20 TROUBLESHOOTING 245
Faults Possible cause Action
High oil consumption Engine oil too thin (viscosity) – Change the engine oil and filter, clean the oil
screen. ( p. 228)
Headlight and parking light do not
work
Fuse 2 blown – Change the fuses of individual power consumers.
( p. 210)
Brake light and horn do not work Fuse 3 blown – Change the fuses of individual power consumers.
( p. 210)
Battery discharged Ignition not switched off when vehicle
parked
– Recharge the battery. ( p. 205)
Battery is not charged by the alternator – Check charging voltage.
Combination instrument shows nothing
in display
Fuse 1 blown – Change the fuses of individual power consumers.
( p. 210)
Speedometer in combination instru-
ment doesn't work
The wiring harness of the wheel speed
sensor is damaged or the plug-in con-
nector is oxidized
– Check the wheel speed sensor.
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