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 106ControlsSafety106
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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.
Use 1st gear to get the vehicle moving. Start‐
ing with the 2nd gear, accelerate rapidly. WhenSeite 177Saving fuelDriving tips177
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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 200MobilityWheels and tires200
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Everything from A to Z
IndexA ABS, Antilock Brake Sys‐ tem 127
ACC, Active Cruise Control with Stop & Go 135
Acceleration Assistant, refer to Launch Control 74
Activated-charcoal filter 158
Active Blind Spot Detec‐ tion 122
Active Cruise Control with Stop & Go, ACC 135
Active Protection 124
Active seat, front 50
Active seat ventilation, front 50
Active Steering, integral 131
Adaptive brake assistant 127
Adaptive brake lights, refer to Brake force display 124
Adaptive drive 130
Adaptive Light Control 96
Additives, oil 205
Adjusting, steering wheel 57
Adjustments, seats/head re‐ straints 48
After washing vehicle 223
Airbags 100
Airbags, indicator/warning light 101
Air circulation, refer to Recir‐ culated-air mode 157
Air, dehumidifying, refer to Cooling function 157
Air distribution, manual 156
Air flow, automatic climate control 157
Air outlets, see ventila‐ tion 159
Air pressure, tires 190 Alarm system 43
Alarm, unintentional 44
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 199
All-wheel-drive 129
Alternating-code hand-held transmitter 163
Alternative oil types 206
Ambient light 98
Animal detection, see Night Vision 117
Antifreeze, washer fluid 70
Antilock Brake System, ABS 127
Anti-slip control, refer to DSC 127
Approved axle load 229
Approved engine oils 206
Armrest, refer to Front center armrest 168
Arrival time 90
Ashtray 164
Assistance, Roadside Assis‐ tance 218
Assistance when driving off 127
Attentiveness assistant 124
AUTO H button 66
AUTO H button, refer to Au‐ tomatic Hold 66
AUTO intensity 156
Automatic car wash 222
Automatic Cruise Control with Stop & Go 135
Automatic Curb Monitor 55 Automatic deactivation, front-
seat passenger airbags 102
Automatic headlight con‐ trol 96
Automatic Hold 66
Automatic locking 42
Automatic recirculated-air control 157
Automatic Soft Closing, doors 39
Automatic transmission, see Steptronic transmission 71
AUTO program, automatic cli‐ mate control 156
AUTO program, intensity 156
Auto Start/Stop function 64
Average fuel consumption 89
Average speed 89
Axle loads, weights 229
B Backrest curvature, refer to Lumbar support 49
Backrest, seats 48
Backrest, width 49
Band-aids, refer to First aid kit 218
Bar for tow-starting/ towing 220
Battery replacement, remote control for parked-car heat‐
ing/ventilation 161
Battery replacement, vehicle battery 215
Battery replacement, vehicle remote control 34
Battery, vehicle 215
Belts, safety belts 51
Beverage holder, cu‐ pholder 169 Seite 232ReferenceEverything from A to Z232
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Engine coolant 207
Engine idling when driving, coasting 181
Engine oil 204
Engine oil, adding 205
Engine oil additives 205
Engine oil change 206
Engine oil filler neck 205
Engine oil temperature 84
Engine oil types, alterna‐ tive 206
Engine oil types, ap‐ proved 206
Engine start during malfunc‐ tion 35
Engine start, jump-start‐ ing 219
Engine start, refer to Starting the engine 63
Engine stop 63
Engine temperature 84
Entering/exiting vehicle, as‐ sistance, steering wheel 57
Entering a car wash 222
Equipment, interior 162
Error displays, see Check Control 80
ESP Electronic Stability Pro‐ gram, refer to DSC 127
Exchanging wheels/tires 198
Exhaust system 172
Exterior mirror, automatic dimming feature 56
Exterior mirrors 55
External start 219
External temperature dis‐ play 84
External temperature warn‐ ing 84
Eyes for securing cargo 176
F
Failure message, see Check Control 80 False alarm, refer to Uninten‐
tional alarm 44
Fan, refer to Air flow 157
Filler neck for engine oil 205
Fine wood, care 224
First aid kit 218
Fitting for towing, see tow fit‐ ting 221
Flat tire, changing wheels 214
Flat Tire Monitor FTM 107
Flat tire, Tire Pressure Moni‐ tor TPM 103
Flat tire, warning lamp 104, 107
Flooding 173
Floor carpet, care 225
Floor mats, care 225
Fold-out position, wiper 70
Foot brake 173
For the roofliner, refer to All around the interior rearview
mirror 17
Front airbags 100
Front center armrest 168
Front-end collision warning with braking function 109
Front-end collision warning with City Braking func‐
tion 112
Front fog lights 98
Front lights 211
front-seat passenger airbags, automatic deactivation 102
Front-seat passenger airbags, indicator lamp 102
Front seats 48
Front turn signals, refer to Light-emitting diodes,
LEDs 213
FTM Flat Tire Monitor 107
Fuel 188
Fuel consumption, current 85
Fuel consumption, refer to Average fuel consump‐
tion 89 Fuel filler flap 186
Fuel gauge 84
Fuel lid 186
Fuel quality 188
Fuel recommendation 188
Fuel, tank capacity 230
Fuse 215
G
Garage door opener, refer to Universal Integrated Remote
Control 162
Gasoline 188
Gear change, Steptronic transmission 72
Gear shift indicator 87
General driving notes 172
Glare shield 164
Glass sunroof, powered with tilt function 46
Glove compartment 167
Gross vehicle weight, ap‐ proved 229
H
Handbrake, refer to Parking brake 65
Hand-held transmitter, alter‐ nating code 163
Hazard warning flashers 217
HDC Hill Descent Con‐ trol 129
Head airbags 100
Headlight control, auto‐ matic 96
Headlight courtesy delay fea‐ ture 95
Headlight courtesy delay fea‐ ture via remote control 38
Headlight flasher 68
Headlight glass 212
Headlights 211
Headlights, care 223
Headlight washer system 69 Seite 235Everything from A to ZReference235
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Onboard vehicle tool kit 211
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 157
Overheating of engine, refer to Coolant temperature 84
P Paint, vehicle 223
Parallel parking assistant 152
Park Distance Control PDC 144
Parked vehicle, condensa‐ tion 174
Parking aid, refer to PDC 144
Parking assistant 152
Parking brake 65
Parking lights 95
Parking lights and roadside parking lights, refer to Light-
emitting diodes, LEDs 213
Parking with Automatic Hold 66
Passenger side mirror, tilting downward 55
Pathway lines, rearview cam‐ era 147
PDC Park Distance Con‐ trol 144
Pedestrian detection, see Night Vision 117
Pedestrian warning with city braking function 115
Personal Profile 35 Personal Profile, exporting
profiles 36
Pinch protection system, glass sunroof 47
Pinch protection system, win‐ dows 45
Plastic, care 224
Power failure 215
Power sunroof, glass 46
Power windows 44
Pressure, tire air pres‐ sure 190
Pressure warning FTM, tires 107
Profile, refer to Personal Pro‐ file 35
Programmable memory but‐ tons, iDrive 23
Protective function, glass sunroof 47
Protective function, win‐ dows 45
Push-and-turn reel, refer to Controller 18
R Radiator fluid 207
Radio-operated key, refer to Remote control 34
Radio ready state 62
Radio, see user's manual for Navigation, Entertainment
and Communication
Rain sensor 69
Rear axle steering 131
Rear lights 213
Rearview camera 146
Rearview mirror 55
Rear window defroster 158
Recirculated-air mode 157
Recommended fuel grade 188
Recommended tire brands 199
Refueling 186 Remaining range 85
Remote control/key 34
Remote control, malfunc‐ tion 38
Remote control, parked-car heating/ventilation 160
Remote control, univer‐ sal 162
Replacement fuse 215
Replacing bulbs, see Lamp replacement 211
Replacing parts 211
Replacing wheels/tires 198
Reporting safety defects 9
RES button 138
RES button, see Active Cruise Control, ACC 135
RES button, see Cruise con‐ trol 142
Reserve warning, refer to Range 85
Reset, Tire Pressure Monitor TPM 104
Residual heat, automatic cli‐ mate control 158
Retaining straps, securing cargo 176
Retreaded tires 199
Reversing lamp, bulb replace‐ ment 214
Roadside parking lights 96
Roller sunblinds 45
Roll stabilization, refer to Adaptive Drive 130
Roll stabilization, refer to Dy‐ namic Drive 130
RON recommended fuel grade 188
Rope for tow-starting/ towing 220
RSC Run Flat System Com‐ ponent, refer to Run-flat
tires 200
Rubber components, care 224
Run-flat tires 200 Seite 238ReferenceEverything from A to Z238
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