Brake Linning Warning 735se

Hello-does anyone know which wires to short out to put this warning message out? my '89 735ise has new pads,but I can't get rid of this annoying message.I've been told that a wire or connection must be open circuit---HELP!!!!!

I agree. The brake pad wear sensor wire is cheap from a dealer and the whole point of it is a) a safety warning, b) stops you naffing up your discs which are a bit more expensive than the wear sensor wire!

If I rember rightly you have two indicators on the E32 braking system, one on the drivers rear and one on the passenger front, they use the closed loop system ie one wire goes into the sensor and loops back out, as the pad wears down it gets to a point where the disc cuts the wire and causes open circuit, then the lady of the bongs starts to nag you to change the pads.

the sensors can be obtained from places like partco or other major supliers, I paid £3.99 for mine, from BMW they would not be much more than that.

As for fitting, simply plug one end into the socket and clip the other end into the pad, no resetting needed as the CCM will check the circuit next time you start up and will show all clear.

Hope this helps

Edited by tdc111

Chas,

You may get a warning from the CCM if the bump has dislodged the plug slightly, this would cause a loose connection which would be picked up when the CCM fires a check voltage around the circuit and gets an out of parrameter response.

Might be worth checking the plugs on the sensors and maybe giving them a good clean up