Hi
Mercedes 300E 1996 diesel. I cannot start my car because the immobiliser will not disengage. I have changed the batteries in the key fob, I have tested them to see if the IR light comes on and the recovery mechanic checked them on his machine. I have checked the manual to synchronise the sender/receiver (press fob twice) and its still no good (my spare key is only 6 months old, it cost me £120). When I turn on the ignition I get red/green flashing at the rear mirror receiver. The car cranks OK but will not fire. Is there anything I can do before I call out Mercedes tomorrow? I know one they are on the case it will cost me a fortune. In case it is relevant, the car is kept in a dry garage and is only used about once a fortnight.
TIA
Charlie Brown