In the event of malfunctions, deactivation
or after deployment
Only have the airbags checked, repaired or dis‐
mantled and the system scrapped by your serv‐
ice center. Non-professional attempts to service
the system could lead to failure in an emergency
or undesired triggering of the airbag, either of
which could result in injury.◀
Malfunction A Check Control message is displayed
when there is a malfunction.
Tire Pressure Monitor TPM
The concept
The tire inflation pressure is measured in the
four mounted tires. The system notifies you if
there is a significant loss of pressure in one or
more tires.
Functional requirements
The system must have been reset when the in‐
flation pressure was correct; otherwise, reliable
signaling of a flat tire is not ensured. Always use
wheels with TPM electronics to ensure that the
system will operate properly. Reset the system
after each correction of the tire inflation pres‐
sure and after every tire or wheel change.
System limits Sudden tire damage
Sudden serious tire damage caused by
external influences cannot be indicated in ad‐
vance.◀
The system does not operate correctly if it has
not been reset. For example, a flat tire may be
indicated despite correct tire inflation pres‐
sures.
The system is inactive and cannot indicate a flat
tire:▷For a mounted wheel without TPM electron‐
ics.▷When the TPM is disturbed by other sys‐
tems or devices with the same radio fre‐
quency.
Status display
The current status of the Tire Pressure Monitor
TPM can be displayed on the Control Display,
e.g., whether or not the TPM is active.
1."Vehicle Info"2."Vehicle status"3. "Tire Pressure Monitor - TPM"
The status is displayed.
Status display
The tire and system status is indicated by the
color of the tires.
A change in the tire inflation pressure during
driving is taken into account.
A correction is only necessary if this is indicated
by the TPM
Wheels, green
The tire inflation pressure is equal to the target
state.
One wheel is yellow
A flat tire or major drop in inflation pressure in
the indicated tire.
All wheels are yellow
▷A flat tire or major drop in inflation pressure
in several tires.▷The system was not reset after a wheel
change and thus warns based on the infla‐
tion pressures initialized last.▷A flat tire in one or more tires while the sys‐
tem is being reset.Seite 102ControlsSafety102
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If an identification is not possible, please
contact the service center.2.Rectify the flat tire.
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 re‐
placed if necessary.
Run-flat tires
Maximum speed
You can 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
correct, the Tire Pressure Monitor may not
have been initialized. In this case, initialize
the system.
Possible driving distance with complete loss of
tire inflation pressure:
The possible driving distance after a loss of tire
inflation pressure depends on the cargo load
and the driving style and conditions.
For a vehicle containing an average load, the
possible driving distance is approx.
50 miles/80 km.
When the vehicle is driven with a damaged tire,
its handling characteristics change, e.g., re‐
duced lane stability during braking, a longer
braking distance, and altered self-steering
properties. Adjust your driving style accord‐
ingly. Avoid abrupt steering maneuvers or driv‐
ing over obstacles, e.g., curbs, potholes, etc.
Because the possible driving distance depends
on how the vehicle is used during the trip, the
actual distance may be smaller or greater de‐
pending on the driving speed, road conditions,
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.
A loss of tire inflation pressure results in a
change in the handling characteristics, e.g., re‐
duced lane stability during braking, a longer
braking distance and altered self-steering prop‐
erties.◀
Final tire failure
Vibrations or loud noises while driving can
indicate the final failure of the tire. Reduce speed
and stop; otherwise, pieces of the tire could
come loose and cause an accident. Do not con‐
tinue driving, and contact your service center. ◀
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.Seite 104ControlsSafety104
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▷When driving on a snowy or slippery road
surface.▷Sporty driving style: slip in the drive wheels,
high lateral acceleration.▷When driving with snow chains.
Status display
The current status of the Flat Tire Monitor can
be displayed on the Control Display, e.g.,
whether or not the FTM is active.
1."Vehicle Info"2."Vehicle status"3. "Flat Tire Monitor"
The status is displayed.
Initialization
The initialization process adopts the set inflation
tire pressures as reference values for the detec‐
tion of a flat tire. Initialization is started by con‐
firming the inflation pressures.
Do not initialize the system when driving with
snow chains.
1."Vehicle Info"2."Vehicle status"3. "Reset"4.Start the engine - do not drive away.5.Start the initialization with "Reset".6.Drive away.
The initialization is completed while driving,
which can be interrupted at any time.
The initialization automatically continues when
driving resumes.
Indication of a flat tire The yellow warning lamp lights up. A
Check Control message is displayed.
There is a flat tire or a major loss in tire inflation
pressure.1.Reduce your speed and stop cautiously.
Avoid sudden braking and steering maneu‐
vers.2.Check whether the vehicle is fitted with reg‐
ular tires or run-flat tires.
Run-flat tires, refer to page 187, are labeled
with a circular symbol containing the letters
RSC marked on the tire sidewall.
Do not continue driving without run-flat
tires
Do not continue driving if the vehicle is not
equipped with run-flat tires; continued driving
may result in serious accidents.◀
When a flat tire is indicated, DSC Dynamic Sta‐
bility Control is switched on if necessary.
Actions in the event of a flat tire
Normal tires
1.Identify the damaged tire.
Do this by checking the air pressure in all
four tires.
If the tire inflation pressure in all four tires is
correct, the Flat Tire Monitor may not have
been initialized. In this case, initialize the
system.
If an identification is not possible, please
contact the service center.2.Rectify the flat tire.
Run-flat tires
Maximum speed
You can continue driving with a damaged tire at
speeds up to 50 mph/80 km/h.
Seite 106ControlsSafety106
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Pressure, tire air pres‐sure 179
Pressure warning FTM, tires 105
Profile, refer to Personal Pro‐ file 31
Programmable memory but‐ tons, iDrive 20
Protective function, win‐ dows 43
Push-and-turn switch, refer to Controller 16
R
Radiator fluid 194
Radio-operated key, refer to Remote control 30
Radio ready state 64
Radio, see user's manual for Navigation, Entertainment
and Communication
Rain sensor 71
Rear axle steering 121
Rear lamps 200
Rearview mirror 57
Rear window defroster 150
Recirculated-air mode 150
Recommended tire brands 186
Refueling 176
Remaining range 84
Remote control/key 30
Remote control, malfunc‐ tion 36
Remote control, universal 153
Replacement fuse 203
Replacing parts 198
Replacing wheels/tires 186
Reporting safety defects 8
RES button 128
Reserve warning, refer to Range 84
Reset, Tire Pressure Monitor TPM 103 Residual heat, automatic cli‐
mate control 151
Retaining straps, securing cargo 168
Retreaded tires 186
Reversing lamp, bulb replace‐ ment 201
Roadside parking lamps 94
Rollover protection sys‐ tem 101
Roll stabilization, refer to Adaptive Drive 121
Roll stabilization, refer to Dy‐ namic Drive 121
RON gasoline quality 178
Rope for tow-starting/tow‐ ing 208
RSC Run Flat System Compo‐ nent, refer to Run-flat
tires 187
Rubber components, care 213
Run-flat tires 187
S
Safe braking 165
Safety 7
Safety belt reminder for driv‐ er's seat and front passenger
seat 55
Safety belts 54
Safety belts, care 213
Safety systems, airbags 98
Saving fuel 0
Screen, refer to Control Dis‐ play 16
Screwdriver 198
Screw thread for tow fit‐ ting 209
Seat belts, refer to Safety belts 54
Seat heating, front 53
Seating position for chil‐ dren 60 Seat, mirror, and steering
wheel memory 56
Seats 51
Seat ventilation, front 53
Selection list in instrument cluster 87
Selector lever, automatic transmission 73
Sensors, care 214
Service and warranty 7
Service requirements, Condi‐ tion Based Service CBS 195
Service requirements, dis‐ play 84
Service, Roadside Assis‐ tance 205
Settings on Control Dis‐ play 90
Settings, storing for seat, mir‐ rors, steering wheel 56
Shifting, automatic transmis‐ sion 73
Shifting, manual transmis‐ sion 72
Shift paddles on steering wheel 74
Short commands 221
Shoulder support 53
Side airbags 98
Side View 141
Signaling, horn 12
Signals when unlocking 36
Sitting safely 51
Size 218
Ski bag 156
Smallest turning circle 219
Smoker's package 155
Snow chains 187
Socket 156
Socket, OBD Onboard Diag‐ nostics 196
SOS button 204
Spare fuse 203
Speaker lighting 97
Specified engine oil types 192 Seite 236ReferenceEverything from A to Z236
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