34526791225 Rear ABS Sensor | BMW 320i 328i 428i, Left or Right

34526791225 rear ABS sensor for BMW, left or right

34526791225 Rear ABS Sensor – Rear Left or Right ABS Wheel Speed Sensor for BMW 230i 320i 328i 330i 335i 430i, 34526884421

Dhs. 124.50

34526791225 Rear ABS Sensor for BMW 320i, 328i, 428i and Related Models

This 34526791225 rear ABS sensor is an aftermarket wheel speed sensor for the rear axle of several BMW models, and the supplier lists it for either the left or the right rear wheel. It is also sold under the number 34526884421. Easy Life Markets offers it as a single sensor, which is what most people need: one corner has thrown a fault code and that corner's sensor has to be changed.

The sensor sits in the rear wheel carrier and reads the rotation of the wheel. The car uses that signal for more than anti-lock braking. On a modern BMW the same four wheel speed signals feed the stability control, the traction control and, on many cars, the tyre pressure warning. That is why one bad sensor can light up several warning lamps at once. The anti-lock braking system article gives a good overview of how the wheel speed signals are used.

What You Get

1 x ABS wheel speed sensor for the rear axle, left or right

The supplier's listing gives a pack quantity of one. Fixing bolts and clips are not listed as included, so keep the hardware from your old sensor.

Specifications

Part type: ABS wheel speed sensor
Position: Rear, left or right
Reference numbers: 34526791225 (34 52 6 791 225), 34526884421 (34 52 6 884 421)
Other interchange numbers given by the supplier: 2ABS2715, ALS2724, AB1080, 51515, V20725197
Supplier part number: A0032A0032
Brand: Unbranded aftermarket replacement
Country of manufacture: China, according to the supplier
Quantity: 1
SKU: CJQT263936701AZ

Compatibility

The supplier's listing title names the BMW 230i, 320i, 328i, 330i, 335i and 430i. Its detailed vehicle list gives years for three models:

BMW 320i, 2012–2018
BMW 328i, 2012–2016
BMW 428i, 2014–2016

No year range is given for the 230i, 330i, 335i or 430i, and the supplier itself warns that its vehicle list may not be fully accurate. With BMW parts the model badge is a poor guide anyway, because the same badge was used on different chassis generations with different sensors. The part number is what counts. Here is how to check:

Read the number on the old sensor. BMW sensors normally carry the part number on the sensor body or on a tag on the lead. You are looking for 34526791225 or 34526884421.
Look it up by VIN. Enter the last seven characters of your VIN in a BMW parts catalogue and find the rear pulse generator or wheel speed sensor. Compare the number shown with the two above.
Ask us. If you cannot find the number, send us your VIN and we will help you check it against the reference numbers.

The supplier also asks owners of right-hand-drive cars to take extra care when choosing parts.

How a Failing Rear Sensor Shows Up

ABS, stability control and brake warning lamps come on together
A tyre pressure monitoring warning that will not reset, on cars that work out tyre pressure from wheel speed
A stored fault code naming the rear left or rear right wheel speed sensor
Warnings that appear only after a few minutes of driving, or only in wet weather
A lead that is cut, crushed or pulled out of its clips after suspension or brake work

Read the fault memory before you buy. The code tells you which corner is at fault. A damaged magnetic encoder ring on the wheel bearing gives the same symptoms as a dead sensor, so look at the bearing as well if the car has high mileage.

Installation Notes

Raise the rear of the car and support it safely. The sensor can usually be reached with the wheel removed.
Unplug the old sensor at its connector and release the lead from every clip along the suspension arm and wheel arch.
Remove the fixing bolt. If the sensor is stuck in the wheel carrier, twist it gently to free it. Do not lever it out, because the plastic body breaks easily and the broken tip then has to be drilled out.
Clean the bore, fit the new sensor and tighten the bolt to the figure in the service manual.
Route the new lead exactly as the old one ran and press it fully into each clip.
Clear the fault memory. The warning lamps normally go out after a short drive.

The supplier reminds buyers to wear protective gear when fitting car parts. The ABS and stability systems are safety systems, so if you do not have a scan tool or are not confident with the job, have a qualified mechanic fit the sensor and clear the codes.

One Sensor or Both?

You only need to change the sensor that has failed. Rear sensors on the same car are the same age, though, and some owners replace both while the car is in the air. That is a choice, not a requirement. This listing is for one sensor. If you want to do both rear wheels, order two.

Who This Sensor Is For

This part is for BMW owners and independent workshops who have a confirmed rear wheel speed sensor fault and a matching part number. It is a simple job for anyone who does their own brake work.

Common Questions

Is this a genuine BMW part? No. It is an unbranded aftermarket replacement sold under the reference numbers 34526791225 and 34526884421. It is not made by BMW.

Does it fit the front wheels? No. The supplier lists it for the rear axle only, left or right.

The listing names the 330i and 430i but gives no years. Will it fit mine? We cannot confirm that from the supplier's information. Check the part number on your old sensor or by VIN before ordering the 34526791225 rear ABS sensor.