
Hood
Information WARNING
Improperly executed work in the engine
compartment can damage components and
lead to a safety risk. There is risk of accidents
or risk of property damage.◀
WARNING
The engine compartment accommo‐
dates moving components. Certain compo‐
nents can move in the engine compartment
with the vehicle switched off, e.g. the cooler
fan. There is risk of injuries. Do not reach into
the area of moving parts. Keep articles of
clothing and hair away from moving parts.◀
CAUTION
Folded-away wipers can be jammed
when the hood is opened. There is risk of
property damage. Make sure that the wipers
with the wiper blades mounted are folded
down onto the windshield before opening the
hood.◀
WARNING
There are protruding parts, e.g. lock
hook, on the inside of the hood. There is risk of
injuries. If the hood is open, pay attention to
protruding parts and keep these areas clear.◀
WARNING
An incorrectly locked hood can open
while driving and restrict visibility. There is risk
of an accident. Stop immediately and correctly
close the hood.◀
WARNING
Body parts can be jammed on opening
and closing the hood. There is risk of injuries.
Make sure that the area of movement of the
hood is clear during opening and closing.◀Opening the hood1.Pull the lever.2.Press the release handle and open the
hood.3.Be careful of protruding parts on the hood.Seite 220MobilityEngine compartment220
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Different messages appear on the display de‐
pending on the engine oil level. Pay attention
to these messages.
If the engine oil level is too low, within the next
125 miles/200 km Add engine oil, refer to
page 223.
Detailed measurement
The concept In the detailed measurement the engine oil
level is checked and displayed via a scale.
Gasoline engine:
If the engine oil level reaches the minimum
level, a check control message is displayed.
During the measurement, the idle speed is in‐
creased somewhat.
Requirements▷Vehicle is on level road.▷Steptronic transmission: selector lever in
selector lever position N or P and accelera‐
tor pedal not depressed.▷Engine is running and is at operating tem‐
perature.
Performing a detailed measurement
In order to perform a detailed measurement of
the engine oil level:
1."Vehicle info"2."Vehicle status"3. "Measure engine oil level"4."Start measurement"
The engine oil level is checked and displayed
via a scale.
Time: approx. 1 minute.
Adding engine oil
Information CAUTION
A too low engine oil level causes engine
damage. There is risk of property damage.
Add engine oil within the next
125 miles/200 km.◀
CAUTION
Too much engine oil can damage the en‐
gine or the catalytic converter. There is risk of
property damage. Do not add too much engine
oil. Have too much engine oil siphoned off by a
dealer’s service center or another qualified
service center or repair shop.◀
WARNING
Operating materials, e.g. oils, greases,
coolants, fuels, can contain harmful ingredi‐
ents. There is risk of injuries or danger to life.
Observe the instructions on the containers.
Avoid the contact of articles of clothing, skin or
eyes with operating materials. Do not refill op‐
erating materials into different bottles. Store
operating materials out of reach of children.◀
General information
Only add engine oil when the message is dis‐
played in the instrument cluster. The quantity
to be added is indicated in the message dis‐
played in the instrument cluster.
Switch off the ignition and safely park the vehi‐
cle before engine oil is added.
Overview
The oil filler neck is located in the engine com‐
partment, refer to page 219.
Opening the oil filler neck1.Opening the hood, refer to page 220Seite 223Engine oilMobility223
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CoolantVehicle 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.
Information WARNING
With the engine hot and the cooling sys‐
tem open, coolant can escape and lead to
burns. There is risk of injuries. Only open the
cooling system with the engine cooled down.◀
WARNING
Additives are harmful and incorrect addi‐
tives can damage the engine. There is risk of
injuries and risk of property damage. Avoid the
contact of articles of clothing, skin or eyes with
additives. Do not swallow any additives. Use
suitable additives only.◀
Coolant consists of water and additives.
Not all commercially available additives are
suitable for the vehicle. Information about suit‐
able additives is available from a dealer’s serv‐
ice center or another qualified service center or
repair shop.
Coolant level
General information
If there is no Min. and Max. mark in the filler
neck of the coolant reservoir, have the coolant
level checked if needed by your dealer’s serv‐ice center or another qualified service center or
repair shop and add coolant as needed.
Overview
Depending on the engine installation, the cool‐
ant reservoir is located on the right side or the
left side of the engine compartment.
Checking1.Let the engine cool.2.Turn the lid of the coolant reservoir slightly
counterclockwise to allow any excess
pressure to dissipate, then open it.3.Open the coolant reservoir lid.4.The coolant level is correct if it lies be‐
tween the minimum and maximum marks
in the filler neck.Seite 226MobilityCoolant226
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Socket for OBD Onboard
Diagnosis
Information CAUTION
Improper use of the socket for Onboard
Diagnosis can lead to vehicle malfunctions.
There is risk of property damage. The manu‐
facturer of your vehicle strongly recommends
access to the socket for Onboard Diagnosis be
limited to a dealer's service center, another
qualified service center or repair shop or other
authorized persons.◀
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 229MaintenanceMobility229
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3.Fold open the holder.4.Slide wiper blade out of the wiper arm.5.Insert the new wiper blade and press it on
until it you hear it snap into the holder.6.Fold down the wipers.
Lamp and bulb replacement
General information
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
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.
Information
Lights and bulbs WARNING
Bulbs can get hot during operation. Con‐
tact with the bulbs can cause burns. There is
risk of injuries. Only change bulbs after they
have cooled off.◀
WARNING
Work on switched-on lighting systems
can cause short circuits. There is risk of inju‐
ries or risk of property damage. When working
on the lighting system, switch off the lamps in
question. If necessary, heed the bulb manufac‐
turer's instructions.◀
CAUTION
Contaminated bulbs reduce their service
life. There is 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.◀
Xenon headlights 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.◀
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.Seite 231Replacing componentsMobility231
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WARNING
Too intensive brightness can irritate or
damage the retina of the eye. There is risk of
injuries. Do not look directly into the headlights
or other light sources for an extended period of
time. 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
Because of the long service life of these bulbs,
the likelihood of failure is very low. Switching
the lights on and off frequently shortens their
service life.
If a bulb fails, turn on the front fog lights and
continue the trip with great care. Comply with
local regulations.
DANGER
There can be high voltage in the lighting
system. There is danger to life. The manufac‐
turer of your vehicle recommends that thework 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.◀
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.
Contact a dealer’s service center or another
qualified service center or repair shop in the
event of a malfunction.
LED headlights With LED headlights, all front lights and side
indicators are designed with LED technology.
If an LED fails, switch on the front fog lights and continue the trip with great care. Comply
with local regulations.
Contact a dealer’s service center or another
qualified service center or repair shop in the
event of a malfunction.
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LED front fog lights
These front fog lights are made using LED
technology. Contact a dealer’s service center
or another qualified service center or repair
shop in the event of a malfunction.
Tail lights, bulb replacement
LED tail lights
These tail lights are made using LED technol‐
ogy. Contact a dealer’s service center or an‐
other qualified service center or repair shop in
the event of a malfunction.
Changing wheels
Information When using run-flat tires or 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 dealer’s service center
or another qualified service center or repair
shop.
Jacking points for the vehicle jack
The jacking points for the vehicle jack are lo‐
cated at the positions shown.
Emergency wheel
Safety measures▷Park the vehicle as far away as possible
from passing traffic and on solid ground.
Switch on the hazard warning system.▷Set the parking brake and engage lever in
position P P.▷Have all vehicle occupants get out of the
vehicle and ensure that they remain out‐
side the immediate area in a safe place,
such as behind a guardrail.▷If necessary, set up a warning triangle or
portable hazard warning lamp at an appro‐
priate distance.▷Perform wheel change only on a flat, solid
and slip-resistant surface. On soft or slip‐
pery ground, e.g., snow, ice, tiles, etc., the
vehicle or vehicle jack can slip away to the
side.▷Do not place wood blocks or similar items
under the vehicle jack; otherwise, it cannot
reach its carrying capacity because of the
restricted height.▷If the vehicle is raised, do not lie under the
vehicle and do not start the engine; other‐
wise, a fatal hazard exists.
Information
WARNING
The vehicle jack is optimized for lifting
the vehicle and for the jacking points on the
vehicle only. There is risk of injuries. Do not lift
any other vehicle or cargo using the vehicle
jack.◀
Overview
The emergency wheel and the tools are lo‐ cated in the trunk under the cargo floor panel.
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Reset the Tire Pressure Monitor.5.Check to make sure the lug bolts are tight
with a calibrated torque wrench.6.Replace the damaged tires as soon as pos‐
sible.
Driving with emergency wheel
WARNING
The emergency wheel has particular di‐
mensions. When driving with an emergency
wheel, changed driving properties may occur
at higher speeds, e.g. reduced lane stability
when braking, longer braking distance and
changed self-steering properties in the limit
area. There is risk of an accident. Drive moder‐
ately and do not exceed a speed of
50 mph/80 km/h.◀
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 CAUTION
Vehicle batteries that are not compatible
can damage vehicle systems and impair vehi‐
cle functions.There is risk of property damage.
Information on the 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
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 prolonged pe‐
riods, longer than a month.
Information
CAUTION
Battery chargers for the vehicle battery
can work with high voltages and currents,
which means that the 12V on-board network
can be overloaded or damaged. There is risk of
property damage. Only connect battery charg‐
ers for the vehicle battery to the starting aid
terminals in the engine compartment.◀
Starting aid terminals
In the vehicle, only charge the battery via the
starting aid terminals, refer to page 240, in the
engine compartment with the engine off.
Power failure
After a temporary power loss, some equipment
needs to be newly initialized or individual set‐
tings updated, e. g.:
▷Seat, mirror, and steering wheel memory:
store the positions again.▷Time: update.▷Date: update.▷Glass sunroof: initialize the system, refer to
page 51.Seite 236MobilityReplacing components236
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