System limits
The system does not function properly if a re‐
set has not been carried out, e.g., a flat tire is
reported though tire inflation pressures are
correct.
The tire inflation pressure depends on the
tire's temperature. Driving or exposure to the
sun will increase the tire's temperature, thus
increasing the tire inflation pressure. The tire
inflation pressure is reduced when the tire
temperature falls again. These circumstances
may cause a warning when temperatures fall
very sharply.
Malfunction The yellow warning lamp flashes and
then lights up continuously. A Check
Control message is displayed. No flat
tire or loss of tire inflation pressure can be de‐
tected.
Display in the following situations:▷A wheel without TPM electronics is fitted:
have the service center check it if needed.▷Malfunction: have the system checked by
your service center.▷TPM was unable to complete the reset.
Reset the system again.▷Interference through systems or devices
with the same radio frequency: after leav‐
ing the area of the interference, the system
automatically becomes active again.
Declaration according to NHTSA/
FMVSS 138 Tire Pressure Monitoring
System
Each tire, including the spare (if provided)
should be checked monthly when cold and in‐
flated to the inflation pressure recommended
by the vehicle manufacturer on the vehicle
placard or tire inflation pressure label. (If your
vehicle has tires of a different size than the size
indicated on the vehicle placard or tire inflation
pressure label, you should determine the
proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle has
been equipped with a tire pressure monitoring
system (TPMS) that illuminates a low tire pres‐
sure telltale when one or more of your tires is
significantly under-inflated. Accordingly, when
the low tire pressure telltale illuminates, you
should stop and check your tires as soon as
possible, and inflate them to the proper pres‐
sure. Driving on a significantly under-inflated
tire causes the tire to overheat and can lead to
tire failure. Under-inflation also reduces fuel ef‐
ficiency and tire tread life, and may affect the
vehicle's handling and stopping ability. Please
note that the TPMS is not a substitute for
proper tire maintenance, and it is the driver's
responsibility to maintain correct tire pressure,
even if under-inflation has not reached the
level to trigger illumination of the TPMS low
tire pressure telltale. Your vehicle has also
been equipped with a TPMS malfunction indi‐
cator to indicate when the system is not oper‐
ating properly. The TPMS malfunction indica‐
tor is combined with the low tire pressure
telltale. When the system detects a malfunc‐
tion, the telltale will flash for approximately one
minute and then remain continuously illumi‐
nated. This sequence will continue upon sub‐
sequent vehicle start-ups as long as the mal‐
function exists. When the malfunction indicator
is illuminated, the system may not be able to
detect or signal low tire pressure as intended.
TPMS malfunctions may occur for a variety of
reasons, including the installation of replace‐
ment or alternate tires or wheels on the vehicle
that prevent the TPMS from functioning prop‐
erly. Always check the TPMS malfunction tell‐
tale after replacing one or more tires or wheels
on your vehicle to ensure that the replacement
or alternate tires and wheels allow the TPMS
to continue to function properly.Seite 107SafetyControls107
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Saving fuelVehicle 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 to
the selected options or country versions. This
also applies to safety-related functions and
systems.
General information
Your vehicle contains advanced technology for
the reduction of fuel consumption and emis‐
sions.
Fuel consumption depends on a number of dif‐
ferent factors.
Carrying out certain measures, such as a mod‐
erate driving style and regular maintenance,
can influence fuel consumption and the envi‐
ronmental impact.
Remove unnecessary cargoAdditional weight increases fuel consumption.
Remove attached parts
following use
Attached parts on the vehicle impair the aero‐
dynamics and increase the fuel consumption.
Close the windows and glasssunroof
Driving with the glass sunroof and windows
open results in increased air resistance and
thereby reduces the range.Tires
General information
Tires can affect fuel consumption in various
ways, e.g., tire size may influence fuel con‐
sumption.
Check the tire inflation pressure
regularly
Check and, if needed, correct the tire inflation
pressure at least twice a month and before
starting on a long trip.
Low tire inflation pressure increases rolling re‐
sistance and thus raises fuel consumption and
tire wear.
Drive away immediately
Do not wait for the engine to warm-up while
the vehicle remains stationary. Start driving
right away, but at moderate engine speeds.
This is the quickest way of warming the cold
engine up to operating temperature.
Look well ahead when
driving
Avoid unnecessary acceleration and braking.
By maintaining a suitable distance to the vehi‐
cle driving ahead of you.
Driving smoothly and proactively reduces fuel
consumption.
Avoid high engine speeds
As a rule: driving at low engine speeds lowers
fuel consumption and reduces wear.
If necessary, observe the gear shift indicator of
the vehicle, refer to page 88.Seite 183Saving fuelDriving tips183
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With proper use, these tires meet the highest
standards for safety and handling.
New tires Tire traction is not optimal due to manufactur‐
ing circumstances when tires are brand-new;
they achieve their full traction potential after a
break-in time.
Drive conservatively for the first
200 miles/300 km.
Retreaded tires
The manufacturer of your vehicle does not rec‐
ommend the use of retreaded tires.
Retreaded tires
Possibly substantial variations in the de‐
sign and age of the tire casing structures can
limit service life and have a negative impact on
road safety.◀
Winter tires
Winter tires are recommended for operating on
winter roads.
Although so-called all-season M+S tires pro‐
vide better winter traction than summer tires,
they do not provide the same level of perform‐
ance as winter tires.
Maximum speed of winter tires
If the maximum speed of the vehicle is higher
than the permissible speed for the winter tires,
then a respective symbol is displayed in your
field of vision. You can obtain this sign from the
tire specialist or from your service center.
Maximum speed for winter tires
Do not exceed the maximum speed for
the respective winter tires; otherwise, tire dam‐
age and accidents can occur.◀
Run-flat tiresIf you are already using run-flat tires, for your
own safety you should replace them only withthe same kind. No spare tire is available in the
case of a flat tire. Your service center will be
glad to advise you.
Rotating wheels between axles Different wear patterns can occur on the front
and rear axles depending on individual driving
conditions. The tires can be rotated between
the axles to achieve even wear. Your service
center will be glad to advise you. After rotating,
check the tire pressure and correct if needed.
Rotating the tires is not permissible on vehi‐
cles with different tire sizes on the front and
rear axles, i.e. when using different types of
tires.
Storage Store wheels and tires in a cool, dry place with
as little exposure to light as possible.
Always protect tires against all contact with oil,
grease and fuels.
Do not exceed the maximum tire inflation pres‐
sure indicated on the side wall of the tire.
Run-flat tires Label
RSC label on the tire sidewall.
The wheels consist of tires that are self-sup‐
porting, to a limited degree, and possibly spe‐
cial rims.
Seite 205Wheels and tiresMobility205
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Everything from A to Z
IndexA ABS, Antilock Brake Sys‐ tem 128
ACC, Active Cruise Control with Stop & Go 136
Acceleration Assistant, refer to Launch Control 75
Activated-charcoal filter 159
Active Blind Spot Detec‐ tion 123
Active Cruise Control with Stop & Go, ACC 136
Active Protection 125
Active seat, front 51
Active seat ventilation, front 52
Active Steering, integral 132
Adaptive brake assistant 128
Adaptive brake lights, refer to Brake force display 125
Adaptive drive 131
Adaptive Light Control 97
Additives, oil 211
Adjusting, steering wheel 58
Adjustments, seats/head re‐ straints 49
After washing vehicle 229
Airbags 101
Airbags, indicator/warning light 102
Air circulation, refer to Recir‐ culated-air mode 158
Air, dehumidifying, refer to Cooling function 158
Air distribution, manual 157
Air flow, automatic climate control 158
Air outlets, see ventila‐ tion 161
Air pressure, tires 196 Alarm system 43
Alarm, unintentional 45
All around the center con‐ sole 16
All around the interior rear‐ view mirror 17
All around the steering wheel 14
All-season tires, refer to Win‐ ter tires 205
All-wheel-drive 130
Alternating-code hand-held transmitter 166
Alternative oil types 212
Ambient light 99
Animal detection, see Night Vision 118
Antifreeze, washer fluid 71
Antilock Brake System, ABS 128
Anti-slip control, refer to DSC 128
Approved axle load 235
Approved engine oils 212
Armrest, refer to Front center armrest 173
Armrest, refer to Rear center armrest 173
Arrival time 91
Ashtray 167
Ashtray, rear 168
Assistance, Roadside Assis‐ tance 224
Assistance when driving off 128
Attentiveness assistant 125
AUTO H button 67
AUTO H button, refer to Au‐ tomatic Hold 67
AUTO intensity 157
Automatic car wash 228 Automatic Cruise Control
with Stop & Go 136
Automatic Curb Monitor 56
Automatic deactivation, front- seat passenger airbags 103
Automatic headlight con‐ trol 97
Automatic Hold 67
Automatic locking 43
Automatic recirculated-air control 158
Automatic Soft Closing, doors 40
Automatic transmission, see Steptronic transmission 72
AUTO program, automatic cli‐ mate control 157
AUTO program, intensity 157
Auto Start/Stop function 65
Average fuel consumption 90
Average speed 90
Axle loads, weights 235
B Backrest curvature, refer to Lumbar support 50
Backrest, seats 49
Backrest, width 51
Band-aids, refer to First aid kit 224
Bar for tow-starting/ towing 226
Battery replacement, remote control for parked-car heat‐
ing/ventilation 163
Battery replacement, vehicle battery 221
Battery replacement, vehicle remote control 34
Battery, vehicle 221 Seite 238ReferenceEverything from A to Z238
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Engine, automatic Start/Stopfunction 65
Engine compartment 208
Engine compartment, work‐ ing in 208
Engine coolant 213
Engine idling when driving, coasting 187
Engine oil 210
Engine oil, adding 211
Engine oil additives 211
Engine oil change 212
Engine oil filler neck 211
Engine oil temperature 85
Engine oil types, alterna‐ tive 212
Engine oil types, ap‐ proved 212
Engine start during malfunc‐ tion 35
Engine start, jump-start‐ ing 224
Engine start, refer to Starting the engine 64
Engine stop 64
Engine temperature 85
Entering/exiting vehicle, as‐ sistance, steering wheel 58
Entering a car wash 228
Equipment, interior 165
Error displays, see Check Control 81
ESP Electronic Stability Pro‐ gram, refer to DSC 128
Exchanging wheels/tires 204
Exhaust system 178
Exterior mirror, automatic dimming feature 57
Exterior mirrors 56
External start 224
External temperature dis‐ play 85
External temperature warn‐ ing 85
Eyes for securing cargo 182 F
Failure message, see Check Control 81
False alarm, refer to Uninten‐ tional alarm 45
Fan, refer to Air flow 158
Filler neck for engine oil 211
Fine wood, care 230
First aid kit 224
Fitting for towing, see tow fit‐ ting 227
Flat tire, changing wheels 220
Flat Tire Monitor FTM 108
Flat tire, Tire Pressure Moni‐ tor TPM 104
Flat tire, warning lamp 105, 108
Flooding 179
Floor carpet, care 231
Floor mats, care 231
Fold down the rear seat back‐ rest, see Though-loading
system 169
Fold-out position, wiper 71
Foot brake 179
For the roofliner, refer to All around the interior rearview
mirror 17
Front airbags 101
Front center armrest 173
Front-end collision warning with braking function 110
Front-end collision warning with City Braking func‐
tion 113
Front fog lights 99
Front lights 217
front-seat passenger airbags, automatic deactivation 103
Front-seat passenger airbags, indicator lamp 103
Front seats 49 Front turn signals, refer to
Light-emitting diodes,
LEDs 219
FTM Flat Tire Monitor 108
Fuel 194
Fuel consumption, current 86
Fuel consumption, refer to Average fuel consump‐
tion 90
Fuel filler flap 192
Fuel gauge 85
Fuel lid 192
Fuel quality 194
Fuel recommendation 194
Fuel, tank capacity 236
Fuse 221
G Garage door opener, refer to Universal Integrated Remote
Control 165
Gasoline 194
Gear change, Steptronic transmission 73
Gear shift indicator 88
General driving notes 178
Glare shield 167
Glass sunroof, powered with tilt function 47
Glove compartment 172
Gross vehicle weight, ap‐ proved 235
H Handbrake, refer to Parking brake 66
Hand-held transmitter, alter‐ nating code 166
Hazard warning flashers 223
HDC Hill Descent Con‐ trol 130
Head airbags 101
Headlight control, auto‐ matic 97 Seite 241Everything from A to ZReference241
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Oil change 212
Oil change interval, service requirements 87
Oil filler neck 211
Oil types, alternative 212
Oil types, approved 212
Old batteries, disposal 221
Onboard monitor, refer to Control Display 18
Onboard vehicle tool kit 217
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
Operating concept, iDrive 18
Optional equipment, standard equipment 6
Outside air, refer to Auto‐ matic recirculated-air con‐
trol 158
Overheating of engine, refer to Coolant temperature 85
P Paint, vehicle 229
Parallel parking assistant 153
Park Distance Control PDC 145
Parked vehicle, condensa‐ tion 180
Parking aid, refer to PDC 145
Parking assistant 153
Parking brake 66
Parking lights 96
Parking lights and roadside parking lights, refer to Light-
emitting diodes, LEDs 219
Parking with Automatic Hold 67
Passenger side mirror, tilting downward 56 Pathway lines, rearview cam‐
era 148
PDC Park Distance Con‐ trol 145
Pedestrian detection, see Night Vision 118
Pedestrian warning with city braking function 116
Personal Profile 35
Personal Profile, exporting profiles 36
Pinch protection system, glass sunroof 48
Pinch protection system, win‐ dows 46
Plastic, care 230
Power failure 221
Power sunroof, glass 47
Power windows 45
Pressure, tire air pres‐ sure 196
Pressure warning FTM, tires 108
Profile, refer to Personal Pro‐ file 35
Programmable memory but‐ tons, iDrive 23
Protective function, glass sunroof 48
Protective function, win‐ dows 46
Push-and-turn reel, refer to Controller 18
R Radiator fluid 213
Radio-operated key, refer to Remote control 34
Radio ready state 63
Radio, see user's manual for Navigation, Entertainment
and Communication
Rain sensor 70
Rear automatic climate con‐ trol 160 Rear axle steering 132
Rear center armrest 173
Rear lights 219
Rearview camera 147
Rearview mirror 56
Rear window defroster 159
Recirculated-air mode 158
Recommended fuel grade 194
Recommended tire brands 204
Refueling 192
Remaining range 86
Remote control/key 34
Remote control, malfunc‐ tion 38
Remote control, parked-car heating/ventilation 163
Remote control, univer‐ sal 165
Replacement fuse 221
Replacing bulbs, see Lamp replacement 217
Replacing parts 217
Replacing wheels/tires 204
Reporting safety defects 9
RES button 139
RES button, see Active Cruise Control, ACC 136
RES button, see Cruise con‐ trol 143
Reserve warning, refer to Range 86
Reset, Tire Pressure Monitor TPM 105
Residual heat, automatic cli‐ mate control 159
Retaining straps, securing cargo 182
Retreaded tires 205
Reversing lamp, bulb replace‐ ment 220
Roadside parking lights 97
Roller sunblinds 46
Roll stabilization, refer to Adaptive Drive 131 Seite 244ReferenceEverything from A to Z244
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