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
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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
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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
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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
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