Tail lamps, bulb replacement
At a glance1Turn signal2Reversing lamp3Inside brake lamp4Tail lamps5Outside brake lamp
Bulb replacement, exterior tail lamps General information
Follow the general instructions on Lamps and
bulbs, refer to page 206.
Turn signal: 21-watt bulb, P21WLL.
Outer brake lamp: 21-watt bulb, H21W.
The tail lamps feature LED technology. Con‐
tact your service center in the event of a mal‐
function.
Use caution when replacing the bulb
Use caution and proceed one step at a
time when replacing the bulbs to prevent dam‐
age to the tail lamps or vehicle.◀
Removing the exterior tail lamp1.Open trunk lid.2.Use the screwdriver from the onboard ve‐
hicle tool kit to loosen the screw, arrow 1,
and remove the cover, arrow 2.3.Use the screwdriver handle to loosen the
two nuts, arrows 1 and 2, and remove. The
tail lamp is still attached to a rubber mount
on the outside.4.Grasp the inner edge of the tail lamp and
carefully swing it back and out of the rub‐
ber mount, arrow 1. Use your free hand to
hold it in place in order to prevent the tail
lamp from coming loose suddenly. Make
sure that the foam rubber sealing ring is on
the centering pin, arrow 2.Seite 212MobilityReplacing components212
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5.Remove the connecting line from the clip
on the bulb holder.6.Release the catch at the top on the con‐
nector of the connecting line and remove
the connector from the bulb holder.
Replacing the bulbs
1.Loosen the four fasteners, arrow 1, on the
bulb holder and remove the bulb holder
from the tail lamp, arrow 2.2.Press the defective bulb gently into the
socket, turn counterclockwise and remove.3.Proceed in the reverse order to insert the
new bulb and attach the bulb holder. Make
sure that the bulb holder engages in all fas‐
teners.
Installing the tail lamp
1.Connect the connecting line to the tail
lamp and secure the bulb holder in the clip.2.Make sure that the foam rubber sealing
ring is on the centering pin, arrow 2, and is
not damaged.3.Position and firmly press the outer part of
the tail lamp onto the rubber mount, ar‐
row 1 and the inner part onto the centeringcomponent, arrow 2. Make sure that the
tail lamp engages in the rubber mount.4.Screw the tail lamp on with the two nuts.5.Fit the cover in place and screw onto the
fastener. Make sure that the tubular seal is
not pinched.
Lamps in the trunk lid
General information
Follow the general instructions on Lamps and
bulbs, refer to page 206.
Reversing lamps: 16-watt bulb, PW16W.
Inner brake lamps: 21-watt bulb, H21W
Accessing the lamps
1.Use the screwdriver from the onboard ve‐
hicle tool kit to loosen and completely re‐
move the six screws on the trim.2.Carefully loosen the trim from the trunk lid,
starting at the edge and working toward
the area around the recessed grips. Make
sure that the trim does not become stuck.3.Carefully swing out the trim.Seite 213Replacing componentsMobility213
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Replacing the reversing lamp and inner
brake lamp1.Loosen the two holders, arrow 1 and pull
down on the lamp holder to remove, ar‐
row 2.2.Unscrew the defective bulb from the
socket counterclockwise for reversing or
rear fog lamps.3.Insert the new bulb.
Installing the bulb holder
1.Slide the bulb holder onto the two guide
pins, arrow 1. Insert the two contacts, ar‐
row 2, into the connections, arrow 3.2.Press on the bulb holder. Make sure that
the two exterior holders latch into place.3.Swing the trim back onto the trunk lid and
secure.
Tail lamp, license plate lamp and
central brake lamp
Follow the general instructions on Lamps and
bulbs, refer to page 206.
These lamps are made using LED technology.
Contact your service center in the event of a
malfunction.
Changing wheels
Hints The vehicle equipment does not include a
spare tire.
When using run-flat tires or tire sealants, a tire
does not need to be changed immediately in
the event of pressure loss due to a flat tire.
The tools for changing wheels are available as
accessories from your service center.
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.
Your service center will be glad to advise you
on questions regarding the battery.
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Battery replacementUse approved vehicle batteries only
Only use vehicle batteries that have been
approved for your vehicle by the manufacturer;
otherwise, the vehicle could be damaged and
systems or functions may not be fully availa‐
ble.◀
After a battery replacement, have the battery registered on the vehicle by your service cen‐
ter to ensure that all comfort functions are fully
available and that any Check Control mes‐
sages of these comfort functions are no longer
displayed.
Charging the battery
Note Do not plug chargers into the socket
Do not connect battery chargers to the
factory-installed sockets in the vehicle as this
may damage 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 prolonged pe‐
riods, longer than a month.
Starting aid terminals
In the vehicle, only charge the battery via the
starting aid terminals, refer to page 219, in the
engine compartment with the engine off.
Power failure After a temporary power loss, some equipment
needs to be reinitialized.
Individual settings need to be reprogrammed:
▷Seat and mirror memory: store the posi‐
tions again.▷Time: update.▷Date: update.▷Navigation system: wait for the operability
of the navigation.
Disposing of old batteries
Have old batteries disposed of by your
service center or bring them to a recy‐
cling center.
Maintain the battery in an upright position for
transport and storage. Secure the battery so
that it does not tip over during transport.
Fuses Hints Replacing fuses
Never attempt to repair a blown fuse and
do not replace a defective fuse with a substi‐
tute of another color or amperage rating; this
could lead to a circuit overload, ultimately re‐
sulting in a fire in the vehicle.◀
Plastic tweezers and information on the fuse
types and locations are stored in the fuse box
in the cargo area.
In the engine compartment
1.Use the onboard vehicle tool kit to loosen
the three cover screws, arrow 1.2.Pull up the holder, arrow 2.Seite 215Replacing componentsMobility215
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If the first starting attempt is not success‐
ful, wait a few minutes before making an‐
other attempt in order to allow the dis‐
charged battery to recharge.3.Let both engines run for several minutes.4.Disconnect the jumper cables in the re‐
verse order.
Check the battery and recharge if necessary.
Tow-starting and towing Note Tow-starting and towing
When tow-starting and towing the vehi‐
cle, switch off the Intelligent Safety systems;
otherwise, improper behavior of the braking
function of individual systems could result in
an accident.◀
Switch off Intelligent Safety systems, refer to
page 104.
Automatic transmission: transporting
your vehicle
Note
Your vehicle is not permitted to be towed.
Therefore, contact a service center in the
event of a breakdown.
Do not have the vehicle towedHave your vehicle transported on a load‐
ing platform only; otherwise, damage may oc‐ cur.◀
Tow truck
Do not lift the vehicle
Do not lift the vehicle by the tow fitting or
body and chassis parts; otherwise, damage
may result.◀
Use the tow fitting screwed in at the front for
maneuvering the vehicle only.
Manual transmission
Gearshift lever in neutral position.
Towing Follow the towing instructions
Follow all towing instructions; otherwise,
vehicle damage or accidents may occur.◀
▷Make sure that the ignition is switched on;
otherwise, the low beams, tail lamps, turn
signals, and windshield wipers may be un‐
available.▷Do not tow the vehicle with the rear axle
tilted, as the front wheels could turn.▷When the engine is stopped, there is no
power assist. Consequently, more force
needs to be applied when braking and
steering.▷Larger steering wheel movements are re‐
quired.▷The towing vehicle must not be lighter
than the vehicle being towed; otherwise,
it will not be possible to control the vehicle
response.Seite 220MobilityBreakdown assistance220
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▷Avoid lateral loading of the tow fitting, e.g.,
do not lift the vehicle by the tow fitting.
Otherwise, damage to the tow fitting and the
vehicle can occur.◀
Screw thread
Press on the mark on the edge of the cover to
push it out.
Tow-starting
Automatic transmission
Do not tow-start the vehicle.
Due to the automatic transmission, the engine
cannot be started by tow-starting.
Have the cause of the starting difficulties rem‐
edied.
Manual transmission
If possible, do not tow-start the vehicle but
start the engine by jump-starting, refer to
page 218. If the vehicle is equipped with a cat‐
alytic converter, only tow-start while the en‐
gine is cold.
1.Switch on the hazard warning system and
comply with local regulations.2.Ignition, refer to page 63, on.3.Engage third gear.4.Have the vehicle tow-started with the
clutch pedal pressed and slowly release
the pedal. After the engine starts, immedi‐
ately press on the clutch pedal again.5.Stop at a suitable location, remove the tow
bar or rope, and switch off the hazard
warning system.6.Have the vehicle checked.Seite 222MobilityBreakdown assistance222
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CareVehicle equipmentAll standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equip‐
ment is also described that is not available in a
vehicle, e. g., because of the selected optional
equipment or country variant. This also applies
for safety-related functions and systems.
Car washes Hints Steam jets or high-pressure washers
When using steam jets or high-pressure
washers, hold them a sufficient distance away and use a maximum temperature of
140 ℉/60 ℃.
If the vehicle has a glass sunroof, ensure that a distance of at least 31.5 inches/80 cm is main‐
tained. Holding them too close or using exces‐
sively high pressures or temperatures can
cause damage or preliminary damage that may
then lead to long-term damage.
Follow the user's manual for the high-pressure
washer.◀
Cleaning sensors/cameras with high-
pressure washers
When using high-pressure washers, do not
spray the exterior sensors and cameras, e.g., Park Distance Control, for extended periods of
time and only from a distance of at least
12 in/30 cm.◀▷Regularly remove foreign items such as
leaves in the area below the windshield
when the hood is raised.▷Wash your vehicle frequently, particularly
in winter.Intense soiling and road salt can damage
the vehicle.
Automatic car washes
Hints
▷Give preference to cloth car washes or
those that use soft brushes in order to
avoid paint damage.▷Make sure that the wheels and tires are not
damaged by the transport mechanisms.▷Fold in the exterior mirrors; otherwise, they
may be damaged, depending on the width
of the vehicle.▷Deactivate the rain sensor, refer to
page 69, to avoid unintentional wiper acti‐
vation.▷In some cases, an unintentional alarm can
be triggered by the interior motion sensor
of the alarm system. Follow the instruc‐
tions on avoiding an unintentional alarm,
refer to page 45.
Guide rails in car washes
Avoid car washes with guide rails higher
than 4 in/10 cm; otherwise, the vehicle body
could be damaged.◀
Before driving into a car wash In order to ensure that the vehicle can roll in a
car wash, take the following steps:
Manual transmission:
1.Drive into the car wash.2.Shift to neutral.3.Switch the engine off.4.Switch on the ignition.
Automatic transmission:
1.Drive into the car wash.Seite 223CareMobility223
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328d xDriveApproved rear axle loadlbs/kg2,525/1,145Approved roof load capacitylbs/kg165/75Cargo area capacitycu ft/l16.9/480
Capacities
US gal/litersNotesFuel tankGasoline: 15.8/60
Diesel: 15/57Fuel quality, refer to
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