Observe SAFETY INFORMATIONS 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 cables: If the battery positive and negative leads are the same color and you are in doubt, follow the polarity to the battery, then mark and cover the leads.
- The on-board computer and clock may lose your data.
General notes on disconnecting battery:
Only lead AGM battery:
After connecting battery:
IMPORTANT: The scope of application of some systems may be restricted after an open circuit.
Personal Profiles may also be lost.
Settings or activations must be carried out, depending on the equipment specification.
For example:
Refer to the diagnosis system for further vehicle-specific information.
BMW X3 Service & Repair Manual > Luggage compartment floor: Stripping operations - replacing luggage compartment floor, middle (tail
panel removed)
NOTE:
Owing to the different engine variants and equipment specifications, not all the
components are taken into consideration.
The following list basically represents the removal sequence.
Remove positive battery cable (61 12 002 )
Remove exhaust system.
Remove exhaust syst ...