
Driver assistance systemsVehicle 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.
Active Cruise Control with Stop & Go function, ACC
The concept
Use this system to select a desired speed that
the vehicle will maintain automatically on clear
roads.
To the extent possible, the system automati‐
cally adjusts the speed to a slower vehicle
ahead of you.
The distance that the vehicle maintains to the
vehicle ahead of you can be varied. For safety
reasons, it depends on the speed.
To maintain a certain distance, the system au‐
tomatically reduces the speed, applies the
brakes lightly, or accelerates again if the vehi‐
cle ahead begins moving faster.
If the vehicle ahead of you brakes to a halt, and
then proceeds to drive again within a brief pe‐
riod, the system is able to detect this within the
given system limits. Your own vehicle will
brake automatically and then accelerate again.
If the vehicle ahead of you drives away again
after a prolonged period, briefly press the ac‐
celerator pedal or press the appropriate button
to reactivate the system. The vehicle will auto‐
matically accelerate.As soon as the road is clear, the vehicle accel‐
erates to the desired speed.
Vehicles driving ahead are captured by a radar
sensor and a camera.
General information
Depending on the driving settings, the features
of the cruise control can change in certain
areas.
The desired speed is also maintained downhill,
but may not be maintained on uphill grades if
engine power is insufficient.
Due to the driving style that minimizes fuel
consumption in ECO PRO drive mode, the ve‐
hicle may drop below the set desired speed in
some situations, e.g. on uphill grades.
Information WARNING
The system does not relieve from the
personal responsibility to correctly assess the
traffic situation. Based on the limits of the sys‐
tem, it cannot independently react to all traffic
situations. There is risk of an accident. Adjust
the driving style to the traffic conditions. Watch
traffic closely and actively interfere in the re‐
spective situations.◀
WARNING
An unsecured vehicle can put itself into
motion and roll away. There is risk of an acci‐
dent. Before exiting, secure the vehicle against
rolling.
In order to ensure that the vehicle is secured
against rolling away, observe the following:▷Set the parking brake.▷On uphill grades or on a slope, turn the
front wheels in the direction of the curb.▷On uphill grades or on a slope, also secure
the vehicle, e.g. with a wheel chock.◀Seite 168ControlsDriver assistance systems168
Online Edition for Part no. 0140 2 964 330 - VI/15 

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.
Information CAUTION
With a range of less than 30 miles/50 km
it is possible that the engine will no longer have
sufficient fuel. Engine functions are no longer
ensured. There is risk of property damage. Re‐
fuel promptly.◀
Observe the fuel recommendation, refer to
page  252, prior to refueling.
Fuel lid Opening1.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.
WARNING
The retaining strap of the fuel cap be
jammed and crushed during closing. In this
case, the lid cannot be correctly closed and
fuel vapors or fuel can escape. There is risk of
injuries or risk of property damage. Pay atten‐
tion that the retaining strap is not jammed or
crushed when closing the lid.◀
Manually unlocking fuel filler flapE. g. in the event of an electrical malfunction.
Seite 250MobilityRefueling250
Online Edition for Part no. 0140 2 964 330 - VI/15 

Capacities 
US gal/litersNotesFuel tank, approx.Fuel quality, refer to
page 252
Seite 300ReferenceTechnical data300
Online Edition for Part no. 0140 2 964 330 - VI/15
20.6/78 

Fragrance, see Ambient airpackage  211 
Fragrancing, see Ambient air package  211 
Front airbags  136 
Front center armrest  227 
Front cupholder  228 
Front fog lights  132 
Front passenger seat, adjust‐ ing  78 
Front-seat passenger airbags, automatic deactivation  138 
Front-seat passenger airbags, indicator lamp  138 
Front seats  76 
FTM Flat Tire Monitor  268 
Fuel  252 
Fuel consumption, see Aver‐ age fuel consumption  124 
Fuel filler flap  250 
Fuel gauge  118 
Fuel lid  250 
Fuel quality  252 
Fuel recommendation  252 
Fuel, tank capacity  300 
Fuse  285 
G
Garage door opener, see Uni‐ versal Integrated Remote
Control  215 
Gasoline  252 
Gear change, Steptronic transmission  106 
Gear shift indicator  120 
General driving notes  234 
General settings  38 
Gentleman function  78 
Gesture  30 
Gesture control  30 
Gesture operation  30 
Glare shield  217 
Glass sunroof, powered  73 
Glove compartment  225 Gross vehicle weight, ap‐
proved  299 
H
Handbrake, see Parking brake  100 
Hand-held transmitter, alter‐ nating code  216 
Hand movement  30 
Hazard warning flashers  286 
HDC Hill Descent Con‐ trol  165  
Head airbags  136 
Headlight control, auto‐ matic  130 
Headlight courtesy delay fea‐ ture  130 
Headlight courtesy delay fea‐ ture via remote control  61 
Headlight flasher  103 
Headlight glass  282 
Headlights, care  292 
Head restraint pillows  84 
Head restraints  76 
Head restraints, front  82 
Head restraints, rear  83 
Head-up Display  126 
Head-up Display, care  294 
Heating, see Parked-car heat‐ ing  209  
Heavy cargo, stowing  238 
High-beam Assistant  132 
High beams  103 
High beams/low beams, see High-beam Assistant  132 
Hill Descent Control HDC  165 
Hills  236 
Hill start assistant, see Drive- off assistant  163 
Holder for beverages  228 
Homepage  6 
Hood  272 
Horn  14 
Hotel function, trunk lid  65 Hot exhaust system  235 
HUD Head-up Display  126 
Hydroplaning  235 
I iBrake — Post Crash  161 
Ice warning, see External temperature warning  118 
Icy roads, see External tem‐ perature warning  118 
Identification marks, tires  256 
Identification number, see ve‐ hicle identification num‐
ber  10 
Idle state, operating and drive readiness  19 
iDrive  21 
Ignition key, see Remote con‐ trol  54 
Indication of a flat tire  266 , 269  
Indicator and alarm lamps, see Check Control  114 
Indicator lamp, see Check Control  114 
Individual air distribution  205 
Individual settings, see pro‐ files  58 
Inflation pressure, tires  254 
Inflation pressure warning FTM, tires  268 
Information  6 
Initialize, Tire Pressure Moni‐ tor TPM  265 
Initializing, Flat Tire Monitor FTM  269 
Instrument cluster  113 
Instrument lighting  133 
Integral Active Steering  166 
Integrated key  54 
Integrated Owner's Manual in the vehicle  49 
Intelligent Emergency Re‐ quest  286 
Intelligent Safety  139 Seite 306ReferenceEverything from A to Z306
Online Edition for Part no. 0140 2 964 330 - VI/15 

QQueuing Assistant, see Steering and lane guidance
assistant including Traffic
Jam Assist  177 
R Radiator fluid  277 
Radio  6 
Radio-operated key, see Re‐ mote control  54 
Rain sensor  104 
Rear automatic climate con‐ trol  207  
Rear axle steering  166 
Rear center armrest  227 
Rear collision prevention  159 
Rear collision warning  159 
Rear cooler  223 
Rear drink holder  228 
Rear seats  78 
Rear seats, basic position  80 
Rear vanity mirror  86 
Rearview camera, see Sur‐ round View  187 
Rearview camera, without Surround View  184 
Rearview mirror  85 
Rear window defroster  206 
Recirculated-air mode  205 
Recommended fuel grade  252 
Recommended tire brands  259 
Refueling  250 
Remaining range  123 
Remote control/key  54 
Remote control, malfunc‐ tion  62 
Remote control, univer‐ sal  215  
Remote control with dis‐ play  55 
Replace front fog lamps  282 Replace front lamps  282 
Replace headlamps  282 
Replace key lights  282 
Replace LED front fog lamps  282 
Replace LED headlights  282 
Replace light-emitting diodes, LEDs  282 
Replacement fuse  285 
Replace tail lamps  282 
Replacing parts  281 
Replacing wheels/tires  258 
Reporting safety malfunc‐ tions  10 
RES CNCL button, see Active Cruise Control, ACC  168 
RES CNCL button, see Cruise control  175 
Reserve warning, see Range  123 
Reset, Tire Pressure Monitor TPM  265 
Retaining straps, securing cargo  238 
Retreaded tires  259 
Roadside parking lights  130 
Roller sunblinds  72 
RON recommended fuel grade  252 
Roofliner  18 
Roof load capacity  299 
Roof-mounted luggage rack  238 
Rope for tow-starting/ towing  289 
Route-ahead assistant  244 
RSC Run Flat System Com‐ ponent, see Run-flat
tires  260 
Rubber components, care  293 
Run-flat tires  260 
S Safe braking  235 Safety belt reminder for driv‐
er's seat and front passen‐
ger seat  81 
Safety belts  80 
Safety belts, care  293 
Safety package, see Active Protection  160 
Safety switch, windows  71 
Safety systems, airbags  136 
Safety systems, see Intelli‐ gent Safety  139 
Saving fuel  240 
Screen, see Control Dis‐ play  21 
Screwdriver, see Onboard ve‐ hicle tool kit  281 
Screw thread for tow fitting, see tow-starting/towing,
thread for tow fitting, see
tow-starting/towing  289 
Sealant  260 
Seat belts, see Safety belts  80 
Seat cushion heating  91 
Seat heating  91 
Seating position for chil‐ dren  93 
Seat, mirror, and steering wheel memory  87 
Seats  76 
Seats, front  76 
Seats, rear  78 
Seat ventilation  92 
Selection list in instrument cluster  121 
Selector lever, Steptronic transmission  106 
Self-leveling suspension  200 
Sensors, care  294 
Service and warranty  8 
Service requirements, Condi‐ tion Based Service
CBS  279 
Service requirements, dis‐ play  119 
Services, ConnectedDrive  6 Seite 309Everything from A to ZReference309
Online Edition for Part no. 0140 2 964 330 - VI/15