Page 253 of 314
Replacing transmitter battery
252
>> Practical hints.
NotesThe remote control's transmitter battery is
almost spent when the turn signals flash
rapidly nine times in a row when locking the
vehicle.i
If you do not replace the transmitter
battery, after about 100 more times you will no
longer be able to lock or unlock the vehicle
using the remote control.>Replace the transmitter battery.
or
>Have the transmitter battery replaced at an
smart center.
Batteries contain materials that can harm the
environment if disposed of improperly.
Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries for
recycling.
G
Warning!
Batteries contain poisonous and corro
sive substances. Therefore keep the
batteries out of reach of children.
If a battery is swallowed, seek medical
help immediately.
Page 256 of 314
Replacing bulbs
>> Practical hints.
255 Overview bulbs
Front lamps Rear lamps
P82.10483731
Lamp
Type
1
Turn signal lamp
PY 21 W
2
Low beam headlamp
H7 (55W)
3
Parking and side
marker lamp
WY 5 W
4
Front fog lamp*
H11
5
High beam headlamp
H7 (55W)
6
Side turn signal lamp
WY 5 W
Lamp
Type
7
Highmounted brake
lamp
W16W
8
Brake, tail, turn
signal, and
sidemarker lamp
12 V 21/5 W
9
Reflector
a
Backup lamp
12 V 21 W
b
License plate lamp
C5W
Page 257 of 314

Replacing bulbs
256
>> Practical hints. Notes on bulb replacement
• Only use bulbs of the same type and with the
specified watt rating.
• Switch the lights off before replacing a bulb
to prevent short circuits.
• Always use a clean lintfree cloth when
handling bulbs.
• Your hands should be dry and free of oil and
grease.
• Avoid touching the glass of the bulb with
bare fingers.
• If the newly installed bulb does not come on,
contact an authorized smart center.
• Have the bulbs for the front fog lamps*
replaced at an authorized smart center.
Replacing bulbs for front lampsBefore you start to replace a bulb for a front
lamp, do the following first:
>Turn the exterior lamp switch to
positionM (
page 101).
>Switch off the ignition.
>Open the service flap (
page 176)
Left headlamp, (right headlamp in reverse)
1
Bulb socket for parking, and side marker
lamp
2
Bulb socket for turn signal lamp
3
Low beam headlamp cover
4
High beam headlamp coverParking and sidemarker lamp bulb
>Removing:
Driver side: Turn bulb socket
1 toward the
outside.
Passenger side: Turn bulb socket1 toward
the outside.
>Pull bulb socket
1 out of the headlamp
housing.
>Pull the bulb out of bulb socket
1.
> Installing: Insert the new bulb into bulb
socket
1.
>Insert bulb socket
1 into the headlamp
housing.
>Driver side: Turn bulb socket
1 toward the
inside.
Passenger side: Turn bulb socket1 toward
the inside. P82.10483631
Page 258 of 314

Replacing bulbs
>> Practical hints.
257
Low beam headlamp bulb
>Removing: Take off low beam headlamp
cover
3.
>Detach the electrical connector.
>Bend the retainer spring end down and
forward until it unclips. Fold the retainer
spring back.
>Pull the bulb out of the headlamp housing.
>Installing: Insert the new bulb into the
headlamp housing.
>Fold the retainer spring forward.
Bend the retainer spring end forward then
up and back to clip in.
>Attach the electrical connector.
>Reinstall low beam headlamp cover
3.High beam headlamp bulb
>Removing: Take off high beam headlamp
cover
4.
>Detach the electrical connector.
>Tilt the bulb socket down and pull it out.
>Pull the bulb out of the bulb socket.
>Installing: Insert the new bulb into the bulb
socket.
>Fit the bulb so that the retaining lug of the
base plate is pointing up.
>Press the bulb into the bulb socket until it
is fully engaged.
>Attach the electrical connector.
>Reinstall high beam headlamp cover
4.Front turn signal lamp bulb
>Removing: Turn bulb socket
2 counter
clockwise by a quarter of turn and pull it out
of the headlamp housing.
>Press gently onto the bulb and turn it
counterclockwise.
>Pull the bulb out of bulb socket2.
>Installing: Insert the new bulb into bulb
socket
2.
>Press gently onto the bulb and turn it
clockwise.
>Insert bulb socket
2 into the headlamp
housing.
The arrow on bulb socket
2 mu st be in l in e
with the line on the headlamp housing.
>Turn bulb socket
2 clockwise by a quarter
of turn.
Page 259 of 314

Replacing bulbs
258
>> Practical hints. Side turn signal lamp bulb
>Removing: Open the door on the corre
sponding side.
1
Retaining lug
>Press on retaining lug
1 in the direction of
the arrow until the side turn signal lamp
housing disengages.
>Use a suitable tool to loosen the side turn
signal lamp housing from the fender.
>Turn the bulb socket counterclockwise and
pull it out out of the side turn signal lamp
housing.
>Pull the bulb out of the bulb socket.>Installing: Insert the new bulb into the bulb
socket.
>Insert the bulb socket into the side turn
signal lamp housing and turn the bulb
socket clockwise.
>Fit the side turn signal lamp housing onto
the fender.
>Press gently onto the side turn signal lamp
housing.
The side turn signal lamp housing must
audibly engage.
Replacing bulbs for rear lampsBefore you start to replace a bulb for a rear
lamp, do the following first:
>Turn exterior lamp switch to positionM
(
page 101).
>Switch off the ignition.
Tail lamp unit
>Removing:
Coupé:
>Open the upper tailgate.
>Open the lower tailgate.
Cabrio:
>Open the lower tailgate
>Open the rear soft top (
page 89)
>Remove the side cover in the cargo
compartment on the corresponding side.
>Fold the damping material forward, if
necessary.
P82.10455631
Page 260 of 314
Replacing bulbs
>> Practical hints.
259
Left bulb carrier illustrated as example1
Retaining tab
2
Electrical connector
>Press retaining tab
1 in the center of the
bulb carrier upwards.
>Pull the bulb carrier out of the tail lamp
housing.Left bulb carrier with bulb sockets (right bulb
carrier in reverse)
1
Retaining tab
3
Brake, tail, turn signal, and sidemarker
lamp bulb
4
Backup lamp bulb
>Depending on which bulb needs to be
replaced, press gently onto bulb
3
or
4
and turn it counterclockwise.
>Pull the bulb out of the bulb socket.>Installing: Insert the new bulb into the bulb
socket.
>Press gently onto the bulb and turn it
clockwise until it engages.
>Insert the bulb carrier into the tail lamp
housing.
>Press gently onto the bulb carrier.
Let retaining tab
1 engage.
>Fold the damping material backward, if
necessary.
>Reinstall the side cover in the cargo com
partment.
P82.10452731
Page 285 of 314
Fuses
284
>> Practical hints.
Fuse chartNo.
Accessory/Componant
Amperage
Color
1
Engine
25 A
Neutral
2
Windshield wipers
25 A
Neutral
3
Power window, left and right
20 A
Yellow
4
Blower
25 A
Neutral
5
Front fog lamps
10 A
Red
6
Right parking and lamp, instrument lighting, terminal 58R
7.5 A
Brown
7
Parking and lamp, left
7.5 A
Brown
8
Engine
25 A
Neutral
9
Engine
7.5 A
Brown
10
Engine
15 A
Blue
11
ESP
®
25 A
Neutral
12
Switches strip, onboard diagnosis socket, turn signal lamp, transmission
control unit
10 A
Red
13
14
Charge air cooler, air conditioning compressor
15 A
Blue
15
Audio, subwoofer, interior lighting
15 A
Blue
16
Fuel pump
15 A
Blue
17
Rear window wiper (coupé only)
15 A
Blue
18
ESP
®, power steering, air bag, instrument panel
10 A
Red
19
Motor control unit, onboard diagnosis socket, transmission control unit
7.5 A
Brown
20
Air conditioning system, exterior mirror adjustment, washer pump, audio,
seat heating, gear selector lever control unit
10 A
Red
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