First post - 190E 2.5-16 Electrical problems
 

Hi everybody! First post and I'm after help. Basically sometimes my car wont switch off. We know the ignition switch works - switched live parts like electric windows turn off as they should - but the ignition stays live. If I stall the engine then the ignition lights come on as they normally would. The OVP relay and fuel pump relay seem to be fine, they are being activated by something.

Any suggestions?