neun sechs vier

My OPC was tasked with fixing the ABS light/alarm coming on. They plugged in the diagnostics and found the right rear sensor was faulty.

How long does it take to replace the one sensor assuming the sensor bolt comes out without a fight?

Is there anything else in the way that needs to be dis-assembled?

Just hoping that wool is not being pulled over my eyes. I'd be grateful for some advice and photos if anyone has any handy. (My car is still with Porsche OPC.)

1992 C2

wallra

I just looked up book time on alldata 0.7

neun sechs vier

Thanks Wallra,
It doesn't sound like the hundreds of £GBP being suggested then. They've talked about getting the whole hub apart. Do you know if the brake caliper or disk shield needs to come off or is it just the wheel?

-nick

Single bolt and it pulls right out. Assuming nothing is rusted together. No need to dismantle anything else if I recall. If you can change a tire, you can change the sensor.

In a wet, rust-prone, climate, the sensor may just have rusty iron flakes on the magnet that need cleaned off. If the shop doesn't know or suggest that before replacement, I would find a different shop.

Goughary

I agree w nick. Likelihood of the sensor going is small. You need to take it out and clean it. Then clean the teeth on the axle that it reads. And see if it is still "faulty"

My 11 yr old daughter could do this job. So don't let it scare you. Just jump in and do it yourself...it'll take literally a few minutes once the wheel is off. If for some reason the little Allen that holds it in rounds itself out, go ahead and let the shop fix it. But outside that, its simple and easy...diy for cleaning is practically free...

neun sechs vier

Thanks for all your replies.

This is something I could tackle myself but the car was due for a service and the ABS fault could be traced by them. I just needed some advice after receiving a service report suggesting they were pricing the job to change the sensor at +£600.00, with the service cost on top. I'm sure they are mistaken.

FlyinTomato

recently had similar problem on the front. cleaned the sensor and ground myself. issue cleared up. free fix.

C4inLA

Does anyone know if dash light stays on if a single sensor faults? Was the warning light on before service? If you want to go deeper, simple resistance test with multimeter to confirm not shorted ... Think I saw specs for test in Adrian's book, not sure.....

deadendd9009

If a single sensor is faulty, yes the light will remain on. My light was intermittent, locking up a brake would have the light come on and stay on until I the system saw the sensor was registering ok. Cleaning all 4 sensors resolved my issue permanently, your result might differ depending how dirty your sensors are..

i would clean the sensors first before breaking out the multimeter, you'll be suprised.

Harry Apps

I think they need to be told that they are mistaken - sensor is listed at D911 for c £142 and should be available much cheaper elsewhere.