Status control displayTire and system status are indicated by the
color of the wheels and a text message on the
Control Display.
All wheels green System is active and will issue a warning rela‐
tive to the tire inflation pressures stored during
the last reset.
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.
Wheels, gray The 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 possibly
tire temperatures. It shows the actual values
read; they may vary depending on driving style or weather conditions.
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.
A low tire inflation pressure might turn on DSC
Dynamic Stability Control.
Required tire inflation pressure check
message
A Check Control message is displayed in the
following situations
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▷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, such as
an emergency wheel, is mounted: 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.
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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.
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.Seite 112ControlsSafety112
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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.
Cruise controlThe 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
At a glancePress but‐
tonFunctionCruise control on/off, interrupt,
refer to page 135Store/maintain speed, refer to
page 136Resume speed, refer to
page 136Rocker reel:
Maintain, store, change speed,
refer to page 136
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 135Driving comfortControls135
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The cooling function is switched on automati‐
cally with the AUTO program.
Intensity of the AUTO program
With the AUTO program activated, the auto‐
matic intensity control can be changed:
Press the left or right side of the but‐
ton: decrease or increase the inten‐
sity.
The selected intensity is shown on the display
of the automatic climate control.
Temperature Turn the ring to set the desired
temperature.
The automatic climate control achieves this
temperature as quickly as possible, if needed
by using the maximum cooling or heating ca‐
pacity, and then keeps it constant.
Do not rapidly switch between different tem‐
perature settings. The automatic climate con‐
trol will not have sufficient time to adjust the
set temperature.
Manual air distribution
The air distribution can be adjusted to individ‐
ual needs.
Press button repeatedly to select a
program:▷Upper body region.▷Upper body region and footwell.▷Footwell.
Air flow, manual
To manually adjust air flow turn off AUTO pro‐
gram first.
Press the left or right side of the but‐
ton: decrease or increase air flow.
The selected air flow is shown on the display of
the automatic climate control.
Switching the system on/off
Switch off Press and hold the left button.
Switching on Press any button except:▷Left side of Air volume button.▷Seat heating.
Maximum cooling
Press button.
The system is set to the lowest tem‐
perature, maximum air flow and air circulation
mode.
Air flows out of the vents to the upper body re‐
gion. The vents need to be open for this.
Air is cooled as quickly as possible:
▷At an external temperature of approx.
32 ℉/0 ℃.▷When the engine is running.
Parked-car ventilation
The concept The parked-car ventilation ventilates the vehi‐
cle interior and lowers its temperature, if
needed.
The system can be switched on and off di‐
rectly or by using two preset departure times.
The reel-on time is automatically determined
based on the temperature. The system
promptly switches on before the selected de‐
parture time.
Operation can be performed via iDrive.
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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.
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.◀
Also check the tire inflation pressure of the
emergency wheel in the cargo area regularly,
and correct it as needed.
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 195, 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 195, and adjust as necessary.
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Check for secure seating of the lug
bolts
For safety reasons, have the secure seat‐
ing of the lug bolts checked with a cali‐
brated torque wrench; otherwise, a safety
hazard results from incorrectly tightened
lug bolts.◀2.Stow the defective wheel in the cargo area.
The defective wheel cannot be stored un‐
der the cargo floor panel because of its
size.3.Check tire inflation pressure at the next op‐
portunity and correct as needed.4.Reinitialize the Flat Tire Monitor.
Reset the Tire Pressure Monitor.5.Replace the damaged tires as soon as pos‐
sible.
Driving with emergency wheel
Watch the speed when driving with the
emergency wheel
Drive conservatively and do not exceed a
speed of 50 mph/80 km/h; otherwise, changed
driving characteristics such as reduced lane
stability while braking, extended braking dis‐
tance and changed self-steering properties in
the limit area.◀
Mount one emergency wheel only
Only a single emergency wheel may be
mounted. Reinstall wheels and tires of the
original size as quickly as possible; otherwise,
there is a safety risk.◀
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 222, in the
engine compartment with the engine off.
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Parallel parking assistant 146
Park Distance Control PDC 137
Parked-car ventilation 155
Parked vehicle, condensa‐ tion 179
Parking aid, refer to PDC 137
Parking assistant 146
Parking brake 72
Parking lights 101
Parking with Automatic Hold 73
Passenger side mirror, tilting downward 60
Pathway lines, rearview cam‐ era 141
PDC Park Distance Con‐ trol 137
Pedestrian detection, see Night Vision 119
Pedestrian warning with city braking function 117
Personal Profile 35
Personal Profile, exporting profiles 36
Pinch protection system, glass sunroof 50
Pinch protection system, win‐ dows 48
Plastic, care 227
Power failure 219
Power sunroof, glass 49
Power windows 48
Pressure, tire air pres‐ sure 194
Pressure warning FTM, tires 112
Preventing Auto Start Stop 71
Profile, refer to Personal Pro‐ file 35
Programmable memory but‐ tons, iDrive 24
Protective function, glass sunroof 50 Protective function, win‐
dows 48
Push-and-turn reel, refer to Controller 18, 19
R Radiator fluid 209
Radio-operated key, refer to Remote control 34
Radio ready state 68
Radio, see user's manual for Navigation, Entertainment
and Communication
Rain sensor 76
Rear automatic climate con‐ trol 154
Rear center armrest 170
Rear cooler 162
Rear drink holder 171
Rear lights 216
Rear seats 55
Rearview camera 140
Rearview mirror 59
Rear window defroster 152
Recirculated-air mode 152
Recommended fuel grade 192
Recommended tire brands 199
Refueling 190
Remaining range 90
Remote control/key 34
Remote control, malfunc‐ tion 38
Remote control, univer‐ sal 157
Replacement fuse 219
Replacement wheel 216
Replacing parts 213
Replacing wheels/tires 199
Reporting safety defects 9
RES button, see Cruise con‐ trol 135
Reserve warning, refer to Range 90 Reset, Tire Pressure Monitor
TPM 110
Residual heat, automatic cli‐ mate control 153
Retaining straps, securing cargo 182
Retreaded tires 199
Roadside parking lights 102
Roller sunblinds 49
RON recommended fuel grade 192
Roofliner 17
Roof load capacity 233
Roof-mounted luggage rack 183
Rope for tow-starting/ towing 223
Rubber components, care 227
S
Safe braking 178
Safety 7
Safety belt reminder for driv‐ er's seat and front passen‐
ger seat 56
Safety belts 55
Safety belts, care 228
Safety Package, refer to Ac‐ tive Protection 127
Safety reel, windows 49
Safety systems, airbags 106
Saving fuel 185
Screen, refer to Control Dis‐ play 18
Screwdriver, see Onboard ve‐ hicle tool kit 213
Screw thread, see screw thread for tow fitting, screw
thread for tow fitting 224
Sealant 200
Seat belts, refer to Safety belts 55
Seat heating, front 54
Seat heating, rear 55 Seite 242ReferenceEverything from A to Z242
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