
The radio-ready state remains active if, e.g.,
the ignition is automatically switched off for the
following reasons:▷Opening or closing the driver's door.▷Unfastening of the driver's safety belt.▷When automatically switching from low
beams to parking lights.
If the engine is switched off and the ignition is
switched on, the system automatically
switches to the radio-ready state if the lights
are turned off or, if correspondingly equipped,
the daytime running lights are activated.
Starting the engine
Hints Enclosed areas
Do not let the engine run in enclosed
areas, since breathing in exhaust fumes may
lead to loss of consciousness and death. The
exhaust gases contain carbon monoxide, an
odorless and colorless but highly toxic gas.◀
Unattended vehicle
Do not leave the vehicle unattended with
the engine running; doing so poses a risk of
danger.
Before leaving the vehicle with the engine run‐
ning, set the parking brake and place the trans‐
mission in selector lever position P or N to pre‐
vent the vehicle from moving.◀
Repeated starting in quick succession
Avoid trying to start the vehicle repeat‐
edly and in quick succession. Otherwise, the
fuel is not burned or is inadequately burned,
posing a risk of overheating and damage to the
catalytic converter.◀
Do not wait for the engine to warm-up while
the vehicle remains stationary. Start driving at
moderate engine speeds.
Steptronic transmission
Starting the engine1.Depress the brake pedal.2.Press the Start/Stop button.
The ignition is activated automatically for a
certain time and is stopped as soon as the en‐
gine starts.
Engine stop
Hints Take the remote control with you
Take the remote control with you when
leaving the vehicle so that children, e.g., can‐
not start the engine.◀
Apply parking brake and further secure
the vehicle if needed.
Set the parking brake firmly when parking; oth‐
erwise, the vehicle could roll. On steep upward
and downward inclines, further secure the ve‐
hicle, e.g., by turning the steering wheel in the
direction of the curb.◀
Before driving into a car wash
So that the vehicle can roll into a car wash ob‐
serve instructions for going into an automatic
car wash, refer to page  221.
Steptronic transmission
Switching off the engine
1.Engage selector lever position P with the
vehicle stopped.2.Press the Start/Stop button.
The engine is switched off.
The radio-ready state is switched on.3.Set the parking brake.Seite 65DrivingControls65
Online Edition for Part no. 01 40 2 960 547 - II/15 

Driving in wet conditionsWhen roads are wet, salted, or in heavy rain,
press brake pedal ever so gently every few
miles.
Ensure that this action does not endanger
other traffic.
The heat generated in this process helps dry
the brake discs and pads.
In this way braking efficiency will be available
when you need it.
Hills Avoid stressing the brakes
Avoid placing excessive stress on the
brake system. Light but consistent brake pres‐
sure can lead to high temperatures, brakes
wearing out and possibly even brake failure.◀
Do not drive in neutral
Do not drive in neutral or with the engine
stopped, as doing so disables engine braking.
In addition, steering and brake assist are un‐
available with the engine stopped.◀
Drive long or steep downhill gradients in the
gear that requires least braking efforts. Other‐
wise the brakes may overheat and reduce
brake efficiency.
You can increase the engine's braking effect
by shifting down, going all the way to first gear,
if needed.
Brake disc corrosion
Brake disc corrosion and contamination of the
brake pads are favored by:▷Low mileage.▷Extended periods when the vehicle is not
used at all.▷Infrequent use of the brakes.
Corrosion will built up when the maximum
pressure applied to the brake pads during
braking is not reached - thus discs don't get
cleaned.
Corrosion buildup on the brake discs will cause
a pulsating effect on the brakes in their re‐
sponse - generally that cannot be corrected.
Condensation under the parked
vehicle
When using the automatic climate control,
condensation water develops collecting under‐
neath the vehicle.
These traces of water under the vehicle are
normal.Seite 170Driving tipsThings to remember when driving170
Online Edition for Part no. 01 40 2 960 547 - II/15 

4.Slide the sealing container upright into the
holder on the compressor housing, ensur‐
ing that it engages audibly.5.Screw the connection hose onto the tire
valve of the defective wheel.6.With the compressor switched off, insert
the plug into a power socket inside the ve‐
hicle.7.With the ignition turned on or the engine
running, reel on the compressor.
Switch off the compressor after 10 mi‐
nutes
Do not allow the compressor to run longer than
10 minutes; otherwise, the device will overheat
and may be damaged.◀
Let the compressor run for approx. 3 to 8 mi‐
nutes to fill the tire with sealant and achieve a
tire inflation pressure of approx. 2.5 bar.
While the tire is being filled with sealant, the
tire inflation pressure may sporadically reach
approx. 5 bar. Do not reel off the compressor at
this point.
If a tire inflation pressure of 2 bar is not
reached:
1.Switch off the compressor.2.Unscrew the filling hose from the wheel.3.Drive 33 ft/10 m forward and back to dis‐
tribute the sealant in the tire.4.Inflate the tire again using the compressor.
If a tire inflation pressure of 2 bar cannot be
reached, contact your service center.
Stowing the Mobility System
1.Remove the connection hose of the seal‐
ant container from the wheel.2.Remove the connection hose from the
sealant container.Seite 196MobilityWheels and tires196
Online Edition for Part no. 01 40 2 960 547 - II/15 

Outside air, refer to Auto‐matic recirculated-air con‐
trol  149  
Overheating of engine, refer to Coolant temperature  81 
P Paint, vehicle  222 
Parallel parking assistant  140 
Park Distance Control PDC  132 
Parked-car ventilation  151 
Parked vehicle, condensa‐ tion  170 
Parking aid, refer to PDC  132 
Parking assistant  140 
Parking brake  67 
Parking lights  91 
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, win‐ dows  46 
Plastic, care  223 
Power failure  214 
Power windows  45 
Pressure, tire air pres‐ sure  186 
Pressure warning FTM, tires  104 
Profile, refer to Personal Pro‐ file  35 
Programmable memory but‐ tons, iDrive  24 Protective function, win‐
dows  46 
Push-and-turn switch, refer to Controller  18, 19  
R Radiator fluid  204 
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  212 
Rear socket  158 
Rear turn signal, bulb replace‐ ment  210 
Rearview camera  135 
Rearview mirror  58 
Rear window de‐ froster  146, 150  
Recirculated-air filter  150 
Recirculated-air mode  147, 149  
Recommended fuel grade  184 
Recommended tire brands  193 
Refueling  182 
Remaining range  81 
Remote control/key  34 
Remote control, malfunc‐ tion  39 
Remote control, univer‐ sal  153  
Replacement fuse  214 
Replacing parts  207 
Replacing wheels/tires  192 
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  81 
Reset, Tire Pressure Monitor TPM  101 
Retaining straps, securing cargo  172 
Retreaded tires  193 
Roadside parking lights  92 
Rollover protection sys‐ tem  99 
RON recommended fuel grade  184 
Roofliner  17 
Rope for tow-starting/ towing  219 
RSC Run Flat System Com‐ ponent, refer to Run-flat
tires  194 
Rubber components, care  223 
Run-flat tires  194 
S Safe braking  169 
Safety  7 
Safety belt reminder for driv‐ er's seat and front passen‐
ger seat  56 
Safety belts  55 
Safety belts, care  223 
Safety systems, airbags  96 
Saving fuel  173 
Screen, refer to Control Dis‐ play  18 
Screwdriver, see Onboard ve‐ hicle tool kit  207 
Screw thread, see screw thread for tow fitting, screw
thread for tow fitting  220 
Sealant  194 
Seat and mirror memory  57 
Seat belts, refer to Safety belts  55 
Seat heating, front  54 Seite 238ReferenceEverything from A to Z238
Online Edition for Part no. 01 40 2 960 547 - II/15