BMW X5: Troubleshooting
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General Information
Working on ignition system
Removing and installing electronic control units
Welding work (overload protection of control units)
Disconnecting and connecting battery
Disconnec
IMPORTANT:
Disconnecting the vehicle battery will cancel the fault memories
of control
units. Consequently, before disconnecting the car's battery, always
interrogate the fault memories. Invest
FIRING ORDER
Fig. 3: Firing Order (V8)
REPLACING ALL SPARK PLUGS (N62, N62TU)
Special tools required:
12 1 171
12 1 172
Necessary preliminary tasks:
Switch off ignition
Remove all IGNITION CO
SEE MORE:
(cylinder bank 5 to 8)
Necessary preliminary tasks:
Remove servomotor for left eccentric shaft.
Remove ignition coils on cylinder bank 5 to 8.
Remove spark plugs on cylinder bank 5 to 8.
Remove left cylinder head cover.
Remove left inlet and exhaust adjustment units.
Remove left inlet cams
IMPORTANT: Danger of scalding!
Only perform this work after engine has cooled down.
Necessary preliminary tasks:
Follow instructions for working on cooling system.
Draining coolant.
Remove fan cowl.
Unlock and detach coolant hose (1).
Release nuts and remove thermostat cartridge (2).
Install