Wheels, grayThe system cannot detect a flat tire. Reasons
for this may be:▷The system is being reset.▷Malfunction.
Status information
The status control display additionally shows
the current tire inflation pressures and, de‐
pending on the model, tire temperatures. It
shows the actual values read; they may vary depending on driving style or weather condi‐
tions.
Carry out reset Reset the system after each adjustment of the
tire inflation pressure and after every tire or
wheel change.
On the Control Display and on the vehicle:
1."Vehicle info"2."Vehicle status"3. "Perform reset"4.Start the engine - do not drive off.5.Reset tire inflation pressure:"Perform
reset".6.Drive away.
The tires are shown in gray and the status is
displayed.
After driving faster than 19 mph/30 km/h for a
short period, the set tire inflation pressures are
accepted as reference values. The reset is
completed automatically while driving.
After a successfully completed Reset, the
wheels on the Control Display are shown in
green and "Tire Pressure Monitor (TPM)
active" is displayed.
You may interrupt this trip at any time. When
you continue the reset resumes automatically.
Low tire pressure message
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.▷No reset was performed for the system.
The system therefore issues a warning
based on the tire inflation pressures before
the last reset.1.Reduce your speed and stop cautiously.
Avoid sudden braking and steering maneu‐
vers.2.Identify the damaged wheel. Do so by
checking the tire inflation pressure using
the Mobility System. To correct the tire in‐
flation pressure3.Repair flat tire with the Mobility System or
replace the damaged wheel.
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
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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.
FTM Flat Tire Monitor The conceptThe system detects tire inflation pressure losson the basis of rotation speed differences be‐
tween the individual wheels while driving.
In the event of a tire inflation pressure loss, the
diameter and therefore the rotational speed of
the corresponding wheel changes. This will be
detected and reported as a flat tire.Seite 112ControlsSafety112
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The system does not measure the actual infla‐
tion pressure in the tires.
Functional requirements
The system must have been initialized when
the tire inflation pressure was correct; other‐
wise, reliable flagging of a flat tire is not as‐
sured. Initialize the system after each correc‐
tion of the tire inflation pressure and after
every tire or wheel change.
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.
On the Control Display:1."Vehicle info"2."Vehicle status"3. "Flat Tire Monitor (FTM)"
The status is displayed.
Initialization
When initializing the once set inflation tire
pressures serve as reference values in order to
detect a flat tire. Initialization is started by con‐
firming the tire inflation pressures.
Do not initialize the system when driving with
snow chains.
On the Control Display:
1."Vehicle info"2."Vehicle status"3. "Perform reset"4.Start the engine - do not drive off.5.Start the initialization with "Perform 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.Identify the damaged wheel. Do so by
checking the tire inflation pressure using
the Mobility System. If the tire inflation
pressure in all tires is correct, the Flat Tire
Monitor may not have been initialized. In
this case, initialize the system.3.Repair flat tire with the Mobility System or
replace the damaged wheel.
System limits
Sudden tire damage
Sudden serious tire damage caused by
external circumstances cannot be recognized
in advance.◀
A natural, even tire inflation pressure loss in all
four tires will not be recognized. Therefore,
check the tire inflation pressure regularly.
The system could be delayed or malfunction in
the following situations:
▷When the system has not been initialized.▷When driving on a snowy or slippery road
surface.▷Sporty driving style: spinning traction
wheels, high lateral acceleration (drifting).▷When driving with snow chains.
Intelligent Safety
The concept
Intelligent Safety enables central operation of
the driver assistance system.
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SymbolMeaning Programs of Dynamic Damping
Control, refer to page 132. Programs of Servotronic, refer to
page 132. Drivelogic, refer to page 80: shift
modes and Drivelogic driving pro‐
grams. Views of the Head-up Display, refer
to page 98.
Configuring M Drive
The preassigned configurations can be individ‐
ually adjusted.
On the Control Display:
1."Settings"2."M Drive 1" or "M Drive 2"3.Select the desired setting option.4.Select the desired channel.
Individual settings are stored for the profile
currently in use.
If M Drive is activated, a change in the setting
on the Control Display is immediately adopted.
Activating/deactivating M Drive
Activating Press the corresponding button on the steer‐
ing wheel:
▷Activate M Drive 1.▷Activate M Drive 2.
If DSC OFF or MDM is set in M Drive, a mes‐
sage appears in the instrument cluster. This
message is confirmed by pressing the button
again.
Deactivating
Press the corresponding button on the steer‐
ing wheel.
Indicator lights▷Indicator lamp comes on: corre‐
sponding M Drive is activated.▷Indicator lamp flashes: M Drive
could not be activated. Antilock
braking system ABS or Dynamic
Stability Control DSC directly regu‐
late the driving stability.
Reactivate M Drive if indicator lamp
is no longer flashing.
Hints
If M Drive is activated, individual settings can
also be modified outside of M Drive, e. g. using
the buttons in the center console. This deacti‐
vates M Drive.
To reactivate all settings made for M Drive on
the Control Display, briefly press one of the fol‐
lowing buttons:
▷▷
To adopt the changed settings in M Drive,
press and hold the corresponding button.
Resetting M Drive
Individual settings can be reset to default val‐
ues.
1."Settings"2."M Drive 1" or "M Drive 2"3."Reset M Drive 1" or "Reset M Drive 2"4."Yes"
To cancel resetting: "No"
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Driving comfortVehicle 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.
Cruise control The concept The system maintains a preset speed via the
buttons on the steering wheel. The system brakes on downhill gradients if engine braking
is insufficient.
General information
Depending on the driving settings, the features
of the cruise control can change in certain
areas.
Hints Unfavorable conditions
Do not use the system if unfavorable
conditions make it impossible to drive at a con‐
stant speed, e.g.:▷On winding roads.▷In heavy traffic.▷On slippery roads, in fog, snow or rain, or
on a loose road surface.
Otherwise, you could lose control of the vehi‐
cle and cause an accident.◀
Controls
OverviewPress but‐
tonFunctionCruise control on/off, interrupt,
refer to page 134Store/maintain speed, refer to
page 135Resume speed, refer to
page 135rocker switch:
Maintain, store, change speed,
refer to page 135
Buttons are arranged according to vehicle's
series, optional features and country specifica‐
tions.
Switching on Press button on the steering wheel.
The marking in the speedometer is set to the
current speed.
The cruise control can be used.
Switch off Deactivated or interrupted system
With deactivated or interrupted system
use your brakes, steering and moves as usual
to avoid the chance of an accident.◀
Press button on the steering wheel.
▷If active: press twice.▷If interrupted: press once.Seite 134ControlsDriving comfort134
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VentilationFront ventilation▷Thumbwheel to vary the temperature, ar‐
row 1.
Toward blue: colder.
Toward red: warmer.
The set interior temperature for the driver
and passenger are not changed.▷Lever for changing the air flow direction,
arrow 2.▷Thumbwheels for opening and closing the
vents continuously, arrows 3.
Adjusting the ventilation
▷Ventilation for cooling:
Direct vent in your direction when vehicle's
interior is too hot.▷Draft-free ventilation:
Adjust the vent to let the air flow past you.
Parked-car ventilation
The concept The parked-car ventilation ventilates the vehi‐
cle interior and lowers its temperature, if
needed.
Operation can be performed via iDrive.
Functional requirements
Parked-car ventilation▷Using the preset reel-on time or when op‐
erated directly: any external temperature.
Open the vents to allow air to flow out.
Switching on/off directly
On the Control Display:
1."Settings"2."Climate"3."Activate comf. ventilation"
The symbol on the automatic climate con‐
trol flashes if the system is switched on.
The system continues to run for some time af‐
ter being switched off.
Preselecting the reel-on time On the Control Display:
1."Settings"2."Climate"3."Timer 1:" or "Timer 2:"4.Set the desired time.
Activating the reel-on time
On the Control Display:
1."Settings"2."Climate"3."Activate timer 1" or "Activate timer 2"
The symbol on the automatic climate con‐
trol lights up when the reel-on time is acti‐
vated.
The symbol on the automatic climate con‐
trol flashes when the system has been
switched on.
The system will only be switched on within the
next 24 hours. After that, it needs to be reacti‐
vated.
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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 179, 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 179, and adjust as necessary.
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Park Distance ControlPDC 136
Parked-car ventilation 149
Parked vehicle, condensa‐ tion 167
Parking aid, refer to PDC 136
Parking brake 73
Parking lights 101
Parts and accessories 7
Passenger side mirror, tilting downward 63
Pathway lines, rearview cam‐ era 140
PDC Park Distance Con‐ trol 136
Pedestrian detection, see Night Vision 120
Pedestrian warning with city braking function 117
Personal Profile 35
Personal Profile, exporting profiles 36
Pinch protection system, win‐ dows 47
Plastic, care 209
Power failure 198
Power windows 46
Pressure, tire air pres‐ sure 178
Pressure warning FTM, tires 112
Preventing Auto Start Stop 72
Profile, refer to Personal Pro‐ file 35
Programmable memory but‐ tons, iDrive 23
Protective function, win‐ dows 47
Push-and-turn switch, refer to Controller 18
R Radiator fluid 192 Radio-operated key, refer to
Remote control 34
Radio ready state 69
Radio, see user's manual for Navigation, Entertainment
and Communication
Rain sensor 76
Rear lights 197
Rearview camera 138
Rearview mirror 63
Rear window defroster 147
Recirculated-air mode 147
Recommended fuel grade 176
Recommended tire brands 182
Refueling 174
Remaining range 90
Remote control/key 34
Remote control, malfunc‐ tion 39
Remote control, univer‐ sal 150
Replacement fuse 199
Replacing bulbs, see Lamp replacement 195
Replacing parts 195
Replacing wheels/tires 182
Reporting safety defects 9
RES button, see Cruise con‐ trol 134
Reserve warning, refer to Range 90
Reset, Tire Pressure Monitor TPM 111
Residual heat, automatic cli‐ mate control 148
Retaining straps, securing cargo 169
Retreaded tires 182
Reversing lamp, bulb replace‐ ment 197
Roadside parking lights 102
Rollover protection sys‐ tem 109 RON recommended fuel
grade 176
Rope for tow-starting/ towing 204
Rubber components, care 209
S
Safe braking 166
Safety 7
Safety belt reminder for driv‐ er's seat and front passen‐
ger seat 60
Safety belts 59
Safety belts, care 209
Safety Package, refer to Ac‐ tive Protection 126
Safety systems, airbags 106
Saving fuel 170
Screen, refer to Control Dis‐ play 18
Screwdriver, see Onboard ve‐ hicle tool kit 195
Screw thread, refer to Screw thread for tow fitting, screw
thread for tow fitting 205
Sealant 183
Seat belts, refer to Safety belts 59
Seat heating, front 58
Seating position for chil‐ dren 66
Seat, mirror, and steering wheel memory 62
Seats 56
Seat ventilation, front 58
Selection list in instrument cluster 94
Selector lever 78
Selector lever position 78
Sensors, care 210
Sequential mode 79
Service and warranty 8 Seite 222ReferenceEverything from A to Z222
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