With Range Extender: fuel
gauge
The fill level bars indicate the available fuel
supply of the Range Extender when operating
readiness and drive readiness are switched on.
Additional range of the Range Extender on top
of pure electric range. If the Range Extender is
activated, the color of the fill level bar indicator
switches from gray to white.
Vehicle tilt position may cause the display to
vary.
Hints on refueling, refer to page 169.
Coolant temperature If the coolant along with the engine becomes
too hot, a Check Control message is displayed.
Check the coolant level, refer to page 186.
Odometer and trip odometer
Display▷Odometer, arrow 1, Scope of the on-board
computer, refer to page 86.▷Trip odometer, arrow 2.
Show/reset kilometers: TRIP
Press the knob.
▷With operating readiness turned off, the
time, the external temperature and the od‐
ometer are displayed.▷When operating readiness is switched on,
the trip odometer is reset.
External temperature
If the indicator drops to +37 ℉/+3 ℃ or lower, a
signal sounds.
A Check Control message is displayed.
There is an increased risk of ice on roads.
Seite 82ControlsDisplays82
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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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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.
Seite 187CoolantMobility187
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Bulb replacement, taillights 193
Bulbs and lamps 190
Button, RES 113
Button, Start/Stop 64
Bypassing, refer to Jump- starting 197
C
California Proposition 65 Warning 8
Camera-based Cruise Con‐ trol 110
Camera lenses, care 203
Camera, rearview cam‐ era 121
Car battery 194
Car care products 201
Care, displays 203
Care, vehicle 201
Cargo 152
Cargo area 141
Cargo area, enlarging 141
Cargo area, storage compart‐ ments 145
Cargo cover 141
Cargo, securing 153
Cargo straps, securing cargo 153
Car key, refer to Remote con‐ trol 38
Carpet, care 203
Car wash 200
Catalytic converter, refer to Hot exhaust system 149
CBS Condition Based Serv‐ ice 188
Center armrest 143
Center console 16
Central locking system 44
Central screen, refer to Con‐ trol Display 18
Changes, technical, refer to Safety 7
Changing wheels 194 Changing wheels/tires 176
Charging battery, see Vehicle charging 160
Charging, refer to Charging vehicle 160
Charging, refer to Vehicle charging 160
Charging screen 76
Charging state indicator, high-voltage battery 77
Charging status, see display of the charging status 164
Charging vehicle 160
Charging vehicle, refer to Ve‐ hicle charging 160
Chassis number, see vehicle identification number 10
Check Control 78
Check engine oil 184
Check oil level 184
Children, seating position 60
Children, transporting safely 60
Child restraint fixing sys‐ tem 60
Child restraint fixing system LATCH 61
Child restraint fixing systems, mounting 60
Child seat, mounting 60
Child seats 60
Chrome parts, care 202
Cigarette lighter 139
Cleaning displays 203
Climate control 128, 130
Clock 83
Closing/opening via door lock 43
Closing/opening with remote control 41
Clothes hooks 145
Coasting 69
Combination reel, refer to Turn signals 71
Combination switch, refer to Wiper system 72 Comfort Access 46
COMFORT program, Dy‐ namic Driving Control 108
Compartments in the doors 145
Compass 137
Compressor 178
Computer, refer to On-board computer 86
Condensation on win‐ dows 129, 132
Condensation under the vehi‐ cle 151
Condition Based Service CBS 188
Confirmation signal 48
ConnectedDrive 6
ConnectedDrive Services 6
Connecting electrical devi‐ ces 139
Contact with water, high-volt‐ age system 34
Control Display 18
Control Display, settings 88
Controller 18
Control systems, driving sta‐ bility 107
Convenient opening with the remote control 41
Coolant 186
Coolant temperature 82
Cooling function 129, 131
Cooling, maximum 132
Cooling system 186
Corrosion on brake discs 151
Cosmetic mirror 139
Courtesy lamps during un‐ locking 41
Courtesy lamps with the vehi‐ cle locked 42
Cruise control 116
Cruise control, active with Stop & Go 110
Cruise control, refer to Cam‐ era-based Cruise Con‐
trol 110 Seite 211Everything from A to ZReference211
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