malfunctions

Hello all, i hope you can help with this frustrating problem that is driving me mad. (W203 C180 KOMPRESSOR 1.8 2004) I recently changed out my signal bulbs for new ones and on inspecting all of the lights they seemed to be working fine. Recently a message has been appearing on my malfunctions...

Hi All, Recently of the evening ( and usually if it has been raining ) if I come to a stop and turn the engine off the main beam light appears on the instrument panel, then the headlights go off and various malfunctions appear. Sometimes it starts out as four malfunctions then it drops to...