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 114ControlsSafety114
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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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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 244, in the
engine compartment with the engine off.
Power failure After a temporary power loss, some equipment
needs to be newly initialized or individual set‐
tings updated, e.g.:
▷Seat, mirror, and steering wheel memory:
store the positions again.▷Time: update.▷Date: update.▷Glass sunroof: initialize the system, refer to
page 51.Seite 240MobilityReplacing components240
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Reserve warning, refer toRange 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 239
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 255
Roof-mounted luggage rack 193
Rope for tow-starting/ towing 246
RSC Run Flat System Com‐ ponent, refer to Run-flat
tires 224
Rubber components, care 250
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 251
Safety Package, refer to Ac‐ tive Protection 132
Safety reel, windows 49
Safety systems, airbags 108
Saving fuel 195 Screen, refer to Control Dis‐
play 18
Screwdriver, see Onboard ve‐ hicle tool kit 235
Screw thread, see screw thread for tow fitting, screw
thread for tow fitting 247
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 251
Service and warranty 8
Service requirements, Condi‐ tion Based Service
CBS 233
Service requirements, dis‐ play 94
Service, Roadside Assis‐ tance 243
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 Lights 87
Shift paddles on steering wheel 81
Shoulder support 56
Side airbags 108 Side View 157
Signaling, horn 14
Signals when unlocking 46
Sitting safely 53
Size 254
Ski bag 179
Slide/tilt glass roof 50
Smallest turning radius 254
Smoker's package 174
Snow chains 224
Socket 176
Socket, OBD Onboard Diag‐ nostics 233
Soot particulate filter 189
SOS button 242
Spare fuse 241
Speaker lighting 107
Specified engine oil types 230
Speed, average 98
Speed limit detection, com‐ puter 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
Stability control systems 135
Start/stop, automatic func‐ tion 71
Start/Stop button 69
Start function during malfunc‐ tion 35
Starting the engine 70
Status control display, tires 112
Status information, iDrive 22
Status of Owner's Manual 6 Seite 265Everything from A to ZReference265
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