The engine maintenance light keeps coming on. I've had it to various mechanics and they cannot trace the problem and end up re-setting the light. Only to have it go on the very next day.
I'm at a loss as to what is causing this. Can give me an idea what to look out for or suggest to the mechanics to look at? Everytime I take the car in, the maintenance light does not switch on when they test it. It seems to come on if I drive over an irregular stretch of road.