C220 CDI Malfunctions then Gearbox Locks

[CallyJo]

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 three then down to one then back up to four again. If I try to start the car the gearbox has locked. However, when the AA guy eventually turned up it started no problem :Oops:

My mechanic cannot figure out the cause. Any advice would be appreciated.

Thank you

 

[television]

You car has the symptoms of a faulty SAM and maybe damp getting in the fuse box, Is your car a 202 rather than a 203 please

 

[CallyJo]

Hi T.V,

Thanks for your quick reply. It is a W203 53 plate

Cally

 

[television]

I think it will be the front SAM gone down,,putting the car on STAR would confirm this, do you have a good indie near you