
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.▷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‐
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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 or rim sizes on the
front and rear axles.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.
Mobility System
The concept With the Mobility System, minor tire damagecan be sealed quickly to enable continued
travel. To accomplish this, sealant is pumped
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Replacing the reversing lamp and inner
brake lamp1.Loosen the two holders, arrow 1 and pull
down on the lamp holder to remove, ar‐
row 2.2.Unscrew the defective bulb of the revers‐
ing or brake lamp from its socket counter‐
clockwise.3.Insert the new bulb.
Installing the bulb holder
1.Slide the bulb holder onto the two guide
pins, arrow 1. Insert the two contacts, ar‐
row 2, into the connections, arrow 3.2.Press on the bulb holder. Make sure that
the two exterior holders latch into place.3.Place the cover back in position and slide it
inwards.
Rear lamp, license plate lamp and
central brake lamp
Follow general instructions, refer to page  210.
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 the service center
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Screen, refer to Control Dis‐play  18 
Screwdriver, see Onboard ve‐ hicle tool kit  210 
Screw thread, see screw thread for tow fitting, screw
thread for tow fitting  225 
Sealant  197 
Seat and mirror memory  57 
Seat belts, refer to Safety belts  54 
Seat heating, front  54 
Seat heating, rear  54 
Seating position for chil‐ dren  61 
Seats  51 
Selection list in instrument cluster  86 
Selector lever, Steptronic transmission  73 
Sensors, care  229 
Service and warranty  8 
Service requirements, Condi‐ tion Based Service
CBS  208 
Service requirements, dis‐ play  83 
Services, ConnectedDrive 
Servotronic  125 
SET button, see Active Cruise Control, ACC  126 
SET button, see Cruise con‐ trol  132  
Settings, locking/unlock‐ ing  45 
Settings on Control Dis‐ play  89 
Settings, storing for seat, mir‐ ror  57 
Shift paddles on the steering wheel  74 
Side airbags  97 
Side View  139 
Signaling, horn  14 
Signals when unlocking  45 
Sitting safely  51 Size  232 
Slide/tilt glass roof  49 
Smallest turning radius  232 
Snow chains  201 
Socket  158 
Socket, OBD Onboard Diag‐ nostics  209 
SOS button  221 
Spare fuse  219 
Specified engine oil types  206 
Speed, average  87 
Speed limit detection, on- board computer  87 
Speed limiter, display  84 
Speed Limit Information  84 
Speed warning  88 
Split screen  23 
SPORT+ - program, Dynamic Driving Control  123 
Sport displays, torque dis‐ play, performance dis‐
play  88 
SPORT program, Dynamic Driving Control  123 
Sport program, transmis‐ sion  74 
Sport steering, variable  121 
Stability control systems  119 
Start/stop, automatic func‐ tion  67 
Start/Stop button  65 
Start function during malfunc‐ tion  35 
Starting the engine  66 
Status control display, tires  101 
Status information, iDrive  23 
Status of Owner's Manual  7 
Steering assistance  125 
Steering wheel, adjusting  60 
Steering wheel heating  60 
Steptronic Sport transmis‐ sion, refer to Steptronic
transmission  72 
Steptronic transmission  72 Stopping the engine  66 
Storage compartment in the rear  165 
Storage compartments  163 
Storage compartments, loca‐ tions  163 
Storage, tires  197 
Storing the vehicle  229 
Suitable engine oils  206 
Summer tires, tread  195 
Sun visor  158 
Supplementary text mes‐ sage  81 
Surround View  137 
Switch for Dynamic Driv‐ ing  122  
Switch-on times, parked-car ventilation  153 
Switch, refer to Cockpit  14 
Symbols  6 
Symbols in the status field  23 
T Tachometer  81 
Tailgate, automatic  40 
Tailgate, closing with no- touch activation  43 
Tailgate, emergency unlock‐ ing  42 
Tailgate, hotel function  42 
Tailgate, opening with no- touch activation  43 
Tailgate via remote con‐ trol  38 
Tail lights  216 
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  148, 150  
Temperature display for ex‐ ternal temperature  82 Seite 243Everything from A to ZReference243
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