Observe safety instructions for handling vehicle battery.
Before disconnecting battery:
Turn off the ignition and other electrical loads/consumers to prevent
sparking when reconnecting.
NOTE: If the
Do not start the engine with help of starting sprays.
Preparation:
Conform with the following when starting engine with starting cable.
Ensure that jump lead wires are to appropriate cross-section s
IMPORTANT: Only repair those cables which show visible signs of damage.
In the event of
visible damage, make sure there is only one cable repair in effect after the
repair work. If no visible damage
CONTENTS OF ENGINE ELECTRICAL SYSTEM GENERAL
General Information -> Working on ignition system.
-> Removing and installing electronic control units.
-> Welding work (overload protection of control units).
-> Disconnecting and connecting battery.
-> External jump-starting aid.
INSTRUCT
The ignition system on modern BMW engines consist of one ignition coil per
cylinder. This arrangement is
known as RZV, or Direct Stationary Ignition. The ignition coil receives fused
power usually from the DME
main relay or IVM (N62).
The ignition coil primary circuit is controlled (triggered) by