
DSC Dynamic Stability Control is
deactivated or DTC Dynamic Traction
Control is activated
Dynamic Stability Control DSC is
switched off or Dynamic Traction Con‐
trol DTC is switched on.
For additional information, refer to Dynamic
Stability Control, refer to page  135, and Dy‐
namic Traction Control, refer to page  136.
Flat Tire Monitor FTM The Flat Tire Monitor signals a loss of
tire inflation pressure in a tire.
Reduce your speed and stop cau‐
tiously. Avoid sudden braking and steering ma‐
neuvers.
For more information, see Flat Tire Monitor, re‐
fer to page  115.
Tire Pressure Monitor TPM Illuminated: the Tire Pressure Monitor
signals a loss of tire inflation pressure
in a tire.
Reduce your speed and stop cautiously. Avoid
sudden braking and steering maneuvers.
Flashing and then continuously illuminated: no
flat tire or loss of tire inflation pressure can be
detected.▷Interference through systems or devices
with the same radio frequency: after leav‐
ing the area of the interference, the system
automatically becomes active again.▷TPM could not conclude the reset: perform
the reset of the system again.▷A wheel without TPM electronics is fitted:
have the service center check it if needed.▷Malfunction: have the system checked by
your service center.
For more information, see Tire Pressure Moni‐
tor, refer to page  111.
Steering system
Steering system in some cases defec‐tive.
Have the steering system checked by
the service center.
Engine functions Have the vehicle checked by the serv‐ice center.
For additional information, refer to On-
board Diagnostics socket, refer to page  237.
Lane departure warning System is switched on and under cer‐
tain circumstances warns if a detected
lane is left without flashing beforehand.
For additional information, refer to Lane depar‐
ture warning, refer to page  129.
Green lights Turn signal Turn signal on.
Unusually rapid flashing of the indicator
lamp indicates that a turn signal bulb
has failed.
For additional information, refer to Turn signal,
refer to page  76.
Parking lights, headlight control Parking lights or headlights are acti‐
vated.
For additional information, refer to
Parking lights/low beams, headlight control, re‐
fer to page  103.
Front fog lights Front fog lights are activated.Seite 90ControlsDisplays90
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Actions in the event of a flat tire
Normal tires1.Identify the damaged tire.
Do this by checking the air pressure in all
four tires.
The tire pressure gage of the Mobility Sys‐
tem, refer to page  224, can possibly be
used for this purpose.
If the tire inflation pressure in all four tires
is shown to be correct, it is possible that
the Tire Pressure Monitor did not perform
a reset. Then perform the reset.
If an identification is not possible, please
contact the service center.2.Fixing a flat tire, where applicable with the
Mobility System.
Use of tire sealant, e.g., the Mobility System,
may damage the TPM wheel electronics. In
this case, have the electronics checked at the
next opportunity and have them replaced if
needed.
Run-flat tires
Maximum speed
You may continue driving with a damaged tire
at speeds up to 50 mph/80 km/h.
Continued driving with a flat tire
If continuing to drive with a damaged tire:
1.Avoid sudden braking and steering maneu‐
vers.2.Do not exceed a speed of 50 mph/80 km/h.3.Check the air pressure in all four tires at
the next opportunity.
If the tire inflation pressure in all four tires
is shown to be correct, it is possible that
the Tire Pressure Monitor did not perform
a reset. In that case, carry out a reset.
Possible driving distance with complete loss of
tire inflation pressure:
The possible driving distance after a loss of tire
inflation pressure depends on cargo load, driv‐
ing style and road conditions.
A vehicle with an average load has a possible
driving range of approx. 50 miles/80 km.
A vehicle with a damaged tire reacts differ‐
ently, e.g., it has reduced lane stability during
braking, a longer braking distance and different
self-steering properties. Adjust your driving
style accordingly. Avoid abrupt steering ma‐
neuvers or driving over obstacles, e.g., curbs,
potholes, etc.
Because the possible driving distance de‐
pends on how the vehicle is used during the
trip, the actual distance may be shorter or lon‐
ger depending on the driving speed, road con‐
ditions, external temperature, cargo load, etc.
Continued driving with a flat tire
Drive moderately and do not exceed a
speed of 50 mph/80 km/h.
Your car handles differently when you lose tire
inflation pressure, e.g., your lane stability is re‐
duced when braking, braking distances are
longer and the self-steering properties will
change.◀
Final tire failure
Vibrations or loud noises while driving
can indicate the final failure of a tire. Reduce
speed and stop; otherwise, pieces of the tire
could come loose and cause an accident. Do
not continue driving and contact your service
center.◀
Required tire inflation pressure check
message
A Check Control message is displayed in the
following situations▷The system has detected a wheel change,
but no reset was done.▷Inflation was not carried out according to
specifications.Seite 113SafetyControls113
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▷The tire inflation pressure has fallen below
the level of the last confirmation.
In this case:
▷Check the tire pressure and correct as
needed.▷Carry out a reset of the system after a tire
change.
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 vehicleSeite 114ControlsSafety114
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Wheels and tiresVehicle features and options
This 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. The respectively applicable country
provisions must be observed when using the
respective features and systems.
Tire inflation pressure Safety information
The tire characteristics and tire inflation pres‐
sure influence the following:▷The service life of the tires.▷Road safety.▷Driving comfort.
Checking the tire inflation pressure
Check the tire inflation pressure regularly
Regularly check the tire inflation pres‐
sure, and correct it as needed: at least twice a
month and before a long trip. If you fail to ob‐
serve this precaution, you may be driving on
tires with incorrect tire pressures, a condition
that may not only compromise your vehicle's
driving stability, but also lead to tire damage
and the risk of an accident.◀
Tires have a natural, consistent loss of tire in‐
flation pressure.
Tires heat up while driving, and the tire infla‐
tion pressure increases along with the tire's
temperature. The tire inflation pressure speci‐
fications relate to cold tires or tires with the
ambient temperature.
Only check the tire inflation pressure when the
tires are cold. This means after driving no more
than 1.25 miles/2 km or when the vehicle has
been parked for at least 2 hours.
The displays of inflation devices may under-
read by up to 1.45 psi/0.1 bar.
For Flat Tire Monitor: after correcting the tire
inflation pressure, reinitialize the Flat Tire
Monitor.
For Tire Pressure Monitor: after correcting the
tire inflation pressure, reset the Tire Pressure
Monitor.
Tire inflation pressure specifications
The tire inflation pressure table, refer to
page  212, contains all tire inflation pressure
specifications for the specified tire sizes at the
ambient temperature. Tire inflation pressure
specifications apply to approved tire sizes and
recommended tire brands. This information
can be obtained from your service center.
To identify the correct tire inflation pressure,
please note the following:▷Tire sizes of your vehicle.▷Maximum permitted driving speed.
Tire inflation pressures up to
100 mph/160 km/h
For speeds of up to 100 mph/160 km/h and for
optimum driving comfort, note the pressure
values in the tire inflation pressure table, refer
to page  212, and adjust as necessary.
Seite 211Wheels and tiresMobility211
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Remote control, univer‐sal  172  
Replacement fuse  244 
Replacing parts  238 
Replacing wheels/tires  223 
Reporting safety defects  9 
RES button  146 
RES button, see Active Cruise Control, ACC  143 
RES button, see Cruise con‐ trol  150  
Reserve warning, refer to Range  93 
Reset, Tire Pressure Monitor TPM  112 
Residual heat, automatic cli‐ mate control  168 
Retaining straps, securing cargo  193 
Retreaded tires  223 
Reversing lamp, bulb replace‐ ment  242 
Roadside parking lights  104 
Roller sunblinds  49 
Roll stabilization, refer to Adaptive Drive  138 
Roll stabilization, refer to Dy‐ namic Drive  138 
RON recommended fuel grade  206 
Roofliner  17 
Roof load capacity  259 
Roof-mounted luggage rack  193 
Rope for tow-starting/ towing  249 
RSC Run Flat System Com‐ ponent, refer to Run-flat
tires  224 
Rubber components, care  253 
Run-flat tires  224 
S Safe braking  190 Safety  7 
Safety belt reminder for driv‐ er's seat and front passen‐
ger seat  58 
Safety belts  57 
Safety belts, care  254 
Safety Package, refer to Ac‐ tive Protection  132 
Safety switch, windows  49 
Safety systems, airbags  108 
Saving fuel  195 
Screen, refer to Control Dis‐ play  18 
Screwdriver, see Onboard ve‐ hicle tool kit  238 
Screw thread, refer to Screw thread for tow fitting, screw
thread for tow fitting  250 
Sealant  224 
Seat belts, refer to Safety belts  57 
Seat heating, front  56 
Seat heating, rear  56 
Seating position for chil‐ dren  65 
Seat, mirror, and steering wheel memory  61 
Seats  53 
Seat ventilation, front  57 
Selection list in instrument cluster  96 
Selector lever, Steptronic transmission  80 
Sensors, care  254 
Service and warranty  8 
Service requirements, Condi‐ tion Based Service
CBS  236 
Service requirements, dis‐ play  94 
Services, ConnectedDrive 
SET button, see Active Cruise Control, ACC  143 
SET button, see Cruise con‐ trol  150  Settings, locking/unlock‐
ing  46 
Settings on Control Dis‐ play  99 
Settings, storing for seat, mir‐ rors, steering wheel  61 
Shift paddles on the steering wheel  81 
Shift point indicator  87 
Shoulder support  56 
Side airbags  108 
Side View  157 
Signaling, horn  14 
Signals when unlocking  46 
Sitting safely  53 
Size  258 
Ski bag  179 
Slide/tilt glass roof  50 
Smallest turning radius  258 
Smoker's package  174 
Snow chains  228 
Socket  176 
Socket, OBD Onboard Diag‐ nostics  237 
Soot particulate filter  189 
SOS button  245 
Spare fuse  244 
Speaker lighting  107 
Specified engine oil types  233 
Speed, average  98 
Speed limit detection, on- board computer  98 
Speed limiter, display  95 
Speed Limit Information  95 
Speed warning  99 
Split screen  23 
SPORT+ - program, Dynamic Driving Control  140 
Sport displays, torque dis‐ play, performance dis‐
play  99 
SPORT program, driving dy‐ namics  140 
Sport program, transmis‐ sion  81 Seite 269Everything from A to ZReference269
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