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RefuelingVehicle features and options
This 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.
Hints Observe the fuel recommendation, refer to
page 172, prior to refueling.
A sufficient amount of fuel must be added to
operate the Range Extender. When the Range
Extender is activated, the current charging
state is maintained. The vehicle has a greater
range.
Do not refuel unless the engine is at a
standstill and the selector lever is in posi‐
tion P/N
Do not refuel unless the engine is at a standstill
and the selector lever is in position P/N, other‐
wise the buildup of pressure may cause the
fuel nozzle to shut off prematurely.◀
Tank vent
The concept The vehicle is equipped with a special fuel
tank. It is designed for special requirements
that arise in operation with the Range Ex‐
tender.General information
In the fuel tank, excess pressure can build up
due to gasoline vapors which are dissipated
before the tank lid is opened.
Overview
The button is located on the driver's footwell.
Tank venting1.Switch off drive readiness.2.
Press button to start the pressure
equalization.
The status of the tank venting is displayed
in the instrument cluster. In rare cases, the
tank venting can last several minutes.
If the tank venting has been completed, a
message is displayed in the instrument
cluster. The tank lid is released for open‐
ing.
3.Open the fuel filler flap.
If the fuel filler flap is not opened within 10
minutes after the fuel filler flap was re‐
leased, the fuel filler flap relocks. Press
button again.
Fuel lid
Opening
Before opening , vent the tank, refer to
page 169.
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1.Briefly press the rear edge of the fuel filler
flap.2.Turn the tank lid counterclockwise.3.Place the tank lid in the bracket attached to
the fuel filler flap.
Closing
1.Fit the lid and turn it clockwise until you
clearly hear a click.2.Close the fuel filler flap.
Do not pinch the retaining strap
Do not pinch the retaining strap attached
to the lid; otherwise, the lid cannot be closed
properly and fuel vapors can escape.◀
Manually unlocking fuel filler flap
In the event of an electrical malfunction, e.g.
The release is located in the trunk.1.Open hood, refer to page 183.2.Pull the green knob with the fuel pump
symbol. This releases the fuel filler flap.3.Open the fuel filler flap.4.Carefully open the fuel filler flap. Excess
pressure can build up in the fuel tank from
gasoline vapor.5.Fuel the vehicle as usual. This may be diffi‐
cult due to the residue pressure in the
tank, caused by frequent stopping of the
fuel pump nozzle, e.g.
Observe the following when
refueling
The fuel tank is full when the filler nozzle clicks
off the first time.
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Under the hoodWhat is important under the hood1Washer fluid reservoir2With Range Extender: filler flap emergency
unlocking3Coolant reservoir for climate control4Coolant reservoir for driveThe occasional use cable compartment in the
center is used for storage of the Level 1 charg‐
ing cable and the Level 2 charging cable.
Moisture can penetrate into the occasional use
cable compartment, e.g. in a car wash.
Hood Hints Working under the hood
Never attempt to perform any service or
repair operations on your vehicle without the
necessary professional technical training.If you are unfamiliar with the statutory guide‐
lines, have any work on the vehicle performed
only by a service center.
If work is not carried out properly, there is a
danger of subsequent damage and related
safety hazards.◀
Fold down wiper arm
Before opening the hood, ensure that the
wiper arms are against the windshield, or this
may result in damage.◀Seite 182MobilityUnder the hood182
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Opening hood
Unlocking hood1. Press button on the remote con‐
trol or in the driver's footwell, refer to
page 44.
Opening hood
1.Press the release handle and open the
hood.
Indicator/warning lights
When the hood is opened, a Check Control
message is displayed.
Closing the hood
From approx. 16 in/40 cm height allow to fall
and press again to lock the hook completely.
Make sure you hear the hood engage.
Hood open when driving
If you see any signs that the hood is not
completely closed while driving, pull over im‐
mediately and close it securely.◀
Danger of jamming
Make sure that the closing path of the
hood is clear; otherwise, injuries may result.◀Seite 183Under the hoodMobility183
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Engine oilVehicle features and options
This 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.
General information Engine oil consumption depends on the fre‐
quency of Range Extender use. Therefore,
regularly check the engine oil level after refuel‐
ing.
Checking the oil level NoteCheck the engine oil level with Range Extender
warmed up to operating temperature.
After switching off the Range Extender, wait
several minutes before checking the oil level
so that the engine oil can collect in the oil pan.
Checking1.Park the vehicle in horizontal position in a
safe place.2.Switch the engine off.3.Remove the cargo floor panel.4.Turn the lid counterclockwise and remove.5.After approx. 5, minutes, remove the dip
stick and wipe with a lint-free cloth, paper
towel or similar.6.Carefully insert the dipstick up to the stop
in the measuring tube, and pull it back out.
The engine oil level must be between the
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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.
Hints Danger of burns from hot engine
Do not open the cooling system while
the engine is hot; otherwise, esliding coolant
may cause burns.◀
Suitable additives
Only use suitable additives; otherwise,
engine damage may occur. The additives are
harmful to your health.◀
Coolant consists of water and additives.
The vehicle's cooling circuits are filled with dif‐
ferent types of coolant. Do not mix the differ‐
ent types of coolant.
Not all commercially available additives are
suitable for the vehicle. Information about the
suitable additives are available from the service
center.
Coolant reservoir
The vehicle has two coolant reservoirs that are
located under the hood.
To ensure the operational reliability of the vehi‐
cle, always check the coolant level of both
coolant reservoirs.
Open hood, refer to page 183.1Coolant reservoir for climate control2Coolant reservoir for drive
Coolant level
Coolant reservoir for climate control
Checking
1.Allow the drive to cool down.2.Turn the lid of the coolant reservoir slightly
counterclockwise to allow any excess
pressure to dissipate, then open it.3.Check the coolant level.
The coolant level is correct if it lies be‐
tween the minimum and maximum marks
in the reservoir.
Adding
1.Slowly add coolant up to the specified
level; do not overfill.Seite 186MobilityCoolant186
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2.Close cap.3.Have the cause of the coolant loss elimi‐
nated by the service center as soon as
possible.
Coolant reservoir for drive
Checking
1.Allow the drive to cool down.2.Check the coolant level.
The marks are on the side of the coolant
reservoir. The coolant level is correct if it
lies between the minimum and maximum
marks.
Adding
1.Turn the lid of the coolant reservoir slightly
counterclockwise to allow any excess
pressure to dissipate, then open it.2.Slowly add coolant up to the specified
level; do not overfill.3.Close cap.4.Have the cause of the coolant loss elimi‐
nated by the service center as soon as
possible.
Disposal
Comply with the relevant environmen‐
tal protection regulations when dispos‐
ing of coolant and coolant additives.
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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.
Wiper blade replacement Hints Do not fold down the wipers without
wiper blades
Do not fold down the wipers if wiper blades
have not been installed; this may damage the
windshield.◀
Front: Replacing the wiper blades1.To change the wiper blades, fold up, refer
to page 74, the wiper arms.2.Fold up the wipers.3.Position the wiper blade in a horizontal po‐
sition.4.Remove the wiper blade toward one side.5.Insert the new wiper blade in reverse order
of removal until it locks in place.6.Fold down the wipers.
Rear: replacing the wiper blades
1.Lift off the wiper fully and pull off the wiper
blade, arrow.2.Attach a new wiper blade. It must engage
audibly.3.Fold down the wipers.
Lamp and bulb replacement
Hints
Lights and bulbs
Lights and bulbs make an essential contribu‐
tion to vehicle safety.
The manufacturer of the vehicle recommends
that you entrust corresponding procedures to
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