Page 194 of 253
192Vehicle care
3. Tail / stop light, if not equippedwith LEDs (1)
Turn light (2)
Back-up light (3)
4. Remove bulb holder. Remove and renew bulb.
5. Insert bulb holder into the tail light
assembly. Install tail light
assembly in body and tighten.
Close covers and engage.
6. Switch on ignition, operate and check all lights.
Number plate light
1. Prise the light out with a screwdriver.
2. Remove bulb housing downwards, taking care not to pull
on the cable.
Rotate bulb holder anticlockwise
to disengage.
3. Remove bulb from holder and renew bulb.
4. Insert bulb holder in bulb housing and rotate clockwise.
5. Insert bulb housing and secure using a screwdriver.
Rear fog light
The bulbs are accessible from the
underside of the vehicle.
Page 196 of 253
194Vehicle careFuse extractorA fuse extractor may be located in the
fuse box in the engine compartment.
Place the fuse extractor on the
various types of use from the top or
side, and withdraw fuse.
Engine compartment fuse
box
The fuse box is in the engine
compartment.
Disengage the cover, lift it upwards
and remove.
Mini FusesNo.Circuit1Sunroof2Exterior mirror switch / Rain
sensor / Power window DRV3–4–5Electrical brake control module6Intelligent battery sensor7Steering column lock8Transmission control module9–10Rear view camera / Interior rear
view mirror / Headlight switch /
Headlight11Rear window wiper12Heated rear window13Seat, lumbar support14Heated exterior mirrors
Page 197 of 253
Vehicle care195No.Circuit15LPG module / Fuel system
control module16Seat heating17Transmission control module R/
C / Water pump / Auxiliary
heater18Engine control module R/C19Fuel pump20–21Cooling fan22–23Ignition coil / Injectors24Washer pump25Headlamp actuator26Engine control sensors27–28Ignition29Ignition 1/2No.Circuit30Exhaust system31Left-hand high beam32Right-hand high beam33Engine control module34Horn35Air conditioning system36Front fog light
J-cases Fuses
No.Circuit1Electrical brake control module2Front wiper3Linear power module4Power terminal of instrument
panel fuse box5–6Fuel heater7StarterNo.Circuit8Cooling fan9Cooling fan10Engine control module / Glow
plug11Starter
Instrument panel fuse box
In left-hand drive vehicles, the interior fuse box is located on the underside
of the driver's side instrument panel.
Page 199 of 253
Vehicle care197No.Circuit16Adaptive forward lighting17Column lock18Ultrasonic park assist module19Body control module / Regu‐
lated voltage control20Steering wheel21–22Cigarette lighter / DC accessory
power outlet (front)23Cigarette lighter / DC accessory
power outlet (rear center
console)24Spare25Telematics service module26Heated steering wheel27Instrument panel cluster / Info‐
tainment system / Auxiliary
heater switch28Trailer socketNo.Circuit29Info Display / Infotainment
system30Transmission control module31Instrument panel cluster32Infotainment system33Trailer socket34Passive entry / Passive start
module
S/B Fuses
No.Circuit01Power seat switch02Spare03Power windows front04Power windows rear05Logistic mode06Power seat switchNo.Circuit07Spare08Spare
Midi Fuse
No.CircuitM01PTC
Load compartment fuse box
Located in the left side of rear
compartment.
To access the fuses, remove the cover.
Page 205 of 253

Vehicle care203If the tyre pressure must be reduced
or increased, switch off ignition.
Only mount wheels with pressure
sensors, otherwise the tyre pressure
will not be displayed and w
illuminates continuously.
A spare wheel or temporary spare
wheel is not equipped with pressure
sensors. The tyre pressure
monitoring system is not operational
for these tyres. Control indicator w
illuminates. For the further three
tyres, the system remains
operational.
The use of commercially-available liquid tyre repair kits can impair the
function of the system. Factory-
approved repair kits can be used.
Operating electronic devices or being
close to facilities using similar wave
frequencies could disrupt the tyre
pressure monitoring system.
Each time the tyres are replaced, tyre pressure monitoring system sensors
must be dismounted and serviced.
For the screwed sensor, replace
valve core and sealing ring. For the
clipped sensor, replace complete
valve stem.Vehicle loading status
Adjust tyre pressure to load condition
according to tyre information label or
tyre pressure chart 3 235, and select
the appropriate setting in the menu Tyre Load in the Driver Information
Centre, Vehicle Information Menu
3 97. This setting is the reference for
the tyre pressure warnings.
The Tyre load menu only appears
when the vehicle is at a standstill and the parking brake is applied. On
vehicles with automatic transmission
the selector lever must be in P.
Midlevel display:Select the Tyre load page under the
Vehicle Information Menu ? in the
Driver Information Centre 3 97.
● Light for comfort pressure up to
three people.
● Eco for Eco pressure up to three
people.
● Max for full loading.
Uplevel display:
Select the Tyre load page under the
Options Menu in the Driver
Information Centre 3 97.
Page 206 of 253

204Vehicle care●Light for comfort pressure up to
three people.
● Eco for Eco pressure up to three
people.
● Max for full loading.
Tyre pressure sensor matching process
Each tyre pressure sensor has a
unique identification code. The
identification code must be matched
to a new wheel position after rotating
the wheels or exchanging the
complete wheel set and if one or more tyre pressure sensors were replaced.The tyre pressure sensor matching
process should also be performed
after replacing a spare wheel with a
road wheel containing a tyre pressure
sensor.
The malfunction light w and the
warning message should extinguish
at the next ignition cycle. The sensors
are matched to the wheel positions,
using a relearn tool, in the following
order: left side front wheel, right side
front wheel, right side rear wheel andleft side rear wheel. The turn signal
light at the current active position is
illuminated until sensor is matched.
Consult a workshop for service. There are two minutes to match the first
wheel position, and five minutes
overall to match all four wheel
positions. If it takes longer, the
matching process stops and must be
restarted.
The tyre pressure sensor matching
process is:
1. Apply the parking brake.
2. Turn the ignition on.
3. On vehicles with automatic transmission: set the selector
lever to P.
On vehicles with manual
transmission: select neutral.
4. Press MENU on the turn signal
lever to select the Vehicle
Information Menu in the Driver
Information Centre.
5. Turn the adjuster wheel to scroll to
the tyre pressure menu.
Midlevel display:
Uplevel display:
Page 210 of 253

208Vehicle care4.Screw the compressor air hose to
the connection on the sealant
bottle.
5. Fit the sealant bottle into the retainer on the compressor.
Set the compressor near the tyre
in such a way that the sealant
bottle is upright.
6. Unscrew valve cap from defective
tyre.
7. Screw the filler hose to the tyre valve.
8. The switch on the compressor must be set to J.
9. Connect the compressor plug to
the power outlet or cigarette
lighter socket.
To avoid discharging the battery,
we recommend running the
engine.
10. Set the rocker switch on the compressor to I. The tyre is filled
with sealant.
11. The compressor pressure gauge briefly indicates up to 6 bar whilstthe sealant bottle is emptying
(approx. 30 s ). Then the pressure
starts to drop.
12. All of the sealant is pumped into the tyre. Then the tyre is inflated.
13. The prescribed tyre pressureshould be obtained within 10 min.
Tyre pressure 3 235. When the
correct pressure is obtained,
switch off the compressor.
If the prescribed tyre pressure is
not obtained within 10 min,
remove the tyre repair kit. Move
the vehicle one tyre rotation.
Reattach the tyre repair kit and
continue the filling procedure for
10 min. If the prescribed tyre
pressure is still not obtained, the
tyre is too badly damaged. Seek
the assistance of a workshop.
Page 217 of 253

Vehicle care215● Apply the parking brake,transmission in neutral,
automatic transmission in P.
● Open the positive terminal protection caps of both batteries.
Lead connection order:
1. Connect the red lead to the positive terminal of the booster
battery.
2. Connect the other end of the red lead to the positive terminal of the
discharged battery.
3. Connect the black lead to the negative terminal of the booster
battery.
4. Connect the other end of the black
lead to a vehicle grounding point,
such as the engine block or an
engine mounting bolt. Connect as far away from the discharged
battery as possible, however at
least 60 cm.
Route the leads so that they cannot
catch on rotating parts in the engine
compartment.
To start the engine: 1. Start the engine of the vehicle providing the jump.
2. After 5 min, start the other engine.
Start attempts should be made for
no longer than 15 s at an interval
of 1 min.
3. Allow both engines to idle for approx. three minutes with the
leads connected.4. Switch on electrical consumers (e.g. headlights, heated rear
window) of the vehicle receiving
the jump start.
5. Reverse above sequence exactly when removing leads.