5 Series E34 525tds (M51) TOUR
12 00 ...
Instructions for disconnecting and connecting battery
Observe safety instructions for handling vehicle battery.
Before disconnecting battery:
Turn off the ignition and other electrical loads/consumers to prevent sparking when reconnecting.
Note:
If the ignition is not turned off when the battery is disconnected, fault memories may be set in some control
units.
Important!
•
There is a danger of mixing up battery leads: If the battery positive and negative leads are the same
colour and you are in doubt, follow the polarity to the battery, then mark and cover the leads.
•
On vehicles with radio code: After disconnecting the battery, the radio code must be re-entered. Therefore
obtain the radio code card from the customer beforehand. Note stored stations and restore them after
connecting the battery.
•
Stored settings of the on-board computer and clock will also be lost.
•
All available central keys must be recoded for cars with first generation infrared transmitter locking
systems.
General notes on disconnecting battery:
•
Do not disconnect battery leads and leads from alternator and starter motor while engine is running.
•
Cars with IBS on battery negative terminal:
Do not under any circumstances pull/lever off pole shoes by force.
Do not under any circumstances release socket-head cap screw of IBS.
•
Detach terminal of battery negative lead from car battery and second battery if fitted. Cover battery negative
terminal(s) and secure.
•
When work is carried out on the electrical system, faults may be caused in the fault memories of some control
units when the battery is connected.
•
When installing battery terminal: Tightening torque 61 21 1AZ
.
After connecting battery:
Important!
The scope of application of some systems may be restricted after a power supply interruption.
Likewise, individual settings may be lost.
Settings or activations must be carried out, depending on the equipment specification.
Example:
•
Vehicles with automatic engine start-stop system (MSA):
MSA function is active only after learning period (vehicle must not be woken for a period of 6 hours) > if
necessary, notify customer of the situation
•
E46 (AWD)/ E53/ E83: Carry out steering angle sensor adjustment
RA Instructions for disconnecting and connecting battery
BMW AG - TIS
24.01.2013 10:20
Issue status (12/2007) Valid only until next DVD is issued
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