[M2RTY]

Hi all

Had my rear disks and pads replaced 2 years ago. 2010 e93 with 90k on cloak.

Had approx 35000 miles left on the little countdown when you start the car

Today, it flagged up 1500 miles and after a 25 mile trip it went down to 1400 miles

It’s not warning me as yet. Checked pads and there’s 50% left on them easy, possible a lot more. Disks are as new, no lip etc.

Could it be a fault on the computer? Last time it was serviced it shows 56% rear and 75% left on fronts. That was 4 months ago

Or a faulty wear sensor?

Can I reset or change the amount left via DCAN Cable (which I have)

Thanks

[mjn77]

Check the wear sensor cable has not rubbed on soemthing. I had something similiar.

[Jklad]

My brake pad wear sensor used to go off at random every so often. You can just eyeball them like you did and then follow the steps reset the dash warning.

[labrador]

Sounds like a faulty sensor.

You can try measuring the resistance of the sensor. New ones should be 0, and there is a second stage, IIRC, 170 ohms.

[M2RTY]

Sensor triggers the light on the dash though? Not the countdown? Cheers

[mjn77]

Originally Posted by M2RTY

Sensor triggers the light on the dash though? Not the countdown? Cheers

The sensor is two stage.

[M2RTY]

I know the sensor is two stage but this is for the Amber and red warning lights on the dash, it has nothing to do with the countdown which is based on mileage

[Wolf 335]

I took that sensor out few years ago. I cut the head and joined the two wires together. Countdown always stays at max.

[Welcome to NBA Jam]

Originally Posted by M2RTY

I know the sensor is two stage but this is for the Amber and red warning lights on the dash, it has nothing to do with the countdown which is based on mileage

The mileage changes automatically when the different stages are hit. The first stage decrements the mileage. The second stage adds a warning light.

[M2RTY]

Cheers i’ll Whip it off and replace it. Thanks

[labrador]

Yes, the “BRAKE” light turns amber and sometimes red. This is my second set of pads with the rotor, therefore they have a slight lip at the edges. The pads still have iirc 4-5 mm or so. Sometimes the car on lift symbol also showed up.

I cut the old cable but left the sensor head in the pad (hard to remove). Tie the wires, left the ignition on (engine off), and all back to normal. just need to remember to check the pads periodically.

Originally Posted by M2RTY

I know the sensor is two stage but this is for the Amber and red warning lights on the dash, it has nothing to do with the countdown which is based on mileage