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, such as
an emergency wheel, is mounted: 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 110ControlsSafety110
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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
Remove auxiliary mirrors, roof or rear luggage
racks which are no longer required following
use.
Attached parts on the vehicle impair the aero‐
dynamics and increase the fuel consumption.Close the windows and glass
sunroof
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.Seite 193Saving fuelDriving tips193
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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:▷255/50 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.
Seite 211Wheels and tiresMobility211
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Everything from A to Z
IndexA ABS, Antilock Brake Sys‐ tem 132
ACC, Active Cruise Control with Stop & Go 140
Acceleration Assistant, refer to Launch Control 80
Activated-charcoal filter 165
Active Blind Spot Detec‐ tion 127
Active Cruise Control with Stop & Go, ACC 140
Active Protection 129
Active roll stabilization 136
Active seat ventilation, front 54
Active Steering 136
Adaptive brake lights, refer to Brake force display 129
Adaptive Light Control 100
Additives, oil 215
Adjustments, seats/head re‐ straints 51
After washing vehicle 235
Airbags 104
Airbags, indicator/warning light 105
Air circulation, refer to Recir‐ culated-air mode 164
Air, dehumidifying, refer to Cooling function 164
Air distribution, manual 163
Air flow, automatic climate control 163
Air outlets, see ventila‐ tion 165
Air pressure, tires 204
Alarm system 45
Alarm, unintentional 46 All around the center con‐
sole 16
All around the roofliner 17
All around the steering wheel 14
All-season tires, refer to Win‐ ter tires 210
All-wheel-drive 134
Alternating-code hand-held transmitter 170
Alternative oil types 216
Animal detection, see Night Vision 122
Antifreeze, washer fluid 76
Antilock Brake System, ABS 132
Anti-slip control, refer to DSC 133
Approved axle load 241
Approved engine oils 216
Arrival time 95
Ashtray 171
Ashtray, front 171
Ashtray, rear 172
Assistance, Roadside Assis‐ tance 230
Assistance when driving off 132
Assist system, refer to Intelli‐ gent Safety 112
Attentiveness assistant 129
AUTO H button 71
AUTO H button, refer to Au‐ tomatic Hold 71
AUTO intensity 163
Automatic car wash 234
Automatic climate con‐ trol 162
Automatic Cruise Control with Stop & Go 140
Automatic Curb Monitor 59 Automatic deactivation, front-
seat passenger airbags 106
Automatic headlight con‐ trol 100
Automatic Hold 71
Automatic locking 45
Automatic recirculated-air control 164
Automatic Soft Closing, doors 40
Automatic tailgate 40
Automatic transmission, see Steptronic transmission 77
AUTO program, automatic cli‐ mate control 163
AUTO program, intensity 163
Auto Start/Stop function 69
Average fuel consumption 94
Average speed 94
Axle loads, weights 241
B Backrest curvature, refer to Lumbar support 53
Backrest, seats 51
Backrest, width 54
Bad road trips 188
Band-aids, refer to First aid kit 230
Bar for tow-starting/ towing 232
Battery replacement, vehicle battery 227
Battery replacement, vehicle remote control 34
Battery, vehicle 226
Belts, safety belts 55
Beverage holder, cu‐ pholder 181
Blinds, sun protection 48 Seite 244ReferenceEverything from A to Z244
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Energy recovery 91
Engine, automatic reel-off 69
Engine, automatic Start/Stop function 69
Engine compartment 212
Engine compartment, work‐ ing in 212
Engine coolant 217
Engine idling when driving, coasting 196
Engine oil 214
Engine oil, adding 215
Engine oil additives 215
Engine oil change 216
Engine oil filler neck 215
Engine oil temperature 89
Engine oil types, alterna‐ tive 216
Engine oil types, ap‐ proved 216
Engine start during malfunc‐ tion 35
Engine start, jump-start‐ ing 231
Engine start, refer to Starting the engine 68
Engine stop 68
Engine temperature 89
Entering a car wash 234
Equipment, interior 169
Error displays, see Check Control 85
ESP Electronic Stability Pro‐ gram, refer to DSC 133
Exchanging wheels/tires 209
Exhaust system 186
Exterior mirror, automatic dimming feature 60
Exterior mirrors 59
External start 231
External temperature dis‐ play 89
External temperature warn‐ ing 89
Eyes for securing cargo 191 F
Failure message, see Check Control 85
False alarm, refer to Uninten‐ tional alarm 46
Fan, refer to Air flow 163
Filler neck for engine oil 215
Fine wood, care 236
First aid kit 230
Fitting for towing, see tow fit‐ ting 233
Flat tire, changing wheels 224
Flat Tire Monitor FTM 111
Flat tire, Tire Pressure Moni‐ tor TPM 107
Flat tire, warning lamp 108, 111
Flooding 187
Floor carpet, care 237
Floor mats, care 237
Fold-out position, wiper 76
Foot brake 187
Front airbags 104
Front center armrest 179
Front cupholder 181
Front-end collision warning with braking function 116
Front-end collision warning with City Braking func‐
tion 113
Front fog lights 102
Front fog lights/cornering lights, bulb replace‐
ment 224
Front fog lights, bulb replace‐ ment 224
Front lights 223
front-seat passenger airbags, automatic deactivation 106
Front-seat passenger airbags, indicator lamp 106
Front seats 51
FTM Flat Tire Monitor 111
Fuel 202 Fuel consumption, current 90
Fuel consumption, refer to Average fuel consump‐
tion 94
Fuel filler flap 200
Fuel gauge 89
Fuel lid 200
Fuel quality 202
Fuel recommendation 202
Fuel, tank capacity 242
Fuse 227
G
Garage door opener, refer to Universal Integrated Remote
Control 169
Gasoline 202
Gear change, Steptronic transmission 77
Gear shift indicator 92
General driving notes 186
Glare shield 171
Glasses compartment 180
Glass sunroof, powered 48
Glove compartment 178
Gross vehicle weight, ap‐ proved 241
H
Handbrake, refer to Parking brake 70
Hand-held transmitter, alter‐ nating code 170
Hazard warning flashers 229
HDC Hill Descent Con‐ trol 135
Head airbags 104
Headlight control, auto‐ matic 100
Headlight courtesy delay fea‐ ture 99
Headlight flasher 74
Headlight glass 222
Headlights 223 Seite 247Everything from A to ZReference247
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Opening/closing via doorlock 39
Opening and closing 34
Opening and closing, without remote control 39
Opening and closing, with re‐ mote control 37
Opening the tailgate with no- touch activation 43
Operating concept, iDrive 18
Optional equipment, standard equipment 6
Outside air, refer to Auto‐ matic recirculated-air con‐
trol 164
Overheating of engine, refer to Coolant temperature 89
P Paint, vehicle 235
Parallel parking assistant 158
Park Distance Control PDC 149
Parked-car ventilation 167
Parked vehicle, condensa‐ tion 188
Parking aid, refer to PDC 149
Parking assistant 158
Parking brake 70
Parking lights 99
Parking with Automatic Hold 71
Passenger side mirror, tilting downward 59
Pathway lines, rearview cam‐ era 153
PDC Park Distance Con‐ trol 149
Pedestrian detection, see Night Vision 122
Pedestrian warning with city braking function 119
Personal Profile 35
Personal Profile, exporting profiles 36 Pinch protection system,
glass sunroof 49
Pinch protection system, win‐ dows 47
Plastic, care 236
Power failure 227
Power sunroof, glass 48
Power windows 47
Pressure, tire air pres‐ sure 204
Pressure warning FTM, tires 111
Profile, refer to Personal Pro‐ file 35
Programmable memory but‐ tons, iDrive 24
Protective function, glass sunroof 49
Protective function, win‐ dows 47
Push-and-turn reel, refer to Controller 18, 19
R Radiator fluid 217
Radio-operated key, refer to Remote control 34
Radio ready state 67
Radio, see user's manual for Navigation, Entertainment
and Communication
Rain sensor 75
Rear automatic climate con‐ trol 166
Rear center armrest 180
Rear cooler 174
Rear drink holder 181
Rear lights 224
Rear seats 55
Rearview camera 151
Rearview mirror 59
Rear window defroster 164
Recirculated-air mode 164
Recommended fuel grade 202 Recommended tire
brands 210
Refueling 200
Remaining range 90
Remote control/key 34
Remote control, malfunc‐ tion 38
Remote control, univer‐ sal 169
Replacement fuse 227
Replacement wheel 225
Replacing parts 221
Replacing wheels/tires 209
Reporting safety defects 9
RES button 143
RES button, see Active Cruise Control, ACC 140
RES button, see Cruise con‐ trol 147
Reserve warning, refer to Range 90
Reset, Tire Pressure Monitor TPM 108
Residual heat, automatic cli‐ mate control 165
Retaining straps, securing cargo 191
Retreaded tires 210
Roadside parking lights 100
Roller sunblinds 48
RON recommended fuel grade 202
Roofliner 17
Roof load capacity 241
Roof-mounted luggage rack 192
Rope for tow-starting/ towing 232
RSC Run Flat System Com‐ ponent, refer to Run-flat
tires 211
Rubber components, care 236
Run-flat tires 211 Seite 250ReferenceEverything from A to Z250
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