Radio ready stateActivate radio-ready state:▷When the engine is running: press the
Start/Stop button.
Some electronic systems/power consumers
remain ready for operation.
The radio-ready state switches off automati‐
cally:
▷After approx. 8 minutes.▷When the vehicle is locked using the cen‐
tral locking system.▷Shortly before the battery is discharged
completely, so that the engine can still be
started.
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.
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.
Diesel engine
If the engine is cold and temperatures are be‐
low approx. 32 ℉/0 ℃, the start process may
be delayed somewhat due to automatic pre‐
heating.
A Check Control message is displayed.
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.
Manual transmission
Starting the engine
1.Depress the brake pedal.2.Press on the clutch pedal and shift to neu‐
tral.3.Press the Start/Stop button.
The ignition is activated automatically for a
certain time and is stopped as soon as the en‐
gine starts.
Seite 70ControlsDriving70
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This phenomenon is referred to as hydroplan‐
ing. It is characterized by a partial or complete
loss of contact between the tires and the road
surface, ultimately undermining your ability to
steer and brake the vehicle.
Driving through water Observe water level and speed
Do not exceed the maximum water level
and maximum speed; otherwise, the vehicle's
engine, the electrical systems and the trans‐
mission may be damaged.◀
Drive though calm water only and only if it is
not deeper than 9.8 inches/25 cm and at this
height, no faster than walking speed, up to
3 mph/5 km/h.
Braking safely
Your vehicle is equipped with ABS as a stand‐
ard feature.
Applying the brakes fully is the most effective
way of braking in situations needed.
Steering is still responsive. You can still avoid
any obstacles with a minimum of steering ef‐
fort.
Pulsation of the brake pedal and sounds from
the hydraulic circuits indicate that ABS is in its
active mode.
In certain braking situations, the perforated
brake discs can cause functional problems.
However, this has no effect on the perform‐
ance and operational reliability of the brake.
Objects within the range of movement
of the pedals
No objects in the area around the pedals
Keep floor mats, carpets, and any other
objects out of the pedal area; otherwise, the
function of the pedals could be impeded while driving and create the risk of an accident.
Do not place additional floor mats over existing
mats or other objects.Only use floor mats that have been approved
for the vehicle and can be properly attached to
floor.
Ensure that the floor mats are securely fas‐
tened again after they were removed for clean‐
ing, e.g.◀
Driving in wet conditions When 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.Seite 190Driving tipsThings to remember when driving190
Online Edition for Part no. 0140 2 956 218 - X/14
OOBD Onboard Diagnosis 233
OBD, see OBD Onboard Di‐ agnosis 233
Object detection, see Night Vision 125
Obstacle marking, rearview camera 156
Octane rating, refer to Rec‐ ommended fuel grade 206
Odometer 92
Office, see user's manual for Navigation, Entertainment
and Communication
Oil 228
Oil, adding 229
Oil additives 229
Oil change 230
Oil change interval, service requirements 94
Oil filler neck 229
Oil types, alternative 230
Oil types, approved 230
Old batteries, disposal 241
Onboard monitor, refer to Control Display 18
Onboard vehicle tool kit 235
Opening/closing via door lock 39
Opening and closing 34
Opening and closing, without remote control 39
Opening and closing, with re‐ mote control 37
Opening the trunk lid with no- touch activation 44
Operating concept, iDrive 18
Optional equipment, standard equipment 6
Outside air, refer to Auto‐ matic recirculated-air con‐
trol 167
Overheating of engine, refer to Coolant temperature 92 P
Paint, vehicle 249
Parallel parking assistant 160
Park Distance Control PDC 152
Parked-car ventilation 171
Parked vehicle, condensa‐ tion 191
Parking aid, refer to PDC 152
Parking assistant 160
Parking brake 73
Parking lights 103
Parking with Automatic Hold 74
Particulate filter 189
Passenger side mirror, tilting downward 62
Pathway lines, rearview cam‐ era 156
PDC Park Distance Con‐ trol 152
Pedestrian detection, see Night Vision 125
Pedestrian warning with city braking function 123
Personal Profile 35
Personal Profile, exporting profiles 36
Pinch protection system, glass sunroof 51
Pinch protection system, win‐ dows 49
Plastic, care 250
Power failure 240
Power sunroof, glass 50
Power windows 48
Pressure, tire air pres‐ sure 211
Pressure warning FTM, tires 115
Profile, refer to Personal Pro‐ file 35
Programmable memory but‐ tons, iDrive 23 Protective function, glass
sunroof 51
Protective function, win‐ dows 49
Push-and-turn reel, refer to Controller 18
R Radiator fluid 231
Radio-operated key, refer to Remote control 34
Radio ready state 70
Radio, see user's manual for Navigation, Entertainment
and Communication
Rain sensor 77
Rear automatic climate con‐ trol 169
Rear axle steering 139
Rear lights 238
Rear socket 177
Rearview camera 154
Rearview mirror 62
Rear window defroster 167
Recirculated-air mode 167
Recommended fuel grade 206
Recommended tire brands 223
Refueling 204
Remaining range 93
Remote control/key 34
Remote control, malfunc‐ tion 38
Remote control, univer‐ sal 172
Replacement fuse 241
Replacing parts 235
Replacing wheels/tires 223
Reporting safety defects 9
RES button 146
RES button, see Active Cruise Control, ACC 143
RES button, see Cruise con‐ trol 150 Seite 264ReferenceEverything from A to Z264
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