IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DISCHARGE (ESD PROTECTION) .
Necessary preliminary tasks:
Overview of engine wiring harness sensor system module 2.
Release screws (1).
Release cable channel (2).
Installation note: Reconnect the earth connection.
Release wiring harness if necessary from existing clips and clamps.
Feed out wiring harness and remove.
Installation note:
Check wiring harness installation arrangement.
Check plug connections for correct fit.
Check stored fault message.
Clear diagnostic fault entries from fault memory.
BMW X3 Service & Repair Manual > Troubleshooting: Notes for disconnecting and connecting battery
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 so ...