Message when the system was not
reset
A Check Control message is displayed.
The system detected a wheel change but was
not reset.
Warnings regarding the current tire inflation
pressure are not reliable.
Check the tire inflation pressure and reset the
system.
Malfunction The yellow warning lamp flashes and
then lights up continuously. A Check
Control message is displayed. No flat
tire can be detected.
Display in the following situations:▷A wheel without TPM electronics is fitted:
have the service center check it if necessary.▷Malfunction: have the system checked by
your service center.▷TPM could not be fully reset. Reset the sys‐
tem again.▷Disturbance by systems or devices with the
same radio frequency: after leaving the area
of the disturbance, 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 la‐
bel, you should determine the proper tire infla‐
tion pressure for those tires.) As an added safety
feature, your vehicle has been equipped with a
tire pressure monitoring system (TPMS) that il‐
luminates a low tire pressure telltale when one
or more of your tires is significantly under-in‐
flated. 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 pressure. Driving on a significantly
under-inflated tire causes the tire to overheat
and can lead to tire failure. Under-inflation also
reduces fuel efficiency and tire tread life, and
may affect the vehicle's handling and stopping
ability. Please note that the TPMS is not a sub‐
stitute 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 indicator to
indicate when the system is not operating prop‐
erly. The TPMS malfunction indicator is com‐
bined with the low tire pressure telltale. When
the system detects a malfunction, the telltale will
flash for approximately one minute and then re‐
main continuously illuminated. This sequence
will continue upon subsequent vehicle start-ups
as long as the malfunction exists. When the mal‐
function 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
replacement or alternate tires or wheels on the
vehicle that prevent the TPMS from functioning
properly. Always check the TPMS malfunction
telltale after replacing one or more tires or
wheels on your vehicle to ensure that the re‐
placement or alternate tires and wheels allow
the TPMS to continue to function properly.
FTM Flat Tire Monitor
The concept
The system does not measure the actual infla‐
tion pressure in the tires.
It detects a pressure loss in a tire by comparing
the rotational speeds of the individual wheels
while moving.Seite 97SafetyControls97
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New tires
Due to technical factors associated with their
manufacture, tires do not achieve their full trac‐
tion potential until after an initial breaking-in pe‐
riod.
Drive conservatively for the first
200 miles/300 km.
Retreaded tires
The manufacturer of your vehicle does not rec‐
ommend the use of retreaded tires.
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
The manufacturer of your vehicle recommends
winter tires for winter roads or at temperatures
below +45 ℉/+7 ℃.
Although so-called all-season M+S tires do 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 display a corresponding sign in the field of
vision. You can obtain this sign from the tire spe‐
cialist or from your service center.
Maximum speed for winter tires
Do not exceed the maximum speed for the
winter tires; otherwise, tire damage and acci‐
dents 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 thecase of a flat tire. Your service center will be glad
to advise you.
Rotating wheels between axles
The manufacturer of your vehicle advises
against swapping wheels between the front and
rear axles.
This can impair the handling characteristics.
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 re‐
main drivable to a restricted degree in the event
of a pressure loss.
Continued driving with a damaged tire, refer to
page 99.
Continued driving with a damaged tire, refer to
page 96.
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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 your vehicle,
classified as road-safe and recommended.
Consult your service center for more informa‐
tion.
Use
Use only in pairs on the rear wheels, equipped
with the tires of the following size:▷225/55 R 17.▷245/45 R 18.▷245/40 R 19
Follow the chain manufacturer's instructions.
Make sure that the snow chains are always suf‐
ficiently tight. Retighten as needed according to
the chain manufacturer's instructions.
Do not initialize the Flat Tire Monitor after
mounting snow chains, as doing so may result
in incorrect readings.
Do not initialize the Tire Pressure Monitor after
mounting snow chains, as doing so may result
in incorrect readings.
When driving with snow chains, briefly activate
Dynamic Traction Control if necessary.
Maximum speed with snow chains
Do not exceed a speed of 30 mph/50 km/h when
using snow chains.
Snow chain detection
The concept
When using snow chains, you should set
whether you are driving with or without snow
chains via the iDrive.
The snow chain detection system supports you
by automatically showing the detected state on
the Control Display.
When snow chains are in use, the rear axle steer‐
ing of the Integral Active Steering is deactivated
automatically.
At speeds above the maximum permitted speed
with snow chains of 30 mph/50 km/h, the rear
axle steering is activated again automatically.
Activating the status1."Settings"2."Tire chains"3."Tire chains installed"
Automatic detection
If functioning properly:
▷Snow chains are mounted. The setting is not
activated
.
After you drive a short distance, a Check
Control message is shown and the state is
activated automatically.
Confirm the automatic activation.
▷Snow chains are not mounted. The setting
is activated
.
At speeds above 30 mph/50 km/h, a Check
Control message is displayed. Deactivate
the status manually.
If not functioning properly:
▷Snow chains are mounted. The setting is not
activated
.
A Check Control message is not displayed.
The automatic detection system is malfunc‐
tioning. Activate the status manually.
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Lamps in the trunk lid
Access to the lamps
If necessary, remove the fasteners using the
screwdriver from the onboard vehicle tool kit
and fold away the cover.
Inside brake lamp
Follow the general instructions on lamps and
bulbs, refer to page 192.
24-watt bulb, HP24W
1.Squeeze the bulb holder and pull it out.2.Pull off the connector.3.Replace the bulb.4.Mount the bulb holder and the cover of the
trunk lid in reverse order.
Reversing lamp
Follow the general instructions on lamps and
bulbs, refer to page 192.
16-watt bulb, W16W1.Unscrew the bulb holder counterclockwise.2.Pull out the bulb and replace it.3.Mount the bulb holder and the cover of the
trunk lid in reverse order.
Changing wheels
Notes
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 in the positions shown.
Seite 195Replacing componentsMobility195
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Protective function, glass sun‐roof 44
Protective function, win‐ dows 42
Push-and-turn switch, refer to Controller 16
R
Radiator fluid 188
Radio-operated key, refer to Remote control 30
Radio ready state 58
Radio, see user's manual for Navigation, Entertainment
and Communication
Rain sensor 66
Rear axle steering 113
Rear center armrest 152
Rear lamps 194
Rearview mirror 51
Rear window defroster 142
Recirculated-air mode 142
Recommended tire brands 180
Refueling 170
Remaining range 78
Remote control/key 30
Remote control, malfunc‐ tion 35
Remote control, universal 145
Replacement fuse 197
Replacing parts 192
Replacing wheels/tires 180
Reporting safety defects 8
RES button 120
Reserve warning, refer to Range 78
Reset, Tire Pressure Monitor TPM 95
Residual heat, automatic cli‐ mate control 142
Retaining straps, securing cargo 162
Retreaded tires 181 Reversing lamp, bulb replace‐
ment 195
Roadside parking lamps 87
Roller sunblinds 42
Roll stabilization, refer to Adaptive Drive 113
Roll stabilization, refer to Dy‐ namic Drive 113
RON gasoline quality 172
Rope for tow-starting/tow‐ ing 201
RSC Run Flat System Compo‐ nent, refer to Run-flat
tires 181
Rubber components, care 205
Run-flat tires 181
S
Safe braking 159
Safety 7
Safety belt reminder for driv‐ er's seat and front passenger
seat 49
Safety belts 49
Safety belts, care 205
Safety switch, windows 42
Safety systems, airbags 91
Saving fuel 0
Screen, refer to Control Dis‐ play 16
Screwdriver 192
Screw thread for tow fit‐ ting 202
Seat belts, refer to Safety belts 49
Seat heating, front 47
Seat heating, rear 48
Seating position for chil‐ dren 54
Seat, mirror, and steering wheel memory 51
Seats 45
Seat ventilation, front 48 Selection list in instrument
cluster 81
Selector lever, automatic transmission 68
Sensors, care 206
Service and warranty 7
Service requirements, Condi‐ tion Based Service CBS 189
Service requirements, dis‐ play 78
Service, Roadside Assis‐ tance 199
Settings on Control Dis‐ play 83
Settings, storing for seat, mir‐ rors, steering wheel 51
Shifting, automatic transmis‐ sion 67
Shift paddles on steering wheel 69
Short commands 213
Shoulder support 47
Side airbags 91
Side View 133
Signaling, horn 12
Signals when unlocking 35
Sitting safely 45
Size 210
Ski bag 149
Smallest turning circle 211
Smoker's package 147
Snow chains 182
Socket 148
Socket, OBD Onboard Diag‐ nostics 190
SOS button 198
Spare fuse 197
Speaker lighting 90
Specified engine oil types 187
Speed, average 82
Speed limit detection, on‐ board computer 82
Speed limiter, display 79
Speed Limit Information 79 Seite 228ReferenceEverything from A to Z228
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