Hi i need help.
I have a M reg C180 and all of a sudden the alarm is playing up it wont lock and then if it does lock i have problems undoing it again.
It is a factory fitted one and i don't have any door locks aswell which makes matters worse.
I have been told the boot lock should open the doors but this doesn't either.
I have tried to change the batteries in the remote but still the same.
Also noticed to day if i dip the clutch the car stalls,.
Could this have anything to do with the alarm and immobiliser???
Any help would much appreciated

Just to give this another view I'll bump it to the top with a most pertinent question.

What year model are you talking? with US models one can sort of sort out an era with simple sales designation: like a C220 was only built to 97 and a C230 would be after 98, but most of us don't know such info about euro cars and besides that they seem to make so many who could possible tell. I can't even be sure whether you have a 202 or 203 car. The systems involved changed a lot over those models.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician