20
ELECTRICAL SYSTEM
The BMW D7 is equipped with a 12 volt electrical system, consisting of a starter motor
operating on the flywheel ring gear and an internal alternator with static charging coils
inside the flywheel. The maximum charging capacity is 14 V 350 W at 2000 RPM.
A panel with rectifier, regulator and fuses completes the installation.
The alternator charging control light in the instrument panel will light up when the starter
switch key is turned to “II” position, but should go out when the engine runs, indicating
that everything is in order. If not, consult your BMW Marine Dealer as in case of any
starter motor malfunctioning.
Apart from replacing any burned fuses - make sure that the correct type of replacement
is used - the electrical system should need no maintenance. Check, however, that all
visible connections are clean and tightened.
Wiring Diagram
1 Charge Control Lamp 6 Water Temp Switch 11 Flywheel Generator BL = Blue RT = Red
2 Water Temp Lamp 7 Regulator 12 Fuse box 25A BR = Brown SW = Black
3 Spare (Oil) Lamp 8 Impulse Transmitter 13 Starter GE = Yellow WS = White
4 Keyswitch 9 Plug – 1 Pin 14 Battery GN = Green
5 Plug – 9 Pin 10 Plug – 4 Pin
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