IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DAMAGE (ESD PROTECTION) .
Necessary preliminary work:
Unlock rear plug (1) from the control unit and disconnect.
Release rear wiring harness from intake plenum.
Release nuts (1) and remove earth cable.
Unlock all connectors from ignition coils and injectors and detach.
Unclip wiring harness (2), feed out and remove.
NOTE: Check stored fault messages.
Delete fault memory.
BMW X3 Owners Manual > Driving: Starting the engine
Hints
Enclosed areas
Do not let the engine run in enclosed
areas, since breathing in exhaust fumes may
lead to loss of consciousness and death. The
exhaust gases contain carbon monoxide, an
odorless and colorless but highly toxic gas.
Unattended vehicle
Do not leave the vehicle unattended wi ...