[Ajerthan]

Originally Posted by N8N

I saw someone allude to this in a previous post, but the sensor has two stages, one is probably already worn, the sensor starts wearing long before the service indicator comes on. This is how the car estimates how long your brakes will last - it knows when they were new, it knows when it hit the first stage, and it extrapolates from there how long it will be until the pads hit the wear limit and trip the "replace brakes now" portion of the sensor.

So... if you don't replace the sensor, the car still thinks that the brakes are somewhere between half worn and worn out. The way I understand it nobody would ever replace brake pads before the sensor hit the first stage because it would be false economy, the sensor is less expensive than 1/2 the cost of the pads (assuming that the sensor hits the first stage at half worn.)

Thanks for a constructive post. Something I was looking for instead of just "change sensors" and people flaming.

[MEGA]

Have you changed the sensor yet?

[Ajerthan]

Originally Posted by Ajerthan

doughboy its the red brake warning light on the centre dash. (same one u see when your handbrakes on)

Mega I've replaced the sensors but I did read somewhere on the forums that they don't need to changed if the pads are not fully worn. E.g. metal touch metal. So I don't know...

Originally Posted by MEGA

Have you changed the sensor yet?

^