MBSpeedbird
New Member
My wife’s 2003 C180 (W203) -classic auto saloon has developed a fault last night with the central locking. After the battery went flat (mostly used on short journeys - but has a new (3mths) Varta battery) the key fobs would not open the doors.
Used the mechanical key to open drivers door (alarm siren went off), opened the bonnet and disconnected the battery to stop the siren. Checked battery charge only 11.3 volts. Put car battery on trickle charge over night (13.4v) and checked the batteries in both fobs. OK
Reconnected the car battery and alarm siren sounded off. Tried pressing key fob to close/open car, still doesn't work. After 20 seconds siren goes off, but indicators flash. After a minute all is quite and peaceful !!
Tried to restore the factory setting by pressing lock/unlock buttons simultaneously for six seconds/until little battery led flashed twice. Still nothing, Tried again with only a few mm from the door handle. Still nothing.
Tried again, with only a few mm from the key ignition port, still nothing.
Locked it all up with mechanical key, and tried sequence again, still nothing.
Any idea’s to allow some part of “Father’s Day to be stress free and take away the worry of going into the clutches of a MB dealership who wants a blank cheque just to diagnose the fault before presenting you with a bill to repay the national debt!
In anticipation of a favorable result -many thanks to the M C members reading this thread
Used the mechanical key to open drivers door (alarm siren went off), opened the bonnet and disconnected the battery to stop the siren. Checked battery charge only 11.3 volts. Put car battery on trickle charge over night (13.4v) and checked the batteries in both fobs. OK
Reconnected the car battery and alarm siren sounded off. Tried pressing key fob to close/open car, still doesn't work. After 20 seconds siren goes off, but indicators flash. After a minute all is quite and peaceful !!
Tried to restore the factory setting by pressing lock/unlock buttons simultaneously for six seconds/until little battery led flashed twice. Still nothing, Tried again with only a few mm from the door handle. Still nothing.
Tried again, with only a few mm from the key ignition port, still nothing.
Locked it all up with mechanical key, and tried sequence again, still nothing.
Any idea’s to allow some part of “Father’s Day to be stress free and take away the worry of going into the clutches of a MB dealership who wants a blank cheque just to diagnose the fault before presenting you with a bill to repay the national debt!
In anticipation of a favorable result -many thanks to the M C members reading this thread