Mercedes-Benz R-Class 2009 Owners Manual - Manual (Page 358)

Replacing bulbs
356
X Insert mechanical key 1 into opening.
X Press mechanical key 1 in direction of
arrow.
Battery compartment
2 is unlatched.
X Pull battery compartment 2 out of the
SmartKey housing.
3 Batteries
4 Contact springs
X Pull out batteries 3 .
X Insert new batteries 3 under contact
springs 4 with the positive terminal (+)
side facing up.
X Return battery compartment 2 into
SmartKey housing until it locks into place.
X Slide mechanical key 1 back into the
SmartKey.
X Check the operation of the SmartKey as
well as the KEYLESS-GO function.
Replacing bulbs
Safety notes
Safe vehicle operation depends on proper
exterior lighting and signaling to a large
degree.
Correct headlamp adjustment is extremely
important. Have headlamps checked and
readjusted at regular intervals and when a
bulb has been replaced. Contact an
authorized Mercedes-Benz Center for
headlamp adjustment.
G Warning!
Bulbs and bulb sockets can be very hot.
Allow the lamp to cool down before
changing a bulb.
Keep bulbs out of reach of children.
Halogen lamps contain pressurized gas. A
bulb can explode if you:
R touch or move it when hot
R drop the bulb
R scratch the bulb
Wear eye and hand protection.
Because of high voltage in Xenon lamps, it
is dangerous to replace the bulb or repair
the lamp and its components. We
Practical hints