Hi Guys,

I have a Mercedes 1998 C class W202. My ignition does not work at all (does not grab the remote key nor turn), and the central locking completely dead.
However the lights, radio, clock do work, so new battery that is connected does work.

The remote keys both have been cleaned and the transponder checked and there is a signal. All fuses have been checked (that we know of, front and back fuse boxes)

To cut a long story short my boot closed shut with an unconnected dead battery in there. I managed to get a new battery connected (through the rear seat) but still no ignition and locking working.

I then read that if the alarm is not working correctly then it could cause many problems.

Is this true and if so how do you get to the alarm to disconnect and or replace?

Many thanks