[mistikempire]

I have a e92 335d and each time im on the moterway, after going over 50mph the car suddenly gets this dashlight (shown below) and then losses all its power.

This problem has left me stuck on the moterway 3 times, i have to pull over an switch the car off and then its ok again.

Im going to get it diagnoses but could anyone before hand give me clues on what it might be so that i know abit about it before the mechanic feeds me a bunch of stories.