Coolant temperatureIf 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.▷Trip odometer, arrow 2.
Show/reset kilometers Press the knob.
▷When the ignition is
switched off, the time, the
external temperature and
the odometer are displayed.▷When the ignition 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.
When the digital tachometer is activated, the
external temperature can be displayed in the
computer.
Ice on roads
Even at temperatures above
+37 ℉/+3 ℃, roads might be icy.
Therefore, drive carefully on bridges and
shaded roads, e.g., to avoid the increased risk
of an accident.◀
Time The time is displayed in the in‐
strument cluster.
When the digital tachometer is
activated, the time can be dis‐
played in the computer.
Setting the time and time format, refer to
page  90.
Date The date is displayed in the
computer.
Setting the date and date for‐
mat, refer to page  90.
Digital tachometer
Display The current speed is displayed
in the instrument cluster.
Activate display1."Settings"2."Instrument cluster"3."Digital speedometer"
Adjusting the unit
1."Settings"2."Language/Units"3."Dig. speedo:"4.Select the desired unit.Seite 82ControlsDisplays82
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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.
General information The vehicle has two coolant reservoirs that are
located in the engine compartment.
To ensure the operational reliability of the vehi‐
cle, always check the coolant level of both
coolant reservoirs.
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.
Not all commercially available additives are
suitable for the vehicle. Information about the
suitable additives are available from the service
center.Coolant level
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 186MobilityCoolant186
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Adding1.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.If the coolant is low, slowly add coolant up
to the specified level; do not overfill.4.Close cap.5.Have the cause of the coolant loss elimi‐
nated 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 190 
Bulb replacement, front  191 
Bulb replacement, LED head‐ lights  192 
Bulb replacement, rear  193 
Bulb replacement, xenon headlights  191 
Bulbs and lights  190 
Button, Start/Stop  63 
Bypassing, refer to Jump- starting  199 
C
California Proposition 65 Warning  7 
Camera lenses, care  207 
Camera, rearview cam‐ era  127  
Camera, Side View  129 
Camera, Top View  131 
Can holder, refer to Cuphold‐ ers  153  
Car battery  195 
Carbon ceramic brake M  156 
Car care products  205 
Care, displays  207 
Care, vehicle  205 
Cargo  162 
Cargo area, enlarging  149 
Cargo area partition  49 
Cargo area, storage compart‐ ments  153 
Cargo, securing  163 
Cargo straps, securing cargo  163 
Car key, refer to Remote con‐ trol  34 
Carpet, care  207 
Car wash  204 
Catalytic converter, refer to Hot exhaust system  159 
CBS Condition Based Serv‐ ice  188  
CD/Multimedia, see user's manual for Navigation, En‐tertainment and Communi‐
cation 
Center armrest  152 
Center console  16 
Central locking system  40 
Central screen, refer to Con‐ trol Display  18 
Ceramic brake  156 
Changes, technical, refer to Safety  7 
Changing parts  190 
Changing wheels  195 
Changing wheels/tires  176 
Chassis, electronic  119 
Chassis number, see vehicle identification number  9 
Check Control  78 
Checking the engine oil level electronically  183 
Checking the oil level elec‐ tronically  183 
Children, seating position  60 
Children, transporting safely  60 
Child restraint fixing sys‐ tem  60 
Child restraint fixing system LATCH  62 
Child restraint fixing systems, mounting  60 
Child seat, mounting  60 
Child seats  60 
Chrome parts, care  206 
Cigarette lighter  145 
Cleaning displays  207 
Climate control  136 
Clock  82 
Closing/opening via door lock  39 
Closing/opening with remote control  37 
Cockpit  14 
Combination reel, refer to Turn signals  68 
Combination switch, refer to Wiper system  68 Comfort Access  41 
Compartments in the doors  152 
Compass  143 
Compound brake  156 
Compressor  177 
Computer, refer to On-board computer  87 
Condensation on win‐ dows  138 
Condensation under the vehi‐ cle  160  
Condition Based Service CBS  188 
Confirmation signal  43 
ConnectedDrive, see user's manual for Navigation, En‐
tertainment and Communi‐
cation 
ConnectedDrive Services 
Connecting electrical devi‐ ces  145 
Control Display  18 
Control Display, settings  90 
Controller  18, 19  
Control systems, driving sta‐ bility  116 
Convenient closing with the remote control  38 
Convenient opening with the remote control  37 
Convertible, hardtop  46 
Convertible mode, automatic climate control  137 
Convertible program, auto‐ matic climate control  137 
Coolant  186 
Coolant temperature  82 
Cooling function  137 
Cooling, maximum  137 
Cooling system  186 
Cornering light  95 
Corrosion on brake discs  160 
Cosmetic mirror  145 
Courtesy lamps during un‐ locking  37 Seite 213Everything from A to ZReference213
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