BMW X5: Ignition Wires, Spark Plugs
FIRING ORDER
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Fig. 3: Firing Order (V8)
REPLACING ALL SPARK PLUGS (N62, N62TU)
Special tools required:
Necessary preliminary tasks:
- Switch off ignition
- Remove all IGNITION COILS.
Unscrew spark plugs with special tool 12 1 171.
Installation:
Tighten down spark plugs with special tool 12 1 171 and special tool 12 1 172
(torque limiter).
Without special tool 12 1 172, observe tightening torque.
Tightening torque 12 12 1AZ.
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Fig. 4: Tightening Down Spark Plugs With Special Tool 12 1 171 And 12 1 172
READ NEXT:
NOTES ON CHECKING IGNITION SYSTEM
Troubleshooting
Fault in fuel injection system
Spark plug faults
Ignition coil faults
Further fault patterns with evaluation
Additional fault notes for troubles
REPLACING CONTROL UNIT (VALVETRONIC)
Switch off ignition.
Follow instructions for disconnecting and connecting battery.
Disconnect battery.
CAUTION: Follow instructions for removing and installing e
REPLACING ALTERNATOR BELT PULLEY
Special tools required:
12 7 110
Remove and install alternator drive belt.
Depending on alternator type, grip shaft with:
hexagon socket
multi-tooth socket or
SEE MORE:
It is the outward-opening piezo-injector that renders possible spray-directed
direct injection and thus the overall
innovations of the N54 engine. Due to the fact that only this component ensures
that the injected fuel spray cone
remains stable, even under the prevailing influences of pressure and
IMPORTANT: After replacement, the "Repair" service function must be
carried out with in the
BMW diagnosis system.
WARNING: Danger to life!
Mount securing fixture for vehicle on lifting platform. See MOUNT SECURING
FIXTURE FOR VEHICLE ON LIFTING PLATFORM to
prevent the vehicle from slipping off or