Z4 Yellow warning lights

[pete2223334]

Hello,

Having a bit of trouble, hoping someone can help.

I have an issue where the parking light and traction light come on yellow and stay on. After a while, and what seems to be after I drive over uneven ground, they go out again (after turning the car off and back on).

I told my garage about this at it's major service yesterday (of course as it happened the lights weren't on when it was in the garage!). He did a diagnostic check and could see absolutely nothing wrong. About 2 hrs later, guess what, he lights returned until this morning!

Having read around the forum it seems like this is a loose connection (if it was a sensor or control unit presumably it would have shown up on the diag check yesterday?

So any ideas what it might be and how to find the fault??

Cheers!!

 

[philhotmail]

I would start by cleaning both abs sensors on the front wheels.try this if it does not fix clean both rear sensors also.use something like wd40 to clean..if this does not work it may be either of two pressurs sensors beneath brake master cylinder.make sure electrical connection to these are clean..if this doesn't fix it a pressure sensor may have failed.about £200 job to fix..hope this helps regards phil...