Page 181 of 228
Overview bulbs
Front lamps
Headlamp Type
:
Low‑beam headlamp
H7 (55 W)
; High‑beam headlamp
H7 (55 W)
= Parking and side marker lamp
WY 5 W
? Turn signal lamp
2357 A Front fog lamp* Type
:
Front fog lamp
H 11 Side turn signal lamp Type
:
Side turn signal lamp
WY 5 W Replacing bulbs
179>> Practical hints.
* optional Z
Page 182 of 228
Rear lamps
Tail lamp unit Type
:
Brake lamp/tail lamp/turn signal
lamp/side marker lamp
12 V 21/5 W
; Reflector
-
= Backup lamp
12 V 21 W License plate lamps Type
:
License plate lamps
C 5 W High‑mounted brake lamp Type
:
High‑mounted brake lamp
W 16 W180
Replacing bulbs>> Practical hints.
Page 183 of 228

Replacing bulbs for front lamps
Before you start to replace a bulb for a
front lamp, do the following first:
X Turn the exterior lamp switch to position
$ (Y page 64).
X Switch off the ignition.
X Open the service flap (Y page 120). Left headlamp, (right headlamp in reverse)
Parking and side marker lamp bulb
X
Removing:
Driver’s
side: Turn bulb socket ? toward
the outside.
Passenger side: Turn bulb socket ?
toward the outside.
X Pull bulb socket ? out of the headlamp
housing.
X Pull the bulb out of bulb socket ?.
X Installing:
Insert the new bulb into bulb
socket ?.
X Insert bulb socket ? into the headlamp
housing.
X Driver side: Turn bulb socket ? toward
the inside.
Passenger side: Turn bulb socket ?
toward the inside.
Low‑beam headlamp bulb X
Removing: Take off low‑beam headlamp
cover =.
X Detach the electrical connector. X
Bend the retainer spring end down and
forward until it unclips. Fold the
retainer spring back.
X Pull the bulb out of the headlamp
housing.
X Installing: Insert the new bulb into the
headlamp housing.
X Fold the retainer spring forward.
X Bend the retainer spring end forward
then up and back to clip in.
X Attach the electrical connector.
X Reinstall low‑beam headlamp cover =.
High‑beam headlamp bulb X
Removing: Take off high‑beam headlamp
cover ;.
X Detach the electrical connector.
X Tilt the bulb socket down and pull it out.
X Pull the bulb out of the bulb socket.
X Installing: Insert the new bulb into the
bulb socket.
X Fit the bulb so that the retaining lug of
the base plate is pointing up.
X Press the bulb into the bulb socket until
it is fully engaged.
X Attach the electrical connector.
X Reinstall high‑beam headlamp cover ;.
Front turn signal lamp bulb X
Removing: Turn bulb socket :
counterclockwise
by a quarter of turn and
pull it out of the headlamp housing.
X Press gently onto the bulb and turn it
counterclockwise.
X Pull the bulb out of bulb socket :.
X Installing:
Insert the new bulb into bulb
socket :.
X Press gently onto the bulb and turn it
clockwise.
X Insert bulb socket : into the headlamp
housing. Replacing bulbs
181
>> Practical hints. Z
Page 184 of 228

The arrow on bulb socket : must be in
line with the line on the headlamp
housing.
X Turn bulb socket : clockwise by a
quarter of turn.
Side turn signal lamp bulb X
Removing: Open the door on the
corresponding side. X
Press on retaining lug : in the
direction of the arrow until the side turn
signal lamp housing disengages.
X Close the door.
X Use a suitable tool to loosen the side turn
signal lamp housing from the fender.
X Turn the bulb socket counterclockwise
and pull it out of the side turn signal
lamp housing.
X Pull the bulb out of the bulb socket.
X Installing: Insert the new bulb into the
bulb socket.
X Insert the bulb socket into the side turn
signal lamp housing and turn the bulb
socket clockwise.
X Fit the side turn signal lamp housing
onto the fender.
X Press gently onto the side turn signal
lamp housing.
The side turn signal lamp housing must
audibly engage. Replacing bulbs for rear lamps
Before
you start to replace a bulb for a rear
lamp, do the following first:
X Turn exterior lamp switch to position
$ (Y page 64).
X Switch off the ignition.
Tail lamp unit X
Removing:
Coupé: Open the upper tailgate.
X Open the lower tailgate.
X Cabriolet: Open the rear soft top
(Y page 74).
X Remove the side cover in the cargo
compartment on the corresponding side.
X Fold the damping material forward, if
necessary. Left bulb carrier illustrated as example
:
Retaining tab
; Electrical connector
X Press retaining tab : in the center of
the bulb carrier upwards.
X Pull the bulb carrier out of the tail lamp
housing.182
Replacing bulbs
>> Practical hints.
Page 185 of 228

Left bulb carrier with bulb sockets (right bulb
carrier in reverse)
:
Retaining tab
= Brake, tail, turn signal and side marker
lamp bulb
? Backup lamp bulb
X Depending on which bulb needs to be
replaced, press gently onto bulb =
or ? and turn it counterclockwise.
X Pull the bulb out of the bulb socket.
X Installing: Insert the new bulb into the
bulb socket.
X Press gently onto the bulb and turn it
clockwise until it engages.
X Insert the bulb carrier into the tail lamp
housing.
X Press gently onto the bulb carrier.
Let retaining tab : engage.
X Fold the damping material backward, if
necessary.
X Reinstall the side cover in the cargo
compartment. High-mounted brake lamp X
Removing: Unscrew retaining screws :.
X Remove high-mounted brake lamp ?.
X Detach electrical connector ;
from bulb
socket =.
X Turn the bulb counterclockwise and pull
it out of its socket.
X Installing: Install in the reverse order.
License plate lamps G
WARNING
High outside temperature, stop-and-go
traffic, driving on long uphill grades, or
driving
at high engine speed may increase
the temperature in the engine
compartment. Therefore the area around the
air slots in the rear apron may be hot. Let
the engine cool off before touching this
area to prevent burns. Replacing bulbs
183
>> Practical hints. Z
Page 211 of 228

No. Accessory/Component Amperage Color
F
Engine 15 A Blue
G
ESP
®
control unit 25 A Neutral
H
Cockpit switch module, on-board
diagnostics
socket, turn signal lamp switch,
transmission control unit, exterior lamp
switch, anti-theft warning system, rain-
light sensor, auxiliary instruments, central
locking system, instrument cluster, exterior
rear view mirror heating, Tire Pressure
Monitoring System (TPMS) 10 A Red
I
— — —
J
Air conditioning compressor 15 A Blue
K
Audio, subwoofer, sound system, soft top
(cabriolet only) 15 A Blue
L
Fuel pump with fuel level sensor 15 A Blue
M
Rear window wiper (coupé only) 15 A Blue
N
ESP
®
control unit, EPS control unit, restraint
system, instrument cluster 10 A Red
O
Engine control unit, on-board diagnostics
socket, transmission control unit, Tire
Pressure Monitoring System (TPMS) 7.5 A Brown
P
Air conditioning system, exterior rear view
mirror
adjustment, washer pump, audio, seat
heating, wiper switch, backup lamps, soft top
switch (cabriolet only) 10 A Red
Q
Auxiliary power outlet 15 A Blue
R
Left low‑beam headlamp 7.5 A Brown
S
Right low‑beam headlamp 7.5 A Brown
T
Brake lamps 15 A Blue
U
Right high‑beam headlamp 7.5 A Brown
V
Left high‑beam headlamp 7.5 A Brown
W
Engine 7.5 A Brown
X
Rear window defroster, radiator fan 40 A Orange
Y
Soft top (cabriolet only) 30 A Green Fuses
209
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