
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.
FTM Flat Tire Monitor
The concept The system detects tire inflation pressure loss
on the basis of rotation speed differences be‐
tween the individual wheels while driving.
In the event of a tire inflation pressure loss, the
diameter and therefore the rotational speed of
the corresponding wheel changes. This will be
detected and reported as a flat tire.
The system does not measure the actual infla‐
tion pressure in the tires.
Functional requirements
The system must have been initialized when
the tire inflation pressure was correct; other‐
wise, reliable flagging of a flat tire is not as‐
sured. Initialize the system after each correc‐
tion of the tire inflation pressure and after
every tire or wheel change.Seite 113SafetyControls113
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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.
Closing the windows
Open windows increase air resistance and
therefore lead to greater fuel consumption.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.
Use 1st gear to get the vehicle moving. Start‐
ing with the 2nd gear, accelerate rapidly. WhenSeite 183Saving fuelDriving tips183
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StorageStore 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.
The support of the sidewall allows the tire to
remain drivable to a restricted degree in the
event of a tire inflation pressure loss.
Follow the instructions for continued driving
with a flat tire.
Changing run-flat tires
For your own safety, only use run-flat tires. No
spare tire is available in the case of a flat tire.
Your service center will be glad to advise you.
Snow chains
Fine-link snow chains
Only certain types of fine-link snow chains
have been tested by the manufacturer of the
vehicle, classified as road-safe and approved.
Information about the approved snow chains
are available from the service center.
Use
Use only in pairs on the rear wheels, equipped
with the tires of the following size:▷225/55 R 17.▷245/45 R 18.▷245/40 R 19.
Follow the snow chain manufacturer's instruc‐
tions.
Make sure that the snow chains are always
sufficiently tight. Retighten as needed accord‐
ing to the chain manufacturer's instructions.
Do not initialize the Flat Tire Monitor after
mounting snow chains, as doing so may result
in incorrect readings.
Do not initialize the Tire Pressure Monitor after
mounting snow chains, as doing so may result
in incorrect readings.
When driving with snow chains, briefly activate
Dynamic Traction Control if needed.
Maximum speed with snow chains Do not exceed a speed of 30 mph/50 km/hwhen using snow chains.
Snow chain detection
The concept When using snow chains, settings should bemade via the iDrive for the snow chains being
applied.
The snow chain detection system supports
you by automatically showing the detected
state on the Control Display.
When snow chains are in use, the rear axle
steering of the Integral Active Steering is deac‐
tivated automatically.
At speeds above the maximum permitted
speed with snow chains of 30 mph/50 km/h,
the rear axle steering is activated again auto‐
matically.
Seite 206MobilityWheels and tires206
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Everything from A to Z
IndexA ABS, Antilock Brake Sys‐ tem 133
ACC, Active Cruise Control with Stop & Go 141
Acceleration Assistant, refer to Launch Control 80
Activated-charcoal filter 164
Active Blind Spot Detec‐ tion 129
Active Cruise Control with Stop & Go, ACC 141
Active Protection 131
Active seat, front 57
Active seat ventilation, front 57
Active Steering, integral 137
Adaptive brake assistant 133
Adaptive brake lights, refer to Brake force display 130
Adaptive drive 136
Adaptive Light Control 102
Additives, oil 211
Adjusting, steering wheel 64
Adjustments, seats/head re‐ straints 55
After washing vehicle 229
Airbags 106
Airbags, indicator/warning light 107
Air circulation, refer to Recir‐ culated-air mode 163
Air, dehumidifying, refer to Cooling function 163
Air distribution, manual 162
Air flow, automatic climate control 163
Air outlets, see ventila‐ tion 165
Air pressure, tires 196 Alarm system 44
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 135
Alternating-code hand-held transmitter 169
Alternative oil types 212
Ambient light 104
Animal detection, see Night Vision 124
Antifreeze, washer fluid 76
Antilock Brake System, ABS 133
Anti-slip control, refer to DSC 133
Approved axle load 237
Approved engine oils 212
Armrest, refer to Front center armrest 174
Arrival time 96
Ashtray 170
Assistance, Roadside Assis‐ tance 224
Assistance when driving off 133
Attentiveness assistant 131
AUTO H button 72
AUTO H button, refer to Au‐ tomatic Hold 72
AUTO intensity 162
Automatic car wash 228
Automatic Cruise Control with Stop & Go 141
Automatic Curb Monitor 62 Automatic deactivation, front-
seat passenger airbags 108
Automatic headlight con‐ trol 102
Automatic Hold 72
Automatic locking 43
Automatic recirculated-air control 163
Automatic Soft Closing, doors 40
Automatic transmission, see Steptronic transmission 77
AUTO program, automatic cli‐ mate control 162
AUTO program, intensity 162
Auto Start/Stop function 70
Average fuel consumption 95
Average speed 95
Axle loads, weights 237
B Backrest curvature, refer to Lumbar support 56
Backrest, seats 55
Backrest, width 56
Band-aids, refer to First aid kit 224
Bar for tow-starting/ towing 226
Battery replacement, remote control for parked-car heat‐
ing/ventilation 167
Battery replacement, vehicle battery 221
Battery replacement, vehicle remote control 34
Battery, vehicle 221
Belts, safety belts 58
Beverage holder, cu‐ pholder 175 Seite 240ReferenceEverything from A to Z240
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Emergency Request 223
Emergency service, refer to Roadside Assistance 224
Emergency start function, en‐ gine start 35
Emergency unlocking, trans‐ mission lock 80
Emergency unlocking, trunk lid 41
Energy Control 91
Energy recovery 92
Engine, automatic reel-off 70
Engine, automatic Start/Stop function 70
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 90
Engine oil types, alterna‐ tive 212
Engine oil types, ap‐ proved 212
Engine start during malfunc‐ tion 35
Engine start, jump-start‐ ing 225
Engine start, refer to Starting the engine 69
Engine stop 69
Engine temperature 90
Entering/exiting vehicle, as‐ sistance, steering wheel 64
Entering a car wash 228
Equipment, interior 168
Error displays, see Check Control 86
ESP Electronic Stability Pro‐ gram, refer to DSC 133 Exchanging wheels/tires 204
Exhaust system 178
Exterior mirror, automatic dimming feature 63
Exterior mirrors 62
External start 225
External temperature dis‐ play 90
External temperature warn‐ ing 90
Eyes for securing cargo 182
F
Failure message, see Check Control 86
False alarm, refer to Uninten‐ tional alarm 45
Fan, refer to Air flow 163
Filler neck for engine oil 211
Fine wood, care 231
First aid kit 224
Fitting for towing, see tow fit‐ ting 227
Flat tire, changing wheels 220
Flat Tire Monitor FTM 113
Flat tire, Tire Pressure Moni‐ tor TPM 110
Flat tire, warning lamp 111, 114
Flooding 179
Floor carpet, care 231
Floor mats, care 231
Fold-out position, wiper 76
Foot brake 179
Front airbags 106
Front center armrest 174
Front-end collision warning with braking function 116
Front-end collision warning with City Braking func‐
tion 119
Front fog lights 104
Front lights 217 front-seat passenger airbags,
automatic deactivation 108
Front-seat passenger airbags, indicator lamp 108
Front seats 55
Front turn signals, refer to Light-emitting diodes,
LEDs 219
FTM Flat Tire Monitor 113
Fuel 194
Fuel consumption, current 91
Fuel consumption, refer to Average fuel consump‐
tion 95
Fuel filler flap 192
Fuel gauge 90
Fuel lid 192
Fuel quality 194
Fuel recommendation 194
Fuel, tank capacity 238
Fuse 221
G
Garage door opener, refer to Universal Integrated Remote
Control 168
Gasoline 194
Gear change, Steptronic transmission 78
Gear shift indicator 93
General driving notes 178
Glare shield 170
Glove compartment 173
Gross vehicle weight, ap‐ proved 237
H
Handbrake, refer to Parking brake 71
Hand-held transmitter, alter‐ nating code 169
Hazard warning flashers 223
HDC Hill Descent Con‐ trol 135 Seite 243Everything from A to ZReference243
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Oil change 212
Oil change interval, service requirements 92
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 163
Overheating of engine, refer to Coolant temperature 90
P Paint, vehicle 229
Parallel parking assistant 158
Park Distance Control PDC 150
Parked vehicle, condensa‐ tion 180
Parking aid, refer to PDC 150
Parking assistant 158
Parking brake 71
Parking lights 101
Parking lights and roadside parking lights, refer to Light-
emitting diodes, LEDs 219
Parking with Automatic Hold 72
Passenger side mirror, tilting downward 62 Pathway lines, rearview cam‐
era 153
PDC Park Distance Con‐ trol 150
Pedestrian detection, see Night Vision 124
Pedestrian warning with city braking function 122
Personal Profile 35
Personal Profile, exporting profiles 36
Pinch protection system, win‐ dows 46
Plastic, care 231
Power failure 221
Power windows 45
Pressure, tire air pres‐ sure 196
Pressure warning FTM, tires 113
Profile, refer to Personal Pro‐ file 35
Programmable memory but‐ tons, iDrive 23
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 68
Radio, see user's manual for Navigation, Entertainment
and Communication
Rain sensor 75
Rear axle steering 137
Rear lights 219
Rearview camera 152
Rearview mirror 62
Rear window defroster 164
Recirculated-air mode 163 Recommended fuel
grade 194
Recommended tire brands 205
Refueling 192
Remaining range 91
Remote control/key 34
Remote control, malfunc‐ tion 39
Remote control, parked-car heating/ventilation 166
Remote control, univer‐ sal 168
Replacement fuse 221
Replacing bulbs, see Lamp replacement 217
Replacing parts 217
Replacing wheels/tires 204
Reporting safety defects 9
RES button 144
RES button, see Active Cruise Control, ACC 141
RES button, see Cruise con‐ trol 148
Reserve warning, refer to Range 91
Reset, Tire Pressure Monitor TPM 111
Residual heat, automatic cli‐ mate control 164
Retaining straps, securing cargo 182
Retreaded tires 205
Reversing lamp, bulb replace‐ ment 220
Roadside parking lights 102
Rollover protection sys‐ tem 109
Roll stabilization, refer to Adaptive Drive 136
Roll stabilization, refer to Dy‐ namic Drive 136
RON recommended fuel grade 194
Rope for tow-starting/ towing 226 Seite 246ReferenceEverything from A to Z246
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