
XBi-Xenon headlamps:turn bulb holder with
bulb ;counter-clockwise and remove it.
Halogen headlamps: press the spring
catches of the bulb holder together and
remove the bulb holder with bulb ;.
XPull the bulb out of the bulb holder.
XPress a new bulb into the bulb holder.
XBi-Xenon headlamps:insert the bulb holder
with bulb ;into the lamp and turn clockwise.
Halogen headlamps: insert the bulb holder
with bulb ;into the lamp.
The bulb holder with bulb ;engages audibly.
XReplace cap :and turn it clockwise to the
stop.
The cap audibly engages.
XClose the hood (Ypage 219).
Turn signal lamps
XSwitch off the lighting system.
XOpen the hood (Ypage 218).
XTurn bulb holder :counter-clockwise and
remove it.
XApplying light pressure to the bulb, turn it
counter-clockwise and remove it from bulb
holder :.
XPress the new bulb into bulb holder :and
screw it in clockwise.
XInsert bulb holder :into the lamp and turn it
clockwise to tighten.
XClose the hood.
Additional turn signal lamp (all-wheel-
drive vehicles)
Additional turn signals (example: Cargo Van and
Passenger Van)
The additional turn signals are mounted on the
side of the vehicle's front wings.
XSwitch off the lighting system.
XUndo screws :and remove lamp lens ;.
XApplying light pressure to the bulb, turn it
counter-clockwise and remove it from the
bulb holder.
XPress the new bulb into the bulb holder and
screw it in clockwise.
XPosition lamp lens;and tighten screws :.
88Changing bulbs
Lights and windshield wipers

Rear bulbs (Cargo Van/Passenger
Van)
Overview of bulb types
LightsBulb type
:High-mounted brake
lampLED
;Brake lamp/tail lampP21W/5W
=Turn signal lampsPY 21 W
?Tail lamps/standing
lampsR5W
ALicense plate lampW5W
BRear fog lamps (driver's
side)P21W
CBackup lampsP21W
Tail lamps
XSwitch off the lighting system.
XOpen the rear door.
XUndo screws :and unclip the lamp lens in
the direction of the arrow.
XPull the connector off the bulb holder.
;Retaining lugs
=Brake lamps
?Turn signal lamps
AStanding lamp/tail lamp
BBackup lamps
CRear fog lamp
Changing bulbs89
Lights and windshield wipers
Z

XReleaseretaining lugs ;and tak eth ebulb
holder out of th etai llamp .
XApplyin gligh tpressur eto th ebulb, tur nit
counter-clockwise and remove it from th e
bulb holder.
XPress th ene wbulb int oth ebulb holder and
screw it in clockwise.
XPress th econnecto rint oth ebulb holder.
XInser tth elamp lens.
To do this, cli pth ebulb holder int oth ethree
hole sprovide dat th eside and tighten
screws :.
License plate lamp
XSwitchoff th elighting system.
XInser t ascrewdriver or similar implement int o
recess ;and carefully pry off lamp len s:.
XPull th ebulb out of th ebulb holder.
XInser t anewbulb.
XAlign lamp len s: and cli pit in so that it
engages.
Rear bulbs (Cab Chassis)
Overview of bulb types
Chassis (example: Cab Chassis)
LightsBulb type
:Perimete rlamp/stand-
ing lampR 5 W
;Tail lamp sR 5 W
=Brake lamp sP21 W
?Turn signal lamp sPY 21W
ABackup lamp sP21 W
BRear fog lamp s(driver's
side )P21 W
CLicense plat elampR 5 W
Tail lamps
:Screws
;Lam plen s
=Perimete rlamp/standin glamp
?Turn signal lamp s
ABrake lamps
BTail lamps
90Changing bulbs
Lights and windshield wipers

CRear fog lamp
DLicense platelamp
EBackup lamp s
XSwitchoff th elighting system.
XUndo screws :and remove lamp len s;.
XApplyin gligh tpressur eto th ebulb, tur nit
counter-clockwise and remove it from th e
bulb holder.
XPress th ene wbulb int oth ebulb holder and
screw it in clockwise.
XPosition lamp len s; and tighten screws :.
Additional lamps
Additional turn signal lamp on the roof
Type of lamp : P21 W
XSwitc hoff th elighting system.
XUndo screws :and remove lamp len s;.
XApplyin gligh tpressur eto th ebulb, tur nit
counter-clockwise and remove it from th e
bulb holder.
XPress th ene wbulb int oth ebulb holder and
screw it in clockwise.
XPosition lamp len s; and tighten screws :
again .
Perimeter lamp (Cab Chassis)
Type of lamp : W 5 W
XSwitchoff th elighting system.
XUndo screws :and remove th elamp unit.
XTurn bulb holder ;and remove it .
XRemove thebulb from bulb holder ;.
XPress thene wbulb int obulb holder ;.
XScrew bulb holder ;intoth elamp unit.
XCarefully position th elamp housing and
tighten screws :.
Courtesy lights, rear compartment
Bulb type: W5W
XPress in thelatching spring of courtesy
ligh t: with a suitable implement ,e.g. a
screwdriver.
XPry off courtesy ligh t:.
XDisconnect cable connecto r=.
XUnscrew bulb holder ;.
Changing bulbs91
Lights and windshield wipers
Z

On vehicles with a battery main switch, you must
first switch on the power supply (Ypage 118).
iTo unlock the steering, move the steering
wheel slightly while turning the key to position
1.
Preparing for a journey
Visual check of the vehicle exterior
XIn particular, check the following components
on the vehicle, and on the trailer as necessary:
Rlicense plates, vehicle lighting, turn signals,
brake lamps and wiper blades for dirt and
damage
Rtires and wheels for firm seating, correct
tire pressure and general condition
Rtrailer tow hitch for play and security
The trailer coupling is one of the most
important vehicle parts with regard to road
safety. The separate instructions issued by
the manufacturer pertaining to operation,
care and maintenance should be observed.
Rthat contour markings on attachments and
bodies are in good condition
XRectify any noticeable defects before com-
mencing the journey.
Checks in the vehicle
Emergency equipment and first-aid kit
XCheck the equipment to make sure that it is
accessible, complete and ready for use.
The first aid and breakdown assistance equip-
ment is in the front door stowage compartments
and behind the driver's seat.
Vehicle lighting
XTurn the key to position 2in the ignition lock.
XCheck the lighting system with the aid of a
second person.
XReplace defective bulbs (Ypage 86).
Before driving off
GWARNING
Objects in the driver's footwell may restrict
the clearance around the pedals or block a
depressed pedal. This jeopardizes the oper-
ating and road safety of the vehicle. There is a risk of an accident.
Stow all objects securely in the vehicle so that
they do not get into the driver's footwell.
When using floormats or carpets, make sure
that they are properly secured so that they do not slip or obstruct the pedals. Do not place
several floormats or carpets on top of one
another.
GWARNING
Unsuitable footwear can hinder correct usage of the pedals, e.g.:
Rshoes with thick soles
Rshoes with high heels
Rslippers
There is a risk of an accident.
Wear suitable footwear to ensure correct
usage of the pedals.
XSecure the load as per the loading guidelines
(Ypage 212).
XStow luggage items securely. Secure the load
as per the loading guidelines (Ypage 212).
XMake sure that the floormats and carpets are
properly secured so that they cannot slip and
obstruct the pedals.
XClose all doors.
Starting the engine
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces with-
out sufficient ventilation.
!Do not depress the accelerator pedal when
starting the engine.
XBefore starting the engine, make sure that:
120Driving
Driving and parking

Lights
Display messagesPossible causes/consequences andMSolutions
b
Low beam left
The left-hand low beam is faulty3.
XHalogen headlamps:replace the bulb as soon as possible
(Ypage 87).
XBi-Xenon headlamps: consult a qualified specialist workshop as
soon as possible.
b
Low beam right
The right-hand low-beam headlamp is faulty3.
XHalogen headlamps: replace the bulb as soon as possible
(Ypage 87).
XBi-Xenon headlamps: consult a qualified specialist workshop as
soon as possible.
b
Cornering lt. left
The left-hand cornering light is faulty3.
XReplace the bulb as soon as possible (Ypage 87).
b
Cornering lt. right
The right-hand cornering light is faulty3.
XReplace the bulb as soon as possible (Ypage 87).
b
Lights on auto‐matic. Remove key
The automatic headlamp feature is active: the light switch is in the
à position and you have forgotten to remove the key.
XRemove the key from the ignition lock.
b
Turn signal left
The left-hand turn signal is faulty.
XChange the bulb as soon as possible in the front (Ypage 88) or rear
(Ypage 89) indicator lamp.
b
Turn signal right
The right-hand turn signal is faulty.
XChange the bulb as soon as possible in the front (Ypage 88) or rear
(Ypage 89) indicator lamp.
b
Brake lamp left
The left brake lamp is faulty3.
XReplace the bulb as soon as possible (Ypage 89).
b
Brake lamp right
The right brake lamp is faulty3.
XReplace the bulb as soon as possible (Ypage 89).
b
Third brake lamp
The high-mounted brake lamp is faulty3. This display message will only
appear if all LEDs have failed.
XConsult a qualified specialized workshop as soon as possible.
b
High beam left
The left high-beam headlamp is faulty3.
XReplace the bulb as soon as possible (Ypage 87).
3Depending on the equipment, the bulb-failure indicator may not befeatured for any lamps other than the turn
signals.
Display messages185
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
b
Highbea mright
The right high beam headlamp is fault y3.
XReplaceth ebulb as soo nas possibl e (Ypage 87).
b
Licenseplate lam p
Alicense plat elamp is fault y3.
XReplaceth ebulb as soo nas possibl e (Ypage 90).
b
Switch off lights
You haveforgotte nto switch off th elights when leaving th evehicle.
XTurn th eligh tswitch to $.
b
Foglampfront lef t
The left-han dfron tfog lamp is faulty.3
XHav eth ebulb replace das soo nas possibl eat aqualified specialist
workshop .
b
Foglampfront right
The right-hand fron tfog lamp is fault y3.
XHaveth ebulb replace das soo nas possibl eat aqualified specialist
workshop .
b
Rearfoglam p
The rear fog lamp is fault y3.
XReplaceth ebulb as soo nas possibl e (Ypage 89).
b
Parkinglam pfrontlef t
The fron tlef tparking lamp/standin glamp is fault y3.
XReplaceth ebulb as soo nas possibl e (Ypage 87).
b
Parkinglam pfrontright
The fron tright parking lamp/standin glamp is fault y3.
XReplaceth ebulb as soo nas possibl e (Ypage 87).
b
Reverselam p
Abackup lamp is fault y3.
XReplaceth ebulb as soo nas possibl e (Ypage 89).
b
Taillam plef t
The left-han dtai llamp is faulty.3
XReplac eth ebulb as soo nas possibl e (Ypage 89).
b
Taillam pright
The right-hand tai llamp is faulty.3
XReplac eth ebulb as soo nas possibl e (Ypage 89).
b
Marker lam p
Aperimete rlamp is faulty.3
XReplac eth ebulb as soo nas possibl e (Ypage 91).
3Dependin gon th eequipment, th ebulb-failure indicato rmay no tbe featured for any lamp sother than th etur n
signals.
186Display messages
On-board computer and displays

ProblemPossible causes/consequences andMSolutions
7
The red seat belt
warning lamp
lights up continu-
ously or flashes. A
warning tone may
also sound.The warning lamp is to remind you to fasten your seat belt.
XFasten seat belt (Ypage 42).
bWhen the key is
turned to position
2in the ignition
lock, the yellow
bulb warning
lamp lights up.One of the exterior lighting bulbs is faulty, with the exception of the
perimeter lamps and the trailer lighting.
iDepending on the equipment, the bulb failure indicator can fail for
all lamps with the exception of the turn signal lamps.
XReplace the faulty bulb as soon as possible (Ypage 86).
1 The yellow "door
open" indicator
lamp is lit while
driving.The vehicle is moving without all doors or the hood being closed.
XClose the doors or hood.
1The yellow "door
open" indicator
lamp is lit.The electrical step has retracted or extended only partially or not at all.
XMake sure there is sufficient free space for the electrical step.
XOpen or close the sliding door again.
XIf the electrical step still does not extend or retract fully, push the
step in manually (Ypage 67). Before stepping out, remind the pas-
sengers that the step is missing.
Ð The indicator
lamp for the
steering is lit
when the ignition
is switched on.The power assistance for the steering has malfunctioned. You need to
steer more forcefully.
XCarefully continue to a qualified specialist workshop and have the
steering checked immediately.
Indicator and warning lamps in the instrument cluster203
On-board computer and displays
Z