Fuses and light bulbs
Fuses
Introduction
Fig. 184
Blown fuse
This chapter contains information on the following subjects:
Fuses in the dashboard
153
Fuse arrangement in the dashboard
154
Fuses in the engine compartment
155
Fuse arrangement in the engine compartment
156
Individual electrical circuits are protected by fuses. A blown fuse is recognisa-
ble from the melted-through metal strip » Fig. 184.
WARNINGAlways read and observe the warning notes before completing any work in
the engine compartment » page 128, Engine compartment .
CAUTION
■
Replace the faulty fuse with a new one of the same amperage.■If a newly inserted fuse again blows after a short time, then 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. 185
Remove the fuse box cover.
Read and observe and on page 153 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. 185 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
.
153Fuses and light bulbs
Fuse arrangement in the dashboardFig. 186
Fuses: LHD / RHD
Read and observe
and on page 153 first.
No.Power consumer1Light - left2Central locking, windscreen and rear window washer system (only
with KESSY or heated windscreen)3Ignition4Light - right5Power windows - driver6Interior lighting7Horn8Towing hitch - left light
9
Operating lever beneath the steering wheel, engine control unit (on-
ly without KESSY), automatic gearbox (only without KESSY), auto-
matic gearbox (only without KESSY), ESC (only without KESSY), tow-
ing equipment (only without KESSY), power steering (only without
KESSY)10Power windows - rear left11Headlight cleaning system12Infotainment display13Voltage stabiliser for taxi vehicles14Operating lever under the steering wheel, light switch, ignition key
removal lock (automatic gearbox), headlight flasher, SmartGate, rain
sensor, rear view cameraNo.Power consumer15Air conditioning, automatic transmission, diagnostic connector, heat-
ed windscreen16Instrument cluster, emergency call17Anti-theft alarm, horn18Rear seat heating19Not assigned20Not assigned21Not assigned22Windscreen and rear window washer system (without KESSY or
without heated windscreen)23Heated front seats24Blower fan for air conditioning system, heating, air conditioning,
heating25Not assigned26Heated front seats27Rear window wiper28Not assigned29airbag30Electric windows, reverse light switches, air conditioning system,
Park Assist, exterior mirror settings, power feed for centre button
strip, power feed for side button strip, interior mirror31Fuel pump, radiator fan, cruise control, windscreen and rear window
washer, light switch32Diagnostic connector, headlight levelling, control lever under the
steering wheel, interior lighting, voltage stabiliser for taxi vehicles33Engine starting, clutch pedal switch34Heated windscreen washer jets35Not assigned36Not assigned37Radar38Not assigned39Electrical auxiliary heating system40Not assigned 154Do-it-yourself
No.Power consumer41Rear window heater42Power windows - front passenger43Trailer device - electrical outlet44Cigarette lighter, 12-volt socket in the interior, 12-volt 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. 187
Cover for the fuse box - variant 1
Fig. 188
Cover for the fuse box - variant 2
Read and observe
and on page 153 first.
Replacing fuses
›
Remove the ignition key, turn off the lights and all electrical consumers.
›
Press the cover in the direction of arrow
1
» Fig. 187 or » Fig. 188 and re-
move 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 used
correctly, otherwise water may penetrate into the fuse box – there is a danger
of damage to the vehicle!155Fuses and light bulbs
Fuse arrangement in the engine compartmentFig. 189
Fuses
Read and observe and on page 153 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 intercooling15Engine control system, voltage stabiliser for taxi vehicles16Starter17Engine control system18Additional electric heater, valve for intake manifold, wastegate, 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
157
Replacing the bulb for the side light (Halogen headlights)
157
Changing the bulb for main beam, separate daytime running lights, and
parking light
157
Changing the bulb for the front turn signal light
158
Changing light bulbs for fog lights
159
Changing the bulb for the licence plate light
159
Removing/installing taillights
160
Replacing the bulbs in the taillight assembly
160
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 128.■
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.
156Do-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. 190
Left headlight
Read and observe and on page 156 first.
Bulb arrangement » Fig. 190
Low beam or low beam with Xenon gas discharge lamp
Main beam, separate daytime running lights, and parking light
Turn signal light (at the front)
ABCReplacing the bulb for the side light (Halogen headlights)Fig. 191
Changing the bulb for the low beam
Read and observe
and on page 156 first.
›
Remove the protective cap
A
» Fig. 190 on page 157 .
›
Remove the socket with the bulb by jiggling it out in the direction of arrow
1
» Fig. 191 .
›
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. 190 on page 157 .
Changing the bulb for main beam, separate daytime running
lights, and parking light
Fig. 192
Replacing the bulb for main
beam and separate daytime run-
ning lights
157Fuses and light bulbs
DisposalAcceptance and recycling of used vehicles120
Distance warning107
Warning light36
Door Child safety lock
49
Emergency locking151
Emergency locking of the driver's door150
Opening/Closing48
Door alarm37
Drive Driving through water
95
DriveGreen94
Driving Emissions
163
Fuel consumption163
Maximum speed167
through water95
E
Economical driving
94
EDL98
Electric power windows Operational faults
53
Electric window51
Buttons in the driver´s door52
Electronic Differential Lock (EDL)98
Electronic immobiliser86
Emergency Hazard warning light system
57
Jump-starting147
Selector lever-unlocking151
Starting / stopping the engine with the push of a button
87
Starting the engine / stopping with the push of a button
88
Towing the vehicle148
Towing the vehicle using the trailer device149
Tyre repair145
Unlocking/locking the door150
Unlocking / locking the door151
Emergency equipment Fire extinguisher
140
First aid kit140
Jack141
Reflective vest140
Vehicle tool kit141
Warning triangle140
Emergency spare Removing / stowing
142
Emission control system32
Emissions163
Engine Information messages
35
Running in94
Engine compartment128
Brake fluid133
Coolant131
Engine oil130
Overview129
Vehicle battery133
Windscreen washer fluid130
Engine drag torque control (MSR)97
Engine number162
engine oil specification
130
Engine oil130
Check131
Oil changing130
Refilling131
Warning light35
EPC32
ESC Operation
97
Warning light31
Extended warranty5
F
Fastening elements
76
Fatigue detection108
Films123
Fire extinguisher140
First aid kit140
Flashing55
Floor covering in the luggage compartment79
Fog lights Warning light
34
Fog lights/rear fog light56
Fog lights with the CORNER function56
Footmats91
refer to footmats91
Force limiter Window
53
Front Assist105
Deactivation/activation108
Distance warning107
Malfunctions108
Operation106
Radar sensor106
Warning and automatic braking107
Warning light36, 37
Front seats63
Fuel126
Diesel127
Fuel gauge29
refer to Fuel126
Refuelling126
Unleaded petrol126
Warning light33
Fuel consumption163
Fuel reserve33
Fuses153
in the dashboard153, 154
in the engine compartment155, 156
G
Gearbox Information messages
34
171Index