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22 TROUBLESHOOTING
232
Faults
Possible cause
Action
High oil consumption
Engine oil too thin (low viscos-
ity)
–
Change the engine oil and oil filter and
clean the oil screens.
Headlight and position light are
not functioning
Fuse
6
blown
–
Change the fuses of individual power
consumers. (
Turn signal, brake light, and
horn are not functional
Fuse
6
blown
–
Change the fuses of individual power
consumers. (
Time is not (correctly) dis-
played
Fuse
7
is blown
–
Change the fuses of individual power
consumers. (
–
Set the clock. (
Battery discharged
Ignition was not switched off
when vehicle was parked
–
Recharge the battery.
Battery is not being charged by
alternator
–
Check the charging voltage.
–
Check the open-circuit current.
The combination instrument
shows nothing on the display
Fuse
7
is blown
–
Change the fuses of individual power
consumers. (
–
Set the clock. (
Speedometer in combination
instrument not functioning
Speedometer wiring harness is
damaged or plug-in connector
is oxidized
–
Check the wiring harness and plug-in
connector.