8
Fuel filter
Display message . . . . . . . . . . . . . .270
Fuel line
Malfunction . . . . . . . . . . . . . . . . . .295
Fuel tank
Malfunction . . . . . . . . . . . . . . . . . .295
Fuse allocation chart . . . . . . . . . . ..344
Fuse box Dashboard . . . . . . . . . . . . . . . . . . .344
Engine compartment . . . . . . . . . . .344
Luggage compartment . . . . . . . . . .345
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . .343 G
Garage door Opening/closing (with the remote
control) . . . . . . . . . . . . . . . . . . . . .210
Garage door opener . . . . . . . . . . . . ..209
Clearing the memory . . . . . . . . . . .210
Frequencies . . . . . . . . . . . . . . . . . .373
Programming the remote control . .209
Gear indicator (on-board computer) 121
Genuine Mercedes-Benz parts . . . ..348
Glove compartment . . . . . . . . . . . . ..201
Gradient-climbing capability (max-
imum) . . . . . . . . . . . . . . . . . . . . . . . . .238
Gross vehicle weight, maximum
permissible . . . . . . . . . . . . . . . . . . . . .363 H
Headlamps Cleaning . . . . . . . . . . . . . . . . . . . . .249
Cleaning system . . . . . . . . . . . . . . . .96
Misting up . . . . . . . . . . . . . . . . . . .301
Headlamps delayed switch-off
see Exterior lighting delayed switch-off
Head restraint
Adjusting (front) . . . . . . . . . . . . .77, 78
Adjusting (rear) . . . . . . . . . . . . . . . .80
NECK-PRO . . . . . . . . . . . . . . . . . . . .47
Removing (rear) . . . . . . . . . . . . . . . .80
Resetting triggered NECK-PRO
head restraints . . . . . . . . . . . . . . . .310
Heating
see Air conditioning
High-pressure cleaners . . . . . . . . . ..248
Hill start assist . . . . . . . . . . . . . . . . .105
HomeLink ®
see Garage door opener I
Immobiliser . . . . . . . . . . . . . . . . . . . . .62
Indicator and warning lamp Brakes (red ).. . . . . . . . . . . . .289, 290
Engine diagnostic . . . . . . . . . . . . . .291
ESP ®
. . . . . . . . . . . . . . . . . . . .58, 289
PASSENGER AIRBAG OFF . . . .50, 286
Reserve fuel . . . . . . . . . . . . . . . . . .293 Seat belt . . . . . . . . . . . . . . . . . . . .
.291
SRS . . . . . . . . . . . . . . . . . . . . .41, 290
Tyre pressure monitor . . . . . . . . . .291
Indicator and warning lamps . . . . ..288
Indicator lamp see Indicator and warning lamp
Instrument cluster . . . . . . . . . . . . ..113
Overview . . . . . . . . . . . . . . . . . . . . .26
Selecting the language (on-board
computer) . . . . . . . . . . . . . . . . . . .129
Instrument lighting . . . . . . . . . . . . ..114
Interior lighting . . . . . . . . . . . . . . . . . .97
Automatic control system . . . . . . . .97
Delayed switch-off (on-board
computer) . . . . . . . . . . . . . . . . . . .131
Emergency lighting . . . . . . . . . . . . . .97
Manual control . . . . . . . . . . . . . . . . .97
Reading lamp . . . . . . . . . . . . . . . . . .97
Interior motion sensor . . . . . . . . . . ..64
Switching on/off (on-board com-
puter) . . . . . . . . . . . . . . . . . . . . . . .135
ISOFIX child seat securing system ..53 J
Jack . . . . . . . . . . . . . . . . . . . . . . . . . . .255
Operation . . . . . . . . . . . . . . . . . . . .327
Jump-starting . . . . . . . . . . . . . . . . . . .339
Jump leads . . . . . . . . . . . . . . . . . . .339 Index
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Troubleshooting
298 Problem Possible cause/consequence Suggested solutions
Vehicles with a petrol engine:
The engine is not running
smoothly and is misfiring. There is a malfunction in the
engine electronics or a mechani-
cal component of the engine con-
trol unit. X
Only depress the accelerator pedal slightly.
X Have the cause rectified immediately at a qualified specialist work-
shop.
Otherwise, non-combusted fuel may get into the catalytic converter
and damage it. A coolant temperature of over
120 °C is displayed. You also
hear a warning signal. The coolant level is too low. The
coolant is too hot and the engine
is no longer being cooled suffi-
ciently. X
Stop as soon as possible and allow the engine and the coolant to
cool down.
X Check the coolant level (Y page 223). Observe the warning notes
as you do so and top up the coolant if necessary. If the coolant level is correct, the
radiator fan may be faulty. The
coolant is too hot and the engine
is no longer being cooled suffi-
ciently. X
If the coolant temperature is less than 120 °C, you can continue
driving to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving on
mountain roads and stop/start driving. The engine does not switch off. The ignition lock is faulty. X
Open the fuse box in the engine compartment ( Ypage 344).
X Remove fuse 120 using the fuse extractor.
The engine stops.
If you wish to start the engine again:
X Replace the fuse. Practical advice
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Changing the bulbs
315
Observe the following points:
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.
i Have the headlamp setting checked reg-
ularly at a qualified specialist workshop,
e.g. a Mercedes-Benz Service Centre. Changing the front bulbs
i ML 500: the fuse box in the engine com-
partment must be removed before a bulb is
changed in the headlamp on the right-hand
side. Have the work carried out at a quali-
fied specialist workshop, e.g. a Mercedes-
Benz Service Centre. Replacing dipped-beam headlamps
(vehicles with halogen headlamps) 1
Housing cover for dipped-beam headlamp
2 Bulb holder for dipped-beam headlamp
X Switch off the lights.
X Open the bonnet.
X Turn housing cover 1anti-clockwise and
remove it.
X Turn bulb holder 2anti-clockwise and pull
it out.
X Pull the bulb out of bulb holder 2.
X Insert the new bulb into bulb holder 2.X
Insert bulb holder 2and turn it clockwise.
X Align housing cover 1and turn it clock-
wise.
Replacing the bulbs in the main-beam
headlamp 1
Housing cover for main-beam headlamp
2 Bulb holder for main-beam headlamp
X Switch off the lights.
X Open the bonnet.
X Turn housing cover 1anti-clockwise and
remove it.
X Turn bulb holder 2anti-clockwise and pull
it out.
X Pull the bulb out of bulb holder 2.
36 These bulbs must be replaced at a qualified specialist workshop, e.g. a Mercedes-Benz Service Centre. Practical advice
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Fuses
344have the correct fuse rating for the system
concerned. Otherwise, components or sys-
tems could be damaged.
The fuses are located in various fuse boxes:
R Dashboard fuse box on the front-passenger
side
R Fuse box in the engine compartment on the
right-hand side of the vehicle
R Fuse box in the luggage compartment on
the right-hand side of the vehicle
Fuse allocation chart The fuse allocation chart is located with the
vehicle tool kit (Y page 255) in the stowage
compartment under the luggage compart-
ment floor. Before changing a fuse
X Park the vehicle.
X Switch off all electrical consumers.
X Remove the key from the ignition lock. Dashboard fuse boxes
1
Cover
! Do not use a pointed object such as a
screwdriver to open the cover in the dash-
board. You could damage the dashboard or
the cover.
X To open: open the front-passenger door.
X Pull cover 1outwards in the direction of
the arrow and remove it. X
To close: clip in cover 1at the front.
X Fold cover 1inwards until it engages.
X Close the front-passenger door. Fuse box in the engine compartment
Illustrated: GL 320 CDI
1
Cover
2 Clamps
X To open: open the bonnet (Y page 219).
X Remove moisture from the fuse box using
a dry cloth.
X Fold clamps 2upwards.
X Fold up fuse box cover 1and remove it
towards the front of the vehicle. Practical advice
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Fuses
345
X
To close: check whether the rubber seal is
lying correctly in lid 1.
X Insert lid 1at the rear of the fuse box into
the retainer.
! The cover must be fitted properly, other-
wise moisture or dirt could affect the oper-
ation of the fuses.
X Fold down lid 1and secure with clamps
2.
X Close the bonnet (Y page 220). Fuse box in the luggage compartment
1
Catches
2 Cover X
To open: open the tailgate.
X Turn catches 1in the direction of the
arrow.
X Open cover 2downwards. Practical advice
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