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Fuses and bulbs
WARNING
Failure to replace bulbs correctly may cause
serious accidents.
●
Before carrying out any work in the engine
compartment please read and observe the
warnings ››› page 214. In any vehicle, the en-
gine comp
artment is a hazardous area and
could cause severe injury.
●
Discharge lamps work with high-voltage
and can cause serious or fatal injury if han-
dled incorrectly.
●
H7 and discharge lamps are highly pressur-
ised and could explode when being changed.
●
Only replace the bulbs concerned when
they have cooled.
●
Never replace bulbs alone if you are not fa-
miliar with the operations necessary. If you
are not sure about procedures then visit a
specialised workshop to carry out the neces-
sary work.
●
Never touch the bulb glass directly. Finger-
prints will be evaporated by the heat of the
operating bulb thus “fogging” up the reflec-
tor.
●
The headlamp frameworks in the engine
compartment and the tail lamps contain
sharp elements. Always protect your hands
when changing bulbs.
CAUTION
●
After changing a bulb, if the rubber covers
are not replaced correctly on the headlamp
framework, the electrical installation may be
damaged, especially if water is allowed to en-
ter.
●
Remove the ignition key before working on
the electric system. Otherwise, a short circuit
could occur.
●
Switch off the lights and the parking light
before changing a bulb.
●
Take good care to avoid damaging any com-
ponents.
Control lamp
It
lights
up
Possible cause Solution
A vehicle exterior
lighting bulb is not
working.
Replace the faulty
bulb.
Several warning and control lamps light up
for a few seconds when the ignition is switch-
ed on, signalling that the function is being
verified. They will switch off after a few sec-
onds.
Checking the bulbs of a trailer
For vehicles with the factory fitted towing
bracket, certain trailer lights are also control-
led if the power socket is correctly connected.
A fault on a trailer turn signal is indicated on
the instrument panel by the turn signal blink-
ing twice as fast ( or ) ››› page 74.
●
General fault of all turn signals on one side.
●
Fault in one tail light (on some models, al-
so the registration light).
●
Fault in two brake lights.
WARNING
Observe the safety warnings ››› in Control
and warning lamps on page 47.
Note
A fault in the LED on the tail lights will not be
indicated. However, if the fault affects all the
LEDs then this will be indicated by the control
lamp .
267
Technical specifications
AdviceOperationSafety
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