3 Series E36 M3 (S50) COUPE
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Disconnecting and connecting battery
Safety instructions for handling vehicle battery.
Disconnect battery:
If the battery is not disconnected when working on components, cable connections etc., faults can occur in the fault
memories of the relevant control units.
If the Repair Manual contains an instruction to disconnect the battery before carrying out a specific repair job, for safety
reasons, always follow this instruction.
Caution!
Disconnecting the vehicle battery will cancel the fault memories of control units. For this reason, before
disconnecting the battery, always interrogate the fault memories and print out the faults on the printer attached
to the BMW Service-Tester. Investigate stored faults.
Once the battery has been disconnected, the radio can only be restarted with the radio code; for this reason,
ask the customer for his/her radio code card beforehand. Note stored stations and restore them after
connecting the battery.
Stored settings of the on-board computer and clock will also be lost.
On door closing systems with infra-red operation, all keys must be recoded. Additional instructions, refer to
Electrical Troubleshooting Manual.
Connecting up battery:
Caution!
Finger-jam protection on window regulators does not function.
E36:
Power window must be re-initialized.
RA Disconnecting and connecting battery
BMW AG - TIS
10.02.2013 04:57
Issue status (12/2007) Valid only until next DVD is issued
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