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Socket for OBD Onboard
Diagnosis
Information ATTENTION
The socket for Onboard Diagnosis is an
intricate component intended to be used in
conjunction with specialized equipment to
check the vehicle’s primary emissions system.
Improper use of the socket for Onboard Diag‐
nosis, or contact with the socket for Onboard
Diagnosis for other than its intended purpose,
can cause vehicle malfunctions and creates
risks of personal and property damage. Given
the foregoing, the manufacture of your vehicle
strongly recommends that access to the
socket for Onboard Diagnosis be limited to a
dealer's service center or another qualified
service center or repair shop or other persons
that have the specialized training and equip‐
ment for purposes of properly utilizing the
socket for Onboard Diagnosis.◀
Position
There is an OBD socket on the driver's side for
checking the primary components in the vehi‐
cle's emissions.
Emissions
▷The warning lamp lights up:
Emissions are deteriorating. Have
the vehicle checked as soon as
possible.▷The warning lamp flashes under certain
circumstances:
This indicates that there is excessive mis‐
firing in the engine.
Reduce the vehicle speed and have the
system checked immediately; otherwise,
serious engine misfiring within a brief pe‐
riod can seriously damage emission con‐
trol components, in particular the catalytic
converter.Seite 185MaintenanceMobility185
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Replacing componentsVehicle features and optionsThis chapter describes all standard, country-
specific and optional features offered with the
series. It also describes features that are not
necessarily available in your car, e. g., due to
the selected options or country versions. This
also applies to safety-related functions and
systems. The respectively applicable country
provisions must be observed when using the
respective features and systems.
Onboard vehicle tool kit
The onboard vehicle tool kit is located under
the cargo floor panel.
Wiper blade replacement Information ATTENTION
If the wiper arm falls onto the windshield
without the wiper blades installed, the wind‐
shield can be damaged. There is a risk of dam‐
age to property. Secure the wiper arm when
replacing the wiper blades and do not fold
down the wipers without the wiper blades in‐
stalled.◀
Replacing the wiper blades1.To change the wiper blades, fold up, refer
to page 73, the wiper arms.2.Fold up and hold the wiper arm firmly.3.Squeeze the retainer spring, arrow 1, and
fold up the wiper blade, arrow 2.4.Remove the wiper blade forward from the
catch.5.Insert the new wiper blade in reverse order
of removal until it locks in place.6.Fold down the wipers.
ATTENTION
Folded-away wipers can be jammed
when the hood is opened. There is a risk of
damage to property. Make sure that the wipers
with the wiper blades mounted are folded
down onto the windshield before opening the
hood.◀
Lamp and bulb replacement Information
Lights and bulbs
Lights and bulbs make an essential contribu‐
tion to vehicle safety.
The manufacturer of the vehicle recommends
that you have appropriate work performed by a
dealer’s service center or another qualified
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service center or repair shop if you are unfami‐
liar with it or if it has not been described here.
A spare lamp box is available from a dealer’s
service center or another qualified service cen‐
ter or repair shop.
WARNING
Bulbs can get hot during operation. Con‐
tact with the bulbs can cause burns. There is a
risk of injuries. Only change bulbs after they
have cooled off.◀
WARNING
Work on switched-on lighting systems
can cause short circuits. There is a risk of inju‐
ries or a risk of property damage. When work‐
ing on the lighting system, switch off the lamps
in question. If necessary, heed the bulb manu‐
facturer's instructions.◀
DANGER
There can be high voltage in the lighting
system. There is danger to life. The manufac‐
turer of your vehicle recommends that the
work on the lighting system including bulb re‐
placement be performed by a dealer’s service
center or another qualified service center or re‐
pair shop.◀
CAUTION
Dirty bulbs have a reduced service life.
There is a risk of property damage. Do not hold
new bulbs with your bare hands. Use a clean
cloth or something similar, or hold the bulb by
its base.◀
Light-emitting diodes (LEDs)
Some items of equipment use light-emitting
diodes installed behind a cover as a light
source.
These light-emitting diodes, which are related
to conventional lasers, are officially designated as Class 1 light-emitting diodes.WARNING
Too intensive brightness can irritate or
damage the retina of the eye. There is a a risk
of injury. Do not look directly into the head‐
lights or other light sources. Do not remove the
LED covers.◀
Headlight glass
Condensation can form on the inside of the ex‐
ternal lights in cool or humid weather. When
driving with the lights switched on, the con‐
densation evaporates after a short time. The
headlight glass does not need to be changed.
If despite driving with the lights switched on,
increasing humidity forms, e. g. water droplets
in the lamp, the manufacturer of your vehicle
recommends having it checked by a dealer’s
service center or another qualified service cen‐
ter or repair shop.
Headlight setting
The headlight adjustments can be affected by
changing lights and bulbs. After the headlight
adjustment was changed, have it checked and,
if necessary, corrected by a dealer’s service
center or another qualified service center or re‐ pair shop.
Front lights, bulb replacement
Xenon headlights
Information DANGER
There can be high voltage in the lighting
system. There is danger to life. The manufac‐
turer of your vehicle recommends that the
work on the lighting system including bulb re‐
placement be performed by a dealer’s service
center or another qualified service center or re‐
pair shop.◀
Because of the long life of these bulbs, the
likelihood of failure is very low. Switching the
lights on and off frequently shortens their life.Seite 187Replacing componentsMobility187
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For checking and adjusting headlamp aim,
contact a dealer’s service center or another
qualified service center or repair shop.
Overview1Parking lights / daytime running lights2Low beams/high beams/headlight flasher3Turn signal
Xenon headlights
Low beams and high beams are designed with
xenon technology.
The parking lights and daylight running lights
are made using LED technology.
In the case of a malfunction, contact a dealer’s
service center or another qualified service cen‐
ter or repair shop.
Turn signal
Follow general instructions, refer to page 186.
21-watt bulb, PY21W1.In the wheel house, loosen the two brack‐
ets and remove the cover.2.If necessary, pull the inside trim of the
wheel house slightly inward. Turn the bulb
socket counterclockwise and remove.3.Press the bulb gently into the socket, turn
counterclockwise and remove.4.Install the new bulb and bulb holder in re‐
verse order of removal.5.Attach the cover to the wheel house.
Turn signal in exterior mirror
The turn signals in the exterior mirrors feature
LED technology. In the case of a malfunction,
contact a dealer’s service center or another
qualified service center or repair shop.
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Tail lamps, bulb replacement
Overview1Turn signal2Top brake lamp3Reversing lamp4Rear lamp5Bottom brake lights
Bulb replacement Follow general instructions, refer to page 186.
Turn signal, brake, tail, rear or reversing lamp:
21-watt bulb, P21W
Rear fog lamp: 6-watt bulb, H6W.
Removing the tail lamp
1.Open tailgate.2.Open the two covers on the tail lamp.3.With the handle of the screwdriver from the
onboard vehicle tool kit, loosen and re‐
move the nuts on the two fasteners. Make
sure that the nuts do not drop into thebumper area. In addition to the two outer
fasteners, there is another inner fastener.4.Hold the grip rail in one hand, arrow 1, and
brace against the outside with your other
hand, arrow 2. Carefully pry out the tail
lamp, arrow 3, until the rubber mount re‐
leases from the inner fastener.5.Remove the plug from the bulb holder.
Replacing the bulbs
1.Loosen the six fasteners on the tail lamp,
arrows 1, and remove the tail lamp from the
lamp holder, arrow 2.2.Press the nonworking bulb gently into the
socket, turn counterclockwise and remove.Seite 189Replacing componentsMobility189
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3.Proceed in the reverse order to insert the
new bulb and attach the bulb holder to the
tail lamp. Make sure that the bulb holder
engages in all fasteners.
Installing the tail lamp
1.Connect the plug to the bulb holder.2.Insert the tail lamp straight in and press it
in, arrow 1, until the rubber mount latches
in the inner fastener. Make sure when in‐
serting the tail lamp that the rubber lip, ar‐
row 2, on the top side of the tail lamp does
not fold over. Screw on the two nuts, ar‐
row 3, and close covers.
Central brake lamp and license plate
lamp
Follow general instructions, refer to page 186.
These lights are made using LED technology.
In the case of a malfunction, contact a dealer’s
service center or another qualified service cen‐
ter or repair shop.
Changing wheels/tires General information
When sealants are used, an immediate wheel
change when there is a loss of tire inflation
pressure in the event of a flat tire is unneces‐
sary.
No spare tire is provided with your vehicle.
If needed, the tools for changing wheels are
available as accessories from a dealer’s service
center or another qualified service center or re‐
pair shop.
Jacking points for the vehicle jack
The jacking points for the vehicle jack are lo‐
cated at the positions shown.
Vehicle battery Maintenance
The battery is maintenance-free.
The added amount of acid is sufficient for the
service life of the battery.
More information about the battery can be re‐
quested from a dealer’s service center or an‐
other qualified service center or repair shop.
Battery replacement ATTENTION
Vehicle batteries that are not compatible
can damage vehicle systems and impair vehi‐
cle functions. There is a risk of personal and
property damage. Only vehicle batteries that
are compatible with your vehicle type should
be installed in your vehicle. Information on
compatible vehicle batteries is available at your
dealer’s service center.◀
After a battery replacement, the manufacturer
of your vehicle recommends that the vehicle
battery be registered on the vehicle by a
dealer’s service center or another qualified
service center or repair shop to ensure that all
comfort features are fully available and that any
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Check Control messages of these comfort fea‐
tures are no longer displayed.
Charging the battery
General information
Make sure that the battery is always suffi‐
ciently charged to guarantee that the battery
remains usable for its full service life.
The battery may need to be charged in the fol‐
lowing cases:▷When making frequent short-distance
drives.▷If the vehicle is not used for more than a
month.
Information
ATTENTION
Battery chargers for the vehicle battery
can work with high voltages and currents,
which means that the 12 volt on-board net‐
work can be overloaded or damaged. There is
a risk of damage to property. Only connect
battery chargers for the vehicle battery to the
starting aid terminals in the engine compart‐
ment.◀
Starting aid terminals In the vehicle, only charge the battery via the
starting aid terminals, refer to page 195, in the
engine compartment with the engine off.
Power failure After a power loss, some equipment needs to
be newly initialized or individual settings up‐
dated, for example:
▷Seat and mirror memory: store the posi‐
tions again.▷Time: update.▷Date: update.▷Glass sunroof and sliding visor: initialize
the system, refer to page 48.Disposing of old batteries
Have old batteries disposed of by a
dealer’s service center or another
qualified service center or repair shop
or take them to a collection point.
Maintain the battery in an upright position for
transport and storage. Secure the battery so
that it does not tip over during transport.
Fuses Information WARNING
Incorrect and repaired fuses can overload
electrical lines and components. There is risk
of fire. Never attempt to repair a blown fuse.
Do not replace a nonworking fuse with a sub‐
stitute of another color or amperage rating.◀
Plastic tweezers and information on the fuse
types and locations are stored in the fuse box
in the cargo area.
In the engine compartment1.Use the onboard vehicle tool kit to loosen
the three cover screws, arrow 1.2.Squeeze and raise the holder, arrow 2.Seite 191Replacing componentsMobility191
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3.Remove the cover from one side, arrow 3.4.Press the four fasteners and remove the
cover.
Attaching the covers
1.When attaching the cover, make sure that
all four fasteners are engaged.2.Attach the cover under the rubber lip and
then thread it between the bars.3.Press down on the holder and tighten the
three screws.
In the cargo area
Fold up the cargo floor panel.
Information on the fuse types and locations is
found on a separate sheet.
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