
temperature falls again. This behavior may
cause a warning to be issued if 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 pressure can be detected.
Display in the following situations:▷A wheel without TPM electronics is fitted:
have the service center check it if neces‐
sary.▷Malfunction: have the system checked by
your service center.▷TPM was unable to complete the reset.
Reset the system again.▷Disturbance by systems or devices with
the same radio frequency: after leaving the
area of the disturbance, the system auto‐
matically 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 conceptThe system detects a pressure loss on the ba‐sis of speed differences between the individual
wheels while driving.
In the event of a pressure loss, the diameter
and therefore the rotational speed of the corre‐
sponding wheel change. This is detected and
reported as a flat tire.
The system does not measure the actual infla‐
tion pressure in the tires.Seite 101SafetyControls101
Online Edition for Part no. 01 40 2 925 793 - II/14

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 do
provide better winter traction than summer tires, they do not provide the same level of per‐
formance 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 display a corresponding sign in the 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 tires If you are already using run-flat tires, for your
own safety you should replace them only with
the 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 neces‐
sary.
Rotating the tires is not permissible on vehi‐
cles with different tire sizes on the front andrear 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 are composed of special rims and
tires that are self-supporting, to a limited de‐
gree.
The support of the sidewall allows the tire to
remain drivable to a restricted degree in the
event of a pressure loss.
FTM: continued driving with a damaged tire,
refer to page 103.
TPM: continued driving with a damaged tire,
refer to page 100.
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.
Seite 197Wheels and tiresMobility197
Online Edition for Part no. 01 40 2 925 793 - II/14

Changing wheels
Hints
The vehicle equipment does not include a
spare tire.
When using run-flat tires or tire sealants, a tire
does not need to be changed immediately in
the event of pressure loss due to a flat tire.
The tools for changing wheels are available as
accessories from your service center.
Jacking points for the vehicle jack
The jacking points for the vehicle jack are lo‐
cated at the positions shown.
Vehicle battery Maintenance
The battery is maintenance-free.
The added amount of acid is sufficient for the
service life of the battery.
Your service center will be glad to advise you
on questions regarding the battery.
Battery replacement Use approved vehicle batteries only
Only use vehicle batteries that have been
approved for your vehicle by the manufacturer;
otherwise, the vehicle could be damaged and
systems or functions may not be fully availa‐
ble.◀
After a battery replacement, have the battery
registered on the vehicle by your service cen‐
ter to ensure that all comfort functions are fully
available and that any Check Control mes‐
sages of these comfort functions are no longer
displayed.
Charging the battery
Note Do not connect charging devices to the12 volt socket in the vehicle
Do not connect battery chargers to the fac‐
tory-installed 12 volt sockets in the vehicle as
this may damage the vehicle battery due to an
increased power consumption.◀
General information Make sure that the battery is always suffi‐
ciently charged to guarantee that the battery
remains usable for its full service life.
The battery may need to be charged in the fol‐
lowing cases:▷When making frequent short-distance
drives.▷If the vehicle is not used for prolonged pe‐
riods, longer than a month.
Starting aid terminals
In the vehicle, only charge the battery via the
starting aid terminals, refer to page 221, in the
engine compartment with the engine off.
Power failure After a temporary power loss, some equipment
needs to be reinitialized.
Individual settings need to be reprogrammed:
▷Seat and mirror memory: store the posi‐
tions again.▷Time: update.▷Date: update.Seite 216MobilityReplacing components216
Online Edition for Part no. 01 40 2 925 793 - II/14

Settings on Control Dis‐play 87
Settings, storing for seat, mir‐ ror 54
Shifting, automatic transmis‐ sion 70
Shifting, manual transmis‐ sion 70
Shift paddles on steering wheel 72
Side airbags 95
Side View 134
Signaling, horn 12
Signals when unlocking 41
Sitting safely 48
Size 232
Slide/tilt glass roof 45
Smallest turning circle 232
Snow chains 198
Socket 153
Socket, OBD Onboard Diag‐ nostics 205
Soot particulate filter 169
SOS button 219
Spare fuse 217
Specified engine oil types 203
Speed, average 85
Speed limit detection, on‐ board computer 86
Speed limiter, display 82
Speed Limit Information 82
Speed warning 86
Split screen 22
SPORT+ - program, Dynamic Driving Control 117
Sport automatic transmis‐ sion 72
Sport displays, torque dis‐ play, performance dis‐
play 86
SPORT program, Dynamic Driving Control 118
Sport program, transmis‐ sion 72
Sport steering, variable 117 Stability control systems 115
Start/stop, automatic func‐ tion 64
Start/Stop button 62
Start function during malfunc‐ tion 33
Starting the engine 63
Status control display, tires 98
Status information, iDrive 21
Status of Owner's Manual 6
Steering wheel, adjusting 57
Steering wheel heating 57
Steptronic, automatic trans‐ mission 70
Stopping the engine 63
Storage compartment in the rear 161
Storage compartments 159
Storage compartments, loca‐ tions 159
Storage, tires 197
Storing the vehicle 228
Summer tires, tread 195
Supplementary text mes‐ sage 78
Surround View 131
Switch for Dynamic Driv‐ ing 117
Switch-on times, parked-car ventilation 148
Switch, refer to Cockpit 12
Symbols 6
Symbols in the status field 21
T Tachometer 79
Tailgate, automatic 37
Tailgate opening with no- touch activation 40
Tailgate via remote con‐ trol 36
Tail lamp 213
Tail lamps 213, 215 Technical changes, refer to
Safety 7
Technical data 232
Telephone, see user's manual for Navigation, Entertain‐
ment and Communication
Temperature, automatic cli‐ mate control 143, 145
Temperature display for ex‐ ternal temperature 80
Temperature, engine oil 79
Tempomat, refer to Active Cruise Control 120
Terminal, starting aid 221
Text message, supplemen‐ tary 78
Theft alarm system, refer to Alarm system 42
Thigh support 50
Tilt alarm sensor 43
Time of arrival 86
Tire damage 195
Tire identification marks 193
Tire inflation pressure 191
Tire inflation pressure moni‐ tor, refer to FTM 101
Tire Pressure Monitor TPM 98
Tires, changing 196
Tires, everything on wheels and tires 191
Tires, run-flat tires 197
Tire tread 195
Tone, see user's manual for Navigation, Entertainment
and Communication
Tool 207
Top View 135
Total vehicle weight 232
Touchpad 19
Tow fitting 223
Towing 222
Tow-starting 222
Tow truck 222
TPM Tire Pressure Moni‐ tor 98 Seite 241Everything from A to ZReference241
Online Edition for Part no. 01 40 2 925 793 - II/14