
Engine compartmentVehicle 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 tothe 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.
Important features in the engine compartment
1Jump-starting, negative battery terminal2Vehicle identification number3Washer fluid reservoir4Jump-starting, positive battery terminal5Engine compartment fuse box6Oil filler neck7Coolant reservoir for charge air cooling8Coolant reservoir for engine coolingHood
Hints Working in the engine compartment
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.◀Seite 181Engine compartmentMobility181
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systems or functions may not be fully availa‐
ble.◀
After a battery replacement, have the battery
registered on the vehicle by the service center
to ensure that all comfort features are fully
available and that any Check Control mes‐
sages of these comfort features 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.
Hints
Use approved chargers only
Only use chargers that have been ap‐
proved by the manufacturer of your vehicle, otherwise your vehicle may be damaged. Do
not exceed the maximum charge voltage of
14.4 Volt.◀
Do not connect charging devices to the
12 volt socket in the vehicle
Do not connect battery chargers to the fac‐
tory-installed 12 volt sockets in the vehicle as
this may damage the vehicle battery due to an
increased power consumption.◀
Starting aid terminals
In the vehicle, only charge the battery via the
starting aid terminals, refer to page  200, 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 and mirror memory: store the posi‐
tions again.▷Time: update.▷Date: update.
Disposing of old batteries
Have old batteries disposed of by your
service center or bring them to a recy‐
cling center.
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 trunk.
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 196MobilityReplacing components196
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3.Remove the cover from one side, arrow 3.4.Press the four fasteners and remove the
cover.
Attaching the covers
1.When attaching the cover, make sure that
all four fasteners are engaged.2.Attach the cover under the rubber lip and
then thread it between the bars.3.Press down on the holder and tighten the
three screws.
In the trunk
Fold up the cargo floor panel.
Information on the fuse types and locations is
found on a separate sheet.
Seite 197Replacing componentsMobility197
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External temperature warn‐ing  82 
Eyes for securing cargo  163 
F
Failure message, see Check Control  78 
False alarm, refer to Uninten‐ tional alarm  45 
Fan, refer to Air flow  138 
Filler neck for engine oil  184 
Fine wood, care  206 
First aid kit  199 
Fitting for towing, see Tow fit‐ ting  202 
Flat tire, changing wheels  195 
Flat tire, Tire Pressure Moni‐ tor TPM  103 
Flat tire, warning lamp  104 
Flooding  159 
Floor carpet, care  207 
Floor mats, care  207 
Fold down the rear seat back‐ rest, see Though-loading
system  149 
Fold-out position, wiper  70 
Foot brake  159 
Front airbags  99 
Front-end collision warning with City Braking func‐
tion  107 
Front lights  191 
front-seat passenger airbags, automatic deactivation  101 
Front-seat passenger airbags, indicator lamp  101 
Fuel  170 
Fuel consumption, current  83 
Fuel consumption, refer to Average fuel consump‐
tion  88 
Fuel filler flap  168 
Fuel gauge  81 
Fuel lid  168 Fuel quality  170 
Fuel recommendation  170 
Fuel, tank capacity  211 
Fuse  196 
G
Garage door opener, refer to Universal Integrated Remote
Control  141 
Gasoline  170 
Gear change  73 
Gear shift indicator  85 
General driving notes  159 
Glare shield  145 
Glove compartment  151 
Gross vehicle weight, ap‐ proved  210 
Ground clearance  160 
H
Handbrake, refer to parking brake  67 
Hand-held transmitter, alter‐ nating code  142 
Hardtop  46 
Hardtop, rollover protection system  102 
Hardtop, trunk partition  49 
Hazard warning flashers  198 
Headlight control, auto‐ matic  95 
Headlight courtesy delay fea‐ ture  94 
Headlight flasher  68 
Headlight glass  191 
Headlights  191 
Headlights, care  205 
Headlight washer system  68 
Head restraints  52 
Head restraints, front  56 
Head-up Display  91 
Head-up Display, care  207 
Head-up display, M view  92 Head-up display, standard
view  91 
Heating, neck  54 
Heavy cargo, stowing  163 
Height, vehicle  210 
High-beam Assistant  96 
High beams  68 
High beams/low beams, refer to High-beam Assistant  96 
High-performance en‐ gine  156 
Hills  160 
Hill start assistant, refer to Drive-off assistant  120 
Hints  6 
Holder for beverages  153 
Homepage  6 
Hood  181 
Horn  14 
Hot exhaust system  159 
HUD Head-up Display  91 
Hydroplaning  159 
I
Ice warning, see External temperature warning  82 
Icy roads, see External tem‐ perature warning  82 
Identification marks, tires  173 
Identification number, see ve‐ hicle identification num‐
ber  9 
iDrive  18 
Ignition key, refer to Remote control  34 
Ignition off  63 
Ignition on  63 
Indication of a flat tire  104 
Indicator and alarm lamps, see Check Control  78 
Indicator lamp, see Check Control  78 
Individual air distribution  138 
Individual settings, refer to M Drive  116 Seite 215Everything from A to ZReference215
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Protective function, win‐dows  46 
Push-and-turn switch, refer to Controller  18, 19  
R Radiator fluid  186 
Radio-operated key, refer to Remote control  34 
Radio ready state  63 
Radio, see user's manual for Navigation, Entertainment
and Communication 
Rain sensor  69 
Rear lights  195 
Rear socket  146 
Rear turn signal, bulb replace‐ ment  193 
Rearview camera  126 
Rearview mirror  57 
Rear window defroster  138 
Recirculated-air filter  139 
Recirculated-air mode  138 
Recommended fuel grade  170 
Recommended tire brands  176 
Refueling  168 
Remaining range  83 
Remote control/key  34 
Remote control, malfunc‐ tion  39 
Remote control, univer‐ sal  141  
Replacement fuse  196 
Replacing parts  190 
Replacing wheels/tires  176 
Reporting safety defects  9 
RES button, see Cruise con‐ trol  122  
Reserve warning, refer to Range  83 
Reset, Tire Pressure Monitor TPM  104 Retaining straps, securing
cargo  163 
Retreaded tires  176 
Roadside parking lights  95 
Rollover protection sys‐ tem  102 
RON recommended fuel grade  170 
Roofliner  17 
Roof load capacity  210 
Rope for tow-starting/ towing  202 
Rubber components, care  206 
S
Safe braking  159 
Safety  7 
Safety belt reminder for driv‐ er's seat and front passen‐
ger seat  56 
Safety belts  55 
Safety belts, care  207 
Safety systems, airbags  99 
Saving fuel  164 
Screen, refer to Control Dis‐ play  18 
Screwdriver, see Onboard ve‐ hicle tool kit  190 
Screw thread, see screw thread for tow fitting, screw
thread for tow fitting  203 
Sealant  177 
Seat and mirror memory  56 
Seat belts, refer to Safety belts  55 
Seat heating, front  54 
Seating position for chil‐ dren  60 
Seats  52 
Selection list in instrument cluster  87 
Selector lever  72 
Selector lever position  72 
Sensors, care  207 Sequential mode  72 
Service and warranty  8 
Service requirements, Condi‐ tion Based Service
CBS  188 
Service requirements, dis‐ play  84 
Services, ConnectedDrive 
Servotronic  120 
SET button, see Cruise con‐ trol  122  
Settings, locking/unlock‐ ing  43 
Settings, M Drive  116 
Settings on Control Dis‐ play  90 
Settings, storing for seat, mir‐ ror  56 
Shift point indicator  93 
Side airbags  99 
Side View  129 
Signaling, horn  14 
Signals when unlocking  43 
Sitting safely  52 
Size  210 
Smallest turning radius  210 
Snow chains  180 
Socket  145 
Socket, OBD Onboard Diag‐ nostics  189 
SOS button  198 
Spare fuse  196 
Specified engine oil types  185 
Speed, average  88 
Speed limit detection, on- board computer  89 
Speed limiter, display  86 
Speed Limit Information  86 
Speed warning  89 
Split screen  23 
Sport displays, torque dis‐ play, performance dis‐
play  89 
Stability control systems  116 Seite 218ReferenceEverything from A to Z218
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