4 B
Bag hoo k. . . . . . . . . . . . . . . . . . . . . . .185
Ball couplin g
Folding in . . . . . . . . . . . . . . . . . . . .223
Folding out . . . . . . . . . . . . . . . . . . .220
BAS . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
Battery Changing (key) . . . . . . . . . . . . . . . .304
Changing (KEYLESS GO key) . . . . .304
Charging . . . . . . . . . . . . . . . . . . . . .327
Checking (key ).. . . . . . . . . . . . . . .304
Checking (KEYLESS GO key) . . . . .304
Check lamp (key ).. . . . . . . . . . . . .304
Check lamp (KEYLESS GO key) . . . . . . . . . . . . . . . . . . . . . . . . .79, 304
Disconnecting . . . . . . . . . . . . . . . .326
Display message . . . . . . . . . .249, 268
Maintenance (vehicle ).. . . . . . . ..324
Reconnecting . . . . . . . . . . . . . . . . .328
Removing/fitting . . . . . . . . . . . . . .327
Vehicle battery . . . . . . . . . . . . . . . .324
Belt force limiters
Activatio n.. . . . . . . . . . . . . . . . . . . .47
Belt height adjustment . . . . . . . . . ..100
Belt tensioners Activatio n.. . . . . . . . . . . . . . . . . . . .47
Belt warnin g. . . . . . . . . . . . . . . . . . . .100 Bonnet
Bonnet catch . . . . . . . . . . . . . . . . .207
Display message . . . . . . . . . . . . . .247
Opening/closing . . . . . . . . . . . . . .206
Bonnet release lever
Release lever . . . . . . . . . . . . . . . . .207
Boot
Emergency release . . . . . . . . . . . . .301
Locking separatel y.. . . . . . . . . . . . .82
Opening/closing . . . . . . . . . . . . . . .80
Boot li d
Display message . . . . . . . . . . . . . .247
Brake
Warning lamp . . . . . . . . . . . . . . . . .280
Brake Assist
see BAS
Brake fluid . . . . . . . . . . . . . . . . . . . . .370
Display message (luxury multi-
function steering wheel) . . . . . . . .250
Display message (multi-function
steering wheel) . . . . . . . . . . . . . . .242
Brake lamps
Adaptive . . . . . . . . . . . . . . . . . . . . . .68
Display message . . . . . . . . . . . . . .258
Brake syste m
Display message . . . . . . . . . . . . . .250
Parking brake . . . . . . . . . . . . . . . . .116
Bulb
Brake lamp . . . . . . . . . . . . . . .310, 311
Dipped-beam headlamps . . . . . . . .308 Main-beam headlamps . . . . . . . . .
.309
Parking lamp . . . . . . . . . . . . . . . . .309
Rear foglamp . . . . . . . . . . . . .310, 311
Replacing . . . . . . . . . . . . . . . .307, 310
Reversing lamp . . . . . . . . . . .310, 311
Side lamp . . . . . . . . . . . . . . . . . . . .309
Side marker lamp . . . . . . . . . . . . . . . . . . . . . . .310, 311
Tail lamp . . . . . . . . . . . . . . . .310, 311
Turn signal lamp . . . . . .309, 310, 311
see Lamp
Bulbs
Overview . . . . . . . . . . . . . . . . . . . .306 C
Car e. . . . . . . . . . . . . . . . . . . . . . . . . . .227
Automatic car wash . . . . . . . . . . . .227
Headlamps . . . . . . . . . . . . . . . . . . .228
High-pressure cleaners . . . . . . . . .228
Parktroni c.. . . . . . . . . . . . . . . . . .230
Plastic trim . . . . . . . . . . . . . . . . . . .229
Rear window . . . . . . . . . . . . . . . . .228
Side windows . . . . . . . . . . . . . . . . .228
Trailer tow hitch . . . . . . . . . . . . . . .230
CD player/CD changer
Operation (on-board computer,
luxury multi-function steering
wheel) . . . . . . . . . . . . . . . . . . . . . .137 Index
204_AKB; 2; 3, en-GB
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4
Display
messages 25
6 Display messages Possible cause/consequence Possible solution
. 4-button multi-function
steering wheel:
Rear left turn sig-
nal
or
Rear right turn
signal
12-button luxury multi-
function steering
wheel:
Rear left turn sig-
nal
or
Rear right turn
signal The rear left-hand or rear right-hand turn
signal is faulty. In vehicles with LEDs, this
display message will only appear if all the
LEDs fail. X
Vehicles without LEDs: replace the bulb as
soon as possible (Y page 305).
Vehicles with LEDs: visit a qualified specialist
workshop as soon as possible. Practical advice
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Display
messages 25
8 Display messages Possible cause/consequence Possible solution
. 4-button multi-function
steering wheel:
Front left turn
signal
or
Front right turn
signal
12-button luxury multi-
function steering
wheel:
Front left turn
signal
or
Front right turn
signal The front left-hand or right-hand turn sig-
nal is faulty. X
Replace the bulb as soon as possibl e
( Y page 305). . 4-button multi-function
steering wheel:
Third brake lamp
12-button luxury multi-
function steering
wheel:
Third brake lamp The third brake lamp is faulty. This displa
y
message will only appear if all LEDs have
failed. X
Visit a qualified specialist workshop as soon as
possible. Practical advice
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Changing the bulbs
306 Overview
Saloon Estat
e Front bulbs Bulb Type
1 Additional tur
n
signal lamp LED
2 Side lamp/park-
ing lamp 2 x W 5 W–BV
3 Turn signal lamp
(front
) PY 21
W 4 Dipped-bea
m
headlamp H7 55
W
or
D1S 35 W* 17 5 Main-beam
headlamp H7 55
W 6 Front foglamp H11 55
W 17
Vehicles with bi-xenon headlamps*: always have these bulbs changed at a qualified specialist workshop, e.g. a Mercedes-Benz Service Centre. Practical advice
* optional
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Changing the bulbs
307
Rear bulbs Bulb Type
7 Third brake lamp LED
8 Side marker
lamp
Rear foglamp W 5
W
P 21 W 9 Turn signal
(rear) PY 21
W
or
LED* 18 a Brake lamp/tail
lamp 2 x P 21
W b Reversing lamp P 21
W
or
W 16 W19
(Estate) c Licence plate
lighting W 5
W Before changing bulbs
R
Use only the bulb types specified here.
R To prevent a short-circuit, switch off the
lights before changing a bulb.
R Only hold bulbs with a clean, lint-free cloth.
R Do not work with wet or greasy fingers.
R If the new bulb still does not light up, con-
sult a qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre.
R Have the following bulbs changed at a
qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre:
- the additional turn signal lamps in the
exterior mirrors
- the turn signal lamp* (vehicles with ligh t
package*)
- the third brake lamp
- the front foglamps
- the bi-xenon bulb s
- the licence plate lighting
i Due to the location of the front head -
lamps, it is best to have the bulbs changed at a qualified specialist workshop, e.g.
a
Mercedes-Benz Service Centre.
i Have the headlamp setting checked reg-
ularly at a qualified specialist workshop ,
e.g. a Mercedes-Benz Service Centre. Changing the front bulbs
Halogen headlamps (left-hand side, right mirror
image)
1 Bulb holder for turn signal
2 Housing cover for parking lamp
3 Housing cover for parking lamp
4 Housing cover for main-beam headlamp
5 Housing cover for dipped-beam headlamp
18 Vehicles with light package*: always have the LEDs changed at a qualified specialist workshop, e.g. a Mercedes-Benz Service Centre.
19 Only vehicles without LED turn signal lamps are equipped with these bulb type s Practical advice
* optional
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Changing the bulbs
308Bi-xenon headlamp* (left-hand side, right mirror
image)
1
Bulb holder for turn signal
2 Housing cover for parking lamp
3 Housing cover for parking lamp
4 Housing cover for main-beam headlamp
5 Housing cover for dipped-beam headlamp
(bi-xenon headlamps) Halogen headlamps (left-hand side, right mirro
r
image)
6 Bulb holder for parking lamp
7 Bulb holder for parking lamp
8 Bulb holder for main-beam headlamp
9 Bulb holder for dipped-beam headlamp Bi-xenon headlamp* (left-hand side, right mirror
image)
6 Bulb holder for parking lamp
7 Bulb holder for parking lamp
8 Bulb holder for main-beam headlamp
Replacing dipped-beam headlamps
(vehicles with halogen headlamps) X
Switch off the lights .
X Open the bonnet.
X Turn housing cover 5anti-clockwise and
remove it.
X Disconnect the connector from the bulb .
X Gently push in retaining spring of lamp
holder 9and detach it downwards .Practical advice
* optional
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Changing the bulbs
309
X
Remove the bulb from the bulb holder,
holding the base (not the glass tube).
X Insert the new bulb so that the base fits flat
into the recess in the bulb holder.
X Clip in the retaining spring of bulb
holder 9.
X Attach the connector to the bulb .
X Put on the housing cover and turn it clock -
wise until it clips into place.
Replacing the bulbs in the main-beam
headlamp s 8
Bulb holder for main-beam headlamp
X Switch off the lights .
X Open the bonnet. X
Turn housing cover 4anti-clockwise and
remove it.
X Push down the lamp on the connector until
it is released.
X Remove the bulb from bulb holder 8, hold-
ing the base (not the glass tube).
X Disconnect the connector from the bulb .
X Attach the connector to the new bulb .
X Put the bulb in at the bottom and push it up
until it clips into place, so that the base fits
flush in the recess on the bulb holder.
X Put on the housing cover and turn it clock -
wise until it clips into place .
Changing the bulbs in the side lamps
and parking lamps X
Switch off the lights .
X Open the bonnet.
X Turn housing cover 2or3 anti-clockwis e
and remove it.
X Pull out bulb holder 6or7 with the bulb.
X Pull the bulb out of the bulb holder.
X Push the new bulb into the bulb holder. X
Insert the bulb holder into the headlamp
and push it in.
X Put on the housing cover and turn it clock -
wise until it clips into place.
Replacing the turn signal lamps X
Switch off the lights .
X Open the bonnet.
X Turn bulb holder 1anti-clockwise and
remove it along with the bulb.
X Turn the bulb anti-clockwise, applying
slight pressure, and remove it from the bulb
holder.
X Insert the new bulb into the bulb holder and
turn it clockwise. Practical advice
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Changing the bulbs
310Bulb holder for turn signal
1
Mark
2 Retainer
X Place bulb holder in the headlamp so that
retainer 2is upright and mark 1is at the
top .
X Turn bulb holder clockwise until it engages. Changing the rear bulbs
Tail lamps Saloon
X
Switch off the lights .
X Open the boot. Saloon
1
Retaining clips
X Remove the side panel.
or
X Open the left-hand* or right-hand stowage
compartment in the boot. X
Press retaining clips 1together and pull
the bulb holder with the bulb out a short
distance.
X Vehicles with LED turn signals: discon-
nect the cables of the LED turn signal from
the connectors of the bulb holder.
X Remove the bulb holder with the bulb. Saloon: bulb holder without LED turn signal (right
-
hand side, left mirror image)
1 Rear foglamp/side marker lamp
2 Side marker lamp
3 Turn signal lamp
4 Parking lamp/brake lamp/tail lamp
5 Brake lamp/tail lamp
6 Reversing lamp Practical advice
* optional
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