
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
The coolant reservoir for 6-cylinder and
diesel engines is located on the opposite
side of the engine compartment.Seite 204MobilityEngine compartment204
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Battery replacementUse approved vehicle batteries only
Only use vehicle batteries that have been
approved for your vehicle by the manufacturer;
otherwise, the vehicle could be damaged and
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
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  225, 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.▷Glass sunroof and sliding visor: initialize
the system, refer to page  48.
Disposing of old batteries
Have old batteries disposed of by your
service center or bring them to a recy‐
cling center.
Maintain the battery in an upright position for
transport and storage. Secure the battery so
that it does not tip over during transport.
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.
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In the engine compartment1.Use the onboard vehicle tool kit to loosen
the three cover screws, arrow 1.2.Pull up the holder, arrow 2.3.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.
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Engine, automatic Start/Stopfunction  66 
Engine, automatic switch- off  66 
Engine compartment  204 
Engine compartment, work‐ ing in  205 
Engine coolant  209 
Engine idling when driving, coasting  176 
Engine oil  206 
Engine oil, adding  207 
Engine oil additives  208 
Engine oil change  208 
Engine oil filler neck  207 
Engine oil temperature  81 
Engine oil types, alterna‐ tive  208 
Engine oil types, ap‐ proved  208 
Engine start during malfunc‐ tion  35 
Engine start, jump-start‐ ing  224  
Engine start, refer to Starting the engine  65 
Engine stop  66 
Engine temperature  81 
Entering a car wash  229 
Equipment, interior  152 
Error displays, see Check Control  78 
ESP Electronic Stability Pro‐ gram, refer to DSC  119 
Exchanging wheels/tires  197 
Exhaust system  167 
Exterior mirror, automatic dimming feature  58 
Exterior mirrors  57 
External start  224 
External temperature dis‐ play  82 
External temperature warn‐ ing  82 
Eyes for securing cargo  170 F
Failure message, see Check Control  78 
False alarm, refer to Uninten‐ tional alarm  45 
Fan, refer to Air flow  146, 149  
Filler neck for engine oil  207 
Fine wood, care  231 
First aid kit  224 
Fitting for towing, see Tow fit‐ ting  227 
Flat tire, changing wheels  220 
Flat Tire Monitor FTM  104 
Flat tire, Tire Pressure Moni‐ tor TPM  100 
Flat tire, warning lamp  101, 104  
Flooding  167 
Floor carpet, care  232 
Floor mats, care  232 
Fogged up windows  146 
Fold down the rear seat back‐ rest, see Though-loading
system  158 
Fold-out position, wiper  71 
Foot brake  167 
Front airbags  97 
Front-end collision warning with braking function  109 
Front-end collision warning with City Braking func‐
tion  107 
Front fog lights  95 
Front fog lights, front, bulb re‐ placement  217 
Front lights  213 
front-seat passenger airbags, automatic deactivation  99 
Front-seat passenger airbags, indicator lamp  99 
FTM Flat Tire Monitor  104 
Fuel  184 
Fuel consumption, current  83 Fuel consumption, refer to
Average fuel consump‐
tion  87 
Fuel filler flap  182 
Fuel gauge  81 
Fuel lid  182 
Fuel quality  184 
Fuel recommendation  184 
Fuel, tank capacity  241 
Fuse  221 
G Garage door opener, refer to Universal Integrated Remote
Control  152 
Gasoline  184 
Gear change, Steptronic transmission  73 
Gear shift indicator  84 
General driving notes  166 
Glare shield  156 
Glass sunroof, powered  47 
Glove compartment  160 
Gross vehicle weight, ap‐ proved  236 
H Handbrake, refer to parking brake  68 
Hand-held transmitter, alter‐ nating code  153 
Hazard warning flashers  223 
Head airbags  97 
Headlight control, auto‐ matic  93 
Headlight courtesy delay fea‐ ture  93 
Headlight flasher  69 
Headlight glass  213 
Headlights  213 
Headlights, care  230 
Headlight washer system  69 
Head restraints  50 
Head restraints, front  54 Seite 245Everything from A to ZReference245
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Opening and closing, withoutremote control  39 
Opening and closing, with re‐ mote control  37 
Opening the trunk lid with no- touch activation  42 
Operating concept, iDrive  18 
Optional equipment, standard equipment  6 
Outside air, refer to Auto‐ matic recirculated-air con‐
trol  149  
Overheating of engine, refer to Coolant temperature  82 
P Paint, vehicle  230 
Parallel parking assistant  140 
Park Distance Control PDC  132 
Parked-car ventilation  151 
Parked vehicle, condensa‐ tion  168 
Parking aid, refer to PDC  132 
Parking assistant  140 
Parking brake  68 
Parking lights  92 
Particulate filter  167 
Parts and accessories  7 
Passenger side mirror, tilting downward  58 
Pathway lines, rearview cam‐ era  136  
PDC Park Distance Con‐ trol  132  
Pedestrian warning with city braking function  112 
Personal Profile  35 
Personal Profile, exporting profiles  36 
Personal Profile, importing profiles  37 
Pinch protection system, glass sunroof  48 Pinch protection system, win‐
dows  46 
Plastic, care  231 
Power failure  221 
Power sunroof, glass  47 
Power windows  46 
Pressure, tire air pres‐ sure  189 
Pressure warning FTM, tires  104 
Profile, refer to Personal Pro‐ file  35 
Programmable memory but‐ tons, iDrive  24 
Protective function, glass sunroof  48 
Protective function, win‐ dows  46 
Push-and-turn switch, refer to Controller  18, 19  
R Radiator fluid  209 
Radio-operated key, refer to Remote control  34 
Radio ready state  64 
Radio, see user's manual for Navigation, Entertainment
and Communication 
Rain sensor  70 
Rear lights  220 
Rear socket  157 
Rear turn signal, bulb replace‐ ment  218 
Rearview camera  135 
Rearview mirror  57 
Rear window de‐ froster  146, 149  
Recirculated-air filter  150 
Recirculated-air mode  146, 149  
Recommended fuel grade  184 
Recommended tire brands  198 Refueling  182 
Remaining range  82 
Remote control/key  34 
Remote control, malfunc‐ tion  38 
Remote control, univer‐ sal  152  
Replacement fuse  221 
Replacing parts  212 
Replacing wheels/tires  197 
Reporting safety defects  9 
RES button  127 
RES button, see Active Cruise Control, ACC  124 
RES button, see Cruise con‐ trol  130  
Reserve warning, refer to Range  82 
Reset, Tire Pressure Monitor TPM  101 
Retaining straps, securing cargo  170 
Retreaded tires  198 
Roadside parking lights  93 
Roller sunblinds  47 
RON recommended fuel grade  184 
Roofliner  17 
Roof load lidacity  236 
Roof-mounted luggage rack  171 
Rope for tow-starting/ towing  227 
RSC Run Flat System Com‐ ponent, refer to Run-flat
tires  199 
Rubber components, care  231 
Run-flat tires  199 
S Safe braking  167 
Safety  7 Seite 248ReferenceEverything from A to Z248
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Safety belt reminder for driv‐er's seat and front passen‐
ger seat  54 
Safety belts  53 
Safety belts, care  232 
Safety switch, windows  47 
Safety systems, airbags  97 
Saving fuel  172 
Screen, refer to Control Dis‐ play  18 
Screwdriver, see Onboard ve‐ hicle tool kit  212 
Screw thread, see screw thread for tow fitting, screw
thread for tow fitting  228 
Sealant  199 
Seat and mirror memory  56 
Seat belts, refer to Safety belts  53 
Seat heating, front  53 
Seat heating, rear  53 
Seating position for chil‐ dren  60 
Seats  50 
Selection list in instrument cluster  86 
Selector lever, Steptronic transmission  73 
Sensors, care  232 
Service and warranty  8 
Service requirements, Condi‐ tion Based Service
CBS  210 
Service requirements, dis‐ play  83 
Services, ConnectedDrive 
Servotronic  123 
SET button, see Active Cruise Control, ACC  124 
SET button, see Cruise con‐ trol  130  
Settings, locking/unlock‐ ing  43 
Settings on Control Dis‐ play  89 Settings, storing for seat, mir‐
ror  56 
Shift paddles on the steering wheel  74 
Side airbags  97 
Side View  137 
Signaling, horn  14 
Signals when unlocking  44 
Sitting safely  50 
Size  236 
Slide/tilt glass roof  47 
Smallest turning radius  236 
Snow chains  202 
Socket  156 
Socket, OBD Onboard Diag‐ nostics  211 
Soot particulate filter  167 
SOS button  223 
Spare fuse  221 
Specified engine oil types  208 
Speed, average  87 
Speed limit detection, on- board computer  88 
Speed limiter, display  85 
Speed Limit Information  85 
Speed warning  88 
Split screen  23 
SPORT+ - program, Dynamic Driving Control  122 
Sport displays, torque dis‐ play, performance dis‐
play  88 
SPORT program, Dynamic Driving Control  122 
Sport program, transmis‐ sion  74 
Sport steering, variable  121 
Stability control systems  119 
Start/stop, automatic func‐ tion  66 
Start/Stop button  64 
Start function during malfunc‐ tion  35 
Starting the engine  65 Status control display,
tires  101 
Status information, iDrive  23 
Status of Owner's Manual  7 
Steering assistance  123 
Steering wheel, adjusting  59 
Steering wheel heating  59 
Steptronic Sport transmis‐ sion, refer to Steptronic
transmission  72 
Steptronic transmission  72 
Stopping the engine  66 
Storage compartment in the rear  162 
Storage compartments  160 
Storage compartments, loca‐ tions  160 
Storage, tires  199 
Storing the vehicle  232 
Suitable engine oils  208 
Summer tires, tread  197 
Sun visor  156 
Supplementary text mes‐ sage  81 
Surround View  135 
Switch for Dynamic Driv‐ ing  121  
Switch-on times, parked-car ventilation  151 
Switch, refer to Cockpit  14 
Symbols  6 
Symbols in the status field  23 
T Tachometer  81 
Tail lights  218 
Technical changes, refer to Safety  7 
Technical data  236 
Telephone, see user's manual for Navigation, Entertain‐
ment and Communication 
Temperature, automatic cli‐ mate control  146, 148  Seite 249Everything from A to ZReference249
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