes

An intermittent warning, often after bumps, in wet weather or at a certain speed, usually points to damaged wiring, a loose connector or a corroded sensor.

ABS pulsing at low speed

If the pedal pulses and the ABS activates when stopping gently, a sensor may be giving a false reading from a dirty sensor or a cracked reluctor ring.

Speedometer or tyre warning faults

On cars that take road speed or tyre pressure monitoring from the wheel sensors, a faulty sensor can upset the speedometer or set a tyre warning.

Other systems disabled

Hill-hold, cruise control, stop-start and some electric parking brake functions may stop working when a wheel speed signal is missing.

When should it be done?

ABS sensors have no replacement interval. They are replaced when they fail or when their wiring is damaged. Get the car checked as soon as the ABS light comes on, because the car won't stop as well in an emergency on a wet road without ABS and stability control. An ABS warning light that stays on is also an MOT failure. Faults often show up after brake, hub or suspension work, when a sensor or its wiring may have been disturbed.

ABS, traction or stability warning light on
Intermittent warnings in wet weather or over bumps
Warning lights after brake, wheel bearing or suspension work
Before an MOT if the ABS light is showing

How we replace an ABS sensor

Check-in and symptomsWe ask when the light appears and whether any work has been done recently, as disturbed wiring after brake or suspension work is common.
Diagnostic scanWe read the ABS module fault codes to identify which wheel is affected and whether the fault is signal, circuit or plausibility related.
Live data and testingWe compare live wheel speed readings on a road test or ramp and test the sensor circuit with a multimeter or oscilloscope to separate sensor, wiring and ring faults.
Inspect the ring and bearingWe check the reluctor ring or magnetic encoder for cracks, corrosion or damage and check the wheel bearing for play, as either can cause a false signal.
Written quoteWe explain the cause and give you a written quote. If the encoder is built into the wheel bearing, we'll explain why the bearing may need replacing.
Replace the sensorWe carefully remove the old sensor, which is often seized in the hub, clean the mounting, and fit the new sensor with its wiring routed and secured correctly.
Clear codes and road testWe clear the fault codes, road test to confirm all four wheel speeds read correctly and the warning lights stay off, and run any calibration the car needs.

Parts we fit

Sensors must match the car exactly. Active and passive types are not interchangeable, and connectors and lengths vary between models and even between axles. We fit OE or OE-equivalent sensors from manufacturers such as Bosch, ATE or Continental. Where the wiring is damaged we repair it properly with sealed connectors, and where the fault is in a reluctor ring or a wheel bearing encoder, we replace that part rather than just the sensor.

OE or OE-equivalent ABS wheel speed sensors
Reluctor rings where cracked or corroded
Wheel bearings with integral magnetic encoders where required
Sensor wiring and sealed connector repairs

How long it takes

45 minutes–2 hours

A straightforward sensor swap often takes under an hour. Seized sensors, wiring repairs or a reluctor ring or wheel bearing replacement take longer. Most jobs are completed the same day.

What’s included

ABS system fault code scan
Wheel speed live data check
Sensor circuit and reluctor ring inspection
Correct replacement sensor fitted
Fault codes cleared
Road test to confirm the warning lights stay off

Getting here from Wallington

From Wallington to our Hackbridge workshop

From Wallington town centre, head north on Woodcote Road (A237) past the station onto Manor Road, cross the A232 at Wallington Green and continue straight along London Road (A237) to Hackbridge. Soho Mills is on London Road near Hackbridge station.

Go north on Woodcote Road, Manor Road and London Road (A237) to Hackbridge, about six minutes. With only the ABS light on, drive gently.

Directions from Wallington

About Wallington

Wallington is a settled residential suburb in the east of the London Borough of Sutton, with a compact town centre around Woodcote Road, Stafford Road and Manor Road. Housing is mostly Victorian, Edwardian and interwar semis and terraces, with flats near the station and the rebuilt Roundshaw estate to the south on the former Croydon Airport site. It is popular with families, helped by well-known grammar schools, and commuters using Wallington station. Driving is generally straightforward, though the town centre and school streets get busy at peak times.

Places nearby: Wallington Town Hall, Wallington Green, Holy Trinity Church, Beddington Park, Wallington Square, Wallington station

Postcodes: SM6 · London Borough of Sutton

More about KITH for Wallington drivers

Questions

ABS Sensor Replacement in Wallington: your questions answered

Can I drop the car off before the school run and pick it up after?

Yes. We open at 8am, and many ABS sensor jobs are finished within a few hours. We'll call you with the diagnosis and quote before any work begins.

My auto-hold stopped working at the same time as the ABS light. Are they linked?

Very likely. Auto-hold and hill-hold use wheel speed signals, so a failed sensor usually switches them off. Once the sensor is fixed, they normally work again.

Will the ABS light fail my MOT?

Yes. An ABS warning light that stays on is an MOT failure. Fixing it before the test saves a retest and gets your ABS working again.

Is it safe to drive with the ABS light on?

The car will still brake normally, so you can usually drive it carefully to the garage. But without ABS and stability control the wheels can lock under hard braking, so leave extra distance. If the brake warning light is on as well, get advice before driving.

Will an ABS light fail the MOT?

Yes. An ABS warning light that stays on, or doesn't come on when the ignition is switched on, is an MOT failure. The same applies to the electronic stability control warning on cars that have it.

Can I just clear the code?

If the fault is still there, the ABS module will find it again, usually within a short drive. Clearing codes without finding the cause just delays the repair.

Why might I need a wheel bearing as well?

On many modern cars the magnetic ring that the sensor reads is built into the wheel bearing seal. If that encoder is damaged or the bearing has excessive play, a new sensor won't cure the fault, and the bearing has to be replaced.

Why did the light come on after my brakes were done?

ABS sensors and their wiring sit close to the brakes and hubs, so they can be knocked, stretched or left unplugged during brake or suspension work. Sometimes an old sensor that was already corroded fails when disturbed. A quick scan shows which wheel is affected.

Instant quote

Price your ABS sensor replacement now

Enter your reg and we’ll look up your car and price the job from our own labour rates and the book time for your model. Then book it in with a fixed written quote before any work starts.

Free, about 30 seconds, no sign-up
Parts, labour and VAT included
3-month workmanship warranty
Collection from Wallington can be arranged

“It’s rare to find a garage you can truly trust. Fair price, brilliant customer service.”Thinushan K. · ★★★★★ Google

Prefer to talk? Call 020 4629 9469 or WhatsApp us.

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