
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 103SafetyControls103
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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 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 axlesDifferent wear patterns can occur on the frontand 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.
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.
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These lights are made using LED technology.
Contact your service center in the event of a
malfunction.
Changing wheels
Hints When using run-flat tires or sealants, a tire
does not need to be changed immediately in
the event of pressure loss due to a flat tire.
Which is why no spare tire is available.
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.
Further information about the battery can be
obtained from your service center.
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 features are fully
available and that any Check Control mes‐
sages of these comfort features are no longer
displayed.
Charging the battery
Note Do not connect charging devices to the
12 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  217, in the
engine compartment with the engine off.
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Servotronic 123 
SET button, see Active Cruise Control, ACC  124 
SET button, see Cruise con‐ trol  130  
Settings, locking/unlock‐ ing  42 
Settings on Control Dis‐ play  88 
Settings, storing for seat, mir‐ ror  57 
Shift paddles on steering wheel  73 
Side airbags  96 
Side View  137 
Signaling, horn  14 
Signals when unlocking  43 
Sitting safely  52 
Size  226 
Smallest turning radius  226 
Snow chains  196 
Socket  157 
Socket, OBD Onboard Diag‐ nostics  204 
SOS button  215 
Spare fuse  213 
Specified engine oil types  202 
Speed, average  86 
Speed limit detection, com‐ puter  86 
Speed limiter, display  83 
Speed Limit Information  83 
Speed warning  87 
Split screen  23 
SPORT+ - program, Dynamic Driving Control  122 
Sport displays, torque dis‐ play, performance dis‐
play  87 
SPORT program, Dynamic Driving Control  122 
Sport program, transmis‐ sion  73 
Sport steering, variable  121 
Stability control systems  119 Start/stop, automatic func‐
tion  66 
Start/Stop button  64 
Start function during malfunc‐ tion  35 
Starting the engine  65 
Status control display, tires  101 
Status information, iDrive  23 
Status of Owner's Manual  6 
Steering assistance  123 
Steering wheel, adjusting  60 
Steering wheel heating  60 
Steptronic Sport transmis‐ sion  73 
Steptronic transmission  72 
Stopping the engine  65 
Storage compartment in the rear  165 
Storage compartments  163 
Storage compartments, loca‐ tions  163 
Storage, tires  196 
Storing the vehicle  223 
Summer tires, tread  194 
Sun visor  157 
Supplementary text mes‐ sage  80 
Surround View  135 
Switch for Dynamic Driv‐ ing  121  
Switch-on times, parked-car ventilation  152 
Switch, refer to Cockpit  14 
Symbols  6 
Symbols in the status field  23 
T Tachometer  80 
Tail lights  209 
Technical changes, refer to Safety  7 
Technical data  226 Telephone, see user's manual
for Navigation, Entertain‐
ment and Communication 
Temperature, automatic cli‐ mate control  146, 148  
Temperature display for ex‐ ternal temperature  81 
Temperature, engine oil  80 
Tempomat, refer to Active Cruise Control  124 
Terminal, starting aid  217 
Text message, supplemen‐ tary  80 
Theft alarm system, refer to Alarm system  43 
Thigh support  53 
Through-loading system  161 
Tilt alarm sensor  44 
Time of arrival  86 
Tire damage  194 
Tire identification marks  192 
Tire inflation pressure  188 
Tire inflation pressure moni‐ tor, refer to FTM  104 
Tire Pressure Monitor TPM  100 
Tires, changing  195 
Tires, everything on wheels and tires  188 
Tires, run-flat tires  196 
Tire tread  194 
Tone, see user's manual for Navigation, Entertainment
and Communication 
Tool  206 
Top View  138 
Total vehicle weight  227 
Touchpad  21 
Tow fitting  219 
Towing  218 
Tow lug, see tow fitting  219 
Tow-starting  218 
TPM Tire Pressure Moni‐ tor  100  
Traction control  120 Seite 237Everything from A to ZReference237
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