Fuses and light bulbs
Fuses
Introduction
Fig. 178
Blown fuse
This chapter contains information on the following subjects:
Fuses in the dashboard
151
Fuse arrangement in the dashboard
152
Fuses in the engine compartment
153
Fuse arrangement in the engine compartment
154
Individual electrical circuits are protected by fuses. A blown fuse is recognisa-
ble from the melted-through metal strip » Fig. 178.
WARNINGAlways read and observe the warning notes before completing any work in
the engine compartment » page 125, Engine compartment .
CAUTION
■
Replace the faulty fuse with a new one of the same amperage.■If a newly inserted fuse blows again after a short time, seek assistance from
a specialist garage.■
“Do not repair” the fuses and do not replace them with stronger fuses - dan-
ger of fire and damage to another electrical system.
Note
■ We recommend always carrying replacement fuses in the vehicle.■There can be several power consuming devices for one fuse. Multiple fuses
may exist for a single power consuming device.Fuses in the dashboardFig. 179
Remove the fuse box cover.
Read and observe and on page 151 first.
The fuses are located on the bottom of the dash panel behind a cover.
Replacing fuses
›
Remove the ignition key, turn off the lights and all electrical consumers.
›
Remove the cover of the fuse box » Fig. 179 in the direction of the arrow.
›
Remove the plastic clip from the holder in the fuse box cover.
›
Use the clip to pull the fuse out, then insert a new fuse.
›
Replace the bracket at the original position.
›
Insert the top edge of the cover into the dash panel first.
›
Push the lower edge of the cover in the region
A
.
151Fuses and light bulbs
No.Power consumer41Rear window heater42Power windows - front passenger43Trailer device - electrical outlet44Cigarette lighter, 12-volt outlet in the interior, 12-volt power socket
in the luggage compartment45Power windows - rear right46Front and rear window washer, operating lever under the steering
wheel47Trailer device - electrical outlet48Towing hitch - right light49Fuel pump50Infotainment51Heating of the external mirror52KESSY53Steering lock (KESSY)54ABS or ESC55Not assigned56Not assigned57Not assigned58Rear seat heating59Not assigned
Fuses in the engine compartment
Fig. 181
Cover for the fuse box - variant 1
Fig. 182
Cover for the fuse box - variant 2
Read and observe
and on page 151 first.
Replacing fuses
›
Remove the ignition key, turn off the lights and all electrical consumers.
›
Press together the lock buttons of the cover simultaneously in the direction
of arrow
1
» Fig. 181 or » Fig. 182 and remove the cover in the direction of
arrow
2
.
›
Remove the plastic clip from the holder on the cover of the fuse box in the
dashboard.
›
Replace the defective fuse.
›
Replace the cover, push the lock buttons of the cover together and lock.
›
Replace the bracket at the original position.
CAUTION
The cover of the fuse box in the engine compartment must always be inserted
correctly, otherwise water may penetrate into the fuse box – there is a danger
of damage to the vehicle!153Fuses and light bulbs
Fuse arrangement in the engine compartmentFig. 183
Fuses
Read and observe and on page 151 first.
No.Power consumer1Radiator fan2Glow plug system3ABS or ESC4Additional electrical heating, heated windscreen5Additional electrical heating, heated windscreen6Automatic gearbox7Engine control system8Windscreen wipers9Battery data module10ABS or ESC11Not assigned12Injectors, valve for fuel metering, control valve for fuel pressure13Brake pedal switch14Fuel pump, radiator fan, cooling pump, pump for intercooling15Engine control system, voltage stabiliser for taxi vehicles16Starter17Engine control system18Additional electric heater, valve for intake manifold, supercharger reg-
ulator, oil temperature, valve for activated charcoal filter, valve for oil
pressure controlNo.Power consumer19Lambda probe20Glow plug system, crankcase ventilation heater
Bulbs
Introduction
This chapter contains information on the following subjects:
Bulb arrangement in the front headlights
155
Replacing the bulb for the low beam (Halogen headlights)
155
Changing the bulb for main beam, separate daytime running lights, and
parking light
155
Changing the bulb for the front turn signal light
156
Replacing light bulbs for fog lights
157
Changing the bulb for the licence plate light
157
Removing/inserting the taillight
158
Replacing the bulbs in the taillight assembly
158
We recommend having bulbs replaced by a specialist garage or seeking other
expert help in the event of any uncertainties.
▶ Switch off the ignition and all of the lights before replacing a bulb.
▶ Faulty bulbs must only be replaced with the same type of bulbs. The designa-
tion is located on the light socket or the glass bulb.
We recommend having the headlight settings checked by a specialist garage after replacing a bulb in the low, high or fog beam.
In the case of failure of a Xenon gas discharge bulb or an LED diode, visit a
specialist garage.
WARNING■ Always read and observe the warning notes before completing any work
in the engine compartment » page 125.■
Accidents can be caused if the road in front of the vehicle is not suffi-
ciently illuminated and the vehicle cannot or can only be seen with difficul-
ty by other road users.
154Do-it-yourself
WARNING (Continued)■H7 and H15 bulbs are pressurised and may burst when changing the bulb -
risk of injury! We therefore recommended wearing gloves and safety
glasses when changing a bulb.■
Do not carry out any work on the Xenon gas discharge lamps - risk of
death!
CAUTION
■ Do not take hold of the glass bulb with naked fingers (even the smallest
amount of dirt reduces the working life of the light bulb). Use a clean cloth,
napkin, or similar.■
The cap of the filament bulb must always be seated correctly in the head-
light, otherwise this may allow water and debris to enter the headlight - risk of
damage to the headlights.
Note
■ This Owner's Manual only describes the replacement of bulbs where it is pos-
sible to replace the bulbs on your own without any complications arising. Other
bulbs must be replaced by a specialist garage.■
We recommend that a box of replacement bulbs always be carried in the ve-
hicle.
Bulb arrangement in the front headlights
Fig. 184
Left headlight
Read and observe and on page 154 first.
Bulb arrangement » Fig. 184
Low beam or low beam with Xenon gas discharge bulb
Main beam, separate daytime running lights, and parking light
Turn signal light (at the front)
ABCReplacing the bulb for the low beam (Halogen headlights)Fig. 185
Changing the bulb for the low beam
Read and observe
and on page 154 first.
›
Remove the protective cap
A
» Fig. 184 on page 155 .
›
Remove the socket with the bulb by jiggling it out in the direction of arrow
1
» Fig. 185 .
›
Remove the connector.
›
Insert the connector with the new bulb in the direction of arrow
2
so that
the fixing lug
A
fits the bulb into the recess on the reflector.
›
Attach the connector.
›
Fit the protective cap
A
» Fig. 184 on page 155 .
Changing the bulb for main beam, separate daytime running
lights, and parking light
Fig. 186
Replacing the bulb for main
beam and separate daytime run-
ning lights
155Fuses and light bulbs
Fig. 187
Change the light bulb for the parking light
Read and observe
and on page 154 first.
Removing/inserting the bulb for main beam and separate daytime running
lights
›
Remove the protective cap
B
» Fig. 184 on page 155 .
›
Pull the holder until it stops in the arrow direction
1
» Fig. 186 .
›
Remove the socket with the bulb in the direction of arrow
2
.
›
Change the bulb in the socket.
›
Insert the socket with the new bulb into the headlight in the opposite direc-
tion to the arrow
2
.
›
Turn the socket with the new bulb in the opposite direction to the arrow
1
until it stops.
›
Fit protective cap
B
» Fig. 184 on page 155 Insert.
Removing/inserting the bulb for the parking light
›
Remove the protective cap
B
» Fig. 184 on page 155 .
›
Remove the bulb holder with the bulb by jiggling it out in the direction of the
arrow
1
» Fig. 187 .
›
Hold the pedestal with the bulb in the region
A
.
›
Remove the faulty bulb from the holder in the direction of the arrow
2
.
›
Insert a new bulb in the bulb holder up to the stop.
›
Replace the bulb holder in the headlamp with the bulb.
›
Fit protective cap
B
» Fig. 184 on page 155 Insert.
Changing the bulb for the front turn signal lightFig. 188
Changing the bulb for the front
turn signal light
Read and observe and on page 154 first.
›
Turn the socket with the bulb in the direction of arrow
1
» Fig. 188 .
›
Remove the socket with the bulb in the direction of arrow
2
.
›
Change the bulb in the socket.
›
Insert the socket with the new bulb into the headlight in the opposite direc-
tion to the arrow
2
.
›
Turn the socket with the new bulb in the opposite direction to the arrow
1
until it stops.
156Do-it-yourself
Replacing light bulbs for fog lightsFig. 189
Removing / replacing the fog light bulb
Read and observe
and on page 154 first.
Removing the protective grille and headlight
›
Insert the clamps for removing the full wheel trims into opening
A
» Fig. 189 .
›
Pull on the hook in the direction of arrow
1
to remove the protective grille
in the direction of arrow
2
» Fig. 189 .
›
Unscrew the screws
B
with the screwdriver from the tool kit.
›
With the key
2
» page 139 , Vehicle tool kit , unlock the locking
C
in direction
of arrow
3
.
›
Remove the headlight in the direction of arrow
4
.
Replacing the light bulb
›
Press the latch on the connector in the direction of arrow
5
» Fig. 189 .
›
Remove the key in the direction of the arrow
6
.
›
Turn the socket with the bulb to the stop in the direction of the arrow
7
.
›
Remove the socket with the bulb in the direction of arrow
8
.
›
Insert the new bulb into the headlight and turn counter to the direction of
arrow
7
as far as the stop.
›
Attach the connector.
Insert the headlight and grille›Replace the fog light by inserting it in the opposite direction of the arrow 4
» Fig. 189 and tightening.
›
Insert the guard and push it gently until it locks into place.
Changing the bulb for the licence plate light
Fig. 190
Removing the licence plate light / replacing the bulb
Read and observe
and on page 154 first.
›
Push the light in the direction of arrow
1
» Fig. 190 until it is released.
›
Swivel out the lamp in the direction of the arrow
2
and remove it.
›
Remove the faulty bulb from the holder in the direction of the arrow
3
.
›
Insert a new bulb into the holder.
›
Reinsert the lamp in the opposite direction to the arrow
1
.
›
Push on the light until the spring clicks into place.
Note
On vehicles with license plate light, a specialist should be consulted in the
event of an LED failure.157Fuses and light bulbs
Index
A
ABS Operation
94
Warning light32
Acceptance and recycling of used vehicles
117
Accessories115
Adjusting Steering wheel
11
Adjusting the seats10
Adjustment Beam range
54
Advance warning / emergency braking37
Advice on tyre/wheel usage133
Air-conditioning system Air outlet vents
82
Airbag15
Adjustments and impairments to the airbag system
116
Deactivating18
deactivation18
Deployment16
Warning light32
Airbag system15
Air conditioning79
Air distribution control81
Climatronic80
Manual air conditioning80
Air distribution control81
Air outlet vents82
Alarm49
Trailer114
All-year tyres136
Anti-lock braking system (ABS)94
Anti-theft alarm system49
Trailer114
Anti-theft wheel bolts141
Armrest Front63
Rear64
Ashtray69
Assembling the bar ball, Step 1
110
bar ball, Step 2110
Assist systems93
Auto Check Control38
Automatic drive Selector lever
89
Automatic driving light control55
Automatic gearbox89
Kickdown91
Malfunction34
Selector lever emergency unlocking149
Selector lever lock90
Starting-off and driving91
Warning light34
Automatic shutdown of consumers131
Automatic transmission Selector lever lock
90
Tiptronic90
AUX67
Avoiding damage to your vehicle92
B
Ball bar Standy position
109
Ball head Check fitting
111
Ready position109
Battery Change in key
148
Belts12
Belt tensioners14
Bluetooth See Owner´s Manual -Infotainment
6
Bonnet Closing126
Opening126
Boot Cargo element
78
Class N1 vehicles78
Hooks76
Storage compartments77
Boot cover Parking position
77
Boot lid Automatic locking
51
Open/Close51
Brake Assist (HBA)95
Brake booster86
Brake fluid130
Check130
specification130
Brake pads new
86
Brake pedal (automatic transmission) Warning light
34
Brakes Brake booster
86
Brake fluid130
Braking and stabilisation systems93
Handbrake87
Information on braking86
Warning lights30
Brake system93
Braking Running in
91
Breakdown kit143
Breakdown service See Help in an emergency
8
Buttons in the door Electric windows
52
168Index
C
Camera See reversing camera
98
CAR See Owner´s Manual -Infotainment
6
Car battery Check condition
132
Cover132
Disconnecting and reconnecting133
Replacing133
Warning light35
Winter operation132
CAR button See Owner´s Manual -Infotainment
6
Car care Exterior
120
Interior122
Outside121
Car computer see multifunction display
39
Care and maintenance115
Cargo element78
Carrier78
Car washing119
Exterior120
Interior122
washing119
Central locking45
Problems49
Central locking button47
Change Battery
148
Changing Wheels
139
Changing a wheel139
Changing gear Selector lever
89
Charging a vehicle battery132
Check Brake fluid130
Engine oil129
Fit ball head properly111
Oil level129
Checking Battery status
132
Coolant130
Checks Statutory checks
115
Children and safety19
Child safety lock49
Child seat19
Classification21
Installation location21, 23
in the passenger seat21
ISOFIX22, 23
on the front passenger seat20
on the passenger seat21
TOP TETHER24
Cigarette lighter69
Cleaning the vehicle Outside
121
Windows121
Climatronic79
air distribution control81
Automatic operation81
Operating elements80
Clothes hook72
Cockpit27
Lighting57
Comfort signalling55
COMING HOME56
Compartments66
Component protection116
Computer see multifunction display
39
Coolant129
Checking130
Refilling130
Temperature display29
Warning light35
CORNER See Fog lights with the CORNER function
56
Correct routing of seat belt
13
Correct seated position10
Correct seating position12
Cruise Control System100
Cup holders68
D
DAY LIGHT See Daytime running lights
54
Daytime running lights54
De-icing the windscreen and rear window59
Deactivating an airbag18
Deactivation Airbag
18
Delayed locking of the boot lid See boot lid
51
Departure angle164
Diesel125
Diesel fuel125
Diesel particle filter (DPF)36
Digital Clock38
Digital Service Plan118
Dipstick129
Display Compass points
37
Coolant temperature29
Fuel level29
Gear changes38
in the instrument cluster37
MAXI DOT41
Service intervals42
Disposal Acceptance and recycling of used vehicles
117
169Index