DSC Dynamic Stability Control is deactivated
or DTC Dynamic Traction Control is activated
Dynamic Stability Control DSC is
switched off or Dynamic Traction Con‐
trol DTC is switched on.
For additional information, refer to Dynamic
Stability Control DSC, refer to page 116, and
Dynamic Traction Control DTC, refer to
page 117.
Flat Tire Monitor FTM The Flat Tire Monitor signals a loss of
tire inflation pressure in a tire.
Reduce your speed and stop cautiously.
Avoid sudden braking and steering maneuvers.
For additional information, refer to Flat Tire
Monitor, refer to page 107.
Tire Pressure Monitor TPM Illuminated: the Tire Pressure Monitor
signals a loss of tire inflation pressure in
a tire.
Reduce your speed and stop cautiously. Avoid
sudden braking and steering maneuvers.
Flashing and then continuously illuminated: no
flat tire or loss of tire inflation pressure can be
detected.▷Interference through systems or devices
with the same radio frequency: After leav‐
ing the area of the interference, the system
automatically becomes active again.▷TPM was unable to complete the reset. Re‐
set the system again.▷A wheel without TPM electronics is
mounted: Have it checked by a dealer’s
service center or another qualified service
center or repair shop as needed.▷Malfunction: have the system checked by a
dealer’s service center or another qualified
service center or repair shop.For additional information, refer to Tire Pres‐
sure Monitor, refer to page 103.
Steering system Steering system in some cases not
working.
Have the steering system checked by a
dealer’s service center or another qualified
service center or repair shop.
Engine functions Have the vehicle checked by a dealer’s
service center or another qualified serv‐
ice center or repair shop.
For additional information, refer to On-board
Diagnostics socket, refer to page 203.
Rear fog lamp Rear fog lights are activated.
For additional information, refer to Rear
fog lights, refer to page 98.
Green lights Turn signal Turn signal switched on.
Unusually rapid flashing of the indicator
lamp indicates that a turn signal bulb
has failed.
For additional information, refer to Turn signal,
refer to page 67.
Parking lights, headlight control Parking lights or headlights are acti‐
vated.
For additional information, refer to
Parking lights/low beams, headlight control, re‐
fer to page 95.Seite 79DisplaysCONTROLS79
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WARNING
A damaged regular tire with low or miss‐
ing tire inflation pressure impacts handling,
such as steering and braking response. Run-flat
tires can maintain limited stability. There is risk
of an accident. Do not continue driving if the
vehicle is not equipped with run-flat tires. Ob‐
serve the hints on run-flat tires and continued
driving with these tires. ◀
A low tire inflation pressure might turn on DSC
Dynamic Stability Control.
Actions in the event of a flat tire
Normal tires1.Identify the damaged tire.
Do this by checking the air pressure in all
four tires.
The tire pressure gauge of the Mobility Sys‐
tem, refer to page 190, can be used for this
purpose.
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.
If identification of flat tire damage is not
possible, please contact a dealer’s service
center or another qualified service center or
repair shop.2.Fix the flat tire using the Mobility System,
refer to page 190.
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 replaced if needed.
Run-flat tires Maximum speed
You may 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
shown to be correct, it is possible that the
Tire Pressure Monitor did not perform a re‐
set. Then perform the reset.
Possible driving distance with complete loss of
tire inflation pressure:
The possible driving distance after a loss of tire
inflation pressure depends on cargo load, driv‐
ing style and road conditions.
A vehicle with an average load has a possible
driving range of approx. 50 miles/80 km.
A vehicle with a damaged tire reacts differently,
e.g., it has reduced lane stability during brak‐
ing, a longer braking distance and different
self-steering properties. Adjust your driving
style accordingly. Avoid abrupt steering ma‐
neuvers or driving 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 shorter or longer de‐
pending on the driving speed, road conditions,
external temperature, cargo load, etc.
WARNING
Your vehicle handles differently when a
run-flat tire is damaged and has low or missing
tire inflation pressure, for example, your lane
stability is reduced when braking, braking dis‐
tances are longer and the self-steering proper‐
ties will change. There is risk of an accident.
Drive moderately and do not exceed a speed of
50 mph/80 km/h. ◀
Seite 105SafetyCONTROLS105
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Final tire failure
Vibrations or loud noises while driving can indi‐
cate the final failure of a tire.
Reduce speed and stop; otherwise, pieces of
the tire could come loose and cause an acci‐
dent.
Do not continue driving. Contact a dealer’s
service center or another qualified service cen‐
ter or repair shop.
Required inflation pressure check
message
A Check Control message is displayed in the fol‐
lowing 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 reset
has not been carried out, e.g., a flat tire is re‐
ported though tire inflation pressures are cor‐
rect.
The tire inflation pressure depends on the tire's
temperature. Driving or exposure to the sun
will increase the tire's temperature, thus in‐
creasing the tire inflation pressure. The tire in‐
flation pressure is reduced when the tire tem‐ perature falls again. These circumstances may
cause a warning when temperatures fall very
sharply.
The system cannot indicate sudden serious tire
damage caused by external circumstances.
Malfunction
The yellow warning lamp flashes and
then lights up continuously. A Check
Control message is displayed. No flat
tire or loss of tire pressure can be detected.
Examples and recommendations in the follow‐
ing situations:▷A wheel without TPM electronics, for exam‐
ple an emergency wheel, is mounted: Have
it checked by a dealer’s service center or
another qualified service center or repair
shop as needed.▷Malfunction: Have system checked by a
dealer’s service center or another qualified
service center or repair shop.▷TPM was unable to complete the reset. Re‐
set 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 sys‐
tem (TPMS) that illuminates a low tire pressure
telltale when one or more of your tires is signifi‐
cantly 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 pressure. Driving
on a significantly under-inflated tire causes the
tire to overheat and can lead to tire failure. Un‐
der-inflation also reduces fuel efficiency and
Seite 106CONTROLSSafety106
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Wheels and tiresVehicle features and op‐
tions
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 sys‐
tems. The respectively applicable country provi‐
sions must be observed when using the respec‐
tive features and systems.
Tire inflation pressure Safety informationThe 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
WARNING
A tire with low or missing tire inflation
pressure impacts handling, such as steering
and braking response. There is risk of an acci‐
dent. Regularly check the tire inflation pressure,
and correct it as needed, for example twice a
month and before a long trip. ◀
Tires have a natural, consistent loss of tire infla‐
tion pressure.
Tires heat up while driving, and the tire inflation
pressure increases along with the tire's temper‐
ature. The tire inflation pressure specifications
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 0.1 bar.
For Flat Tire Monitor: after correcting the tire
inflation pressure, reinitialize the Flat Tire Moni‐
tor.
For Tire Pressure Monitor: after correcting the
tire inflation pressure, reset the Tire Pressure
Monitor.▷Reinitialize the Flat Tire Monitor.▷Reinitialize the Tire Pressure Monitor.
Checking the inflation pressure of the
emergency wheel
Located behind the bumper on the underside
of the vehicle is an opening for checking the
tire inflation pressure.
Pressure specifications
The tire inflation pressure table, refer to
page 181, contains all tire inflation pressure
specifications for the specified tire sizes at the
ambient temperature. The tire inflation pres‐
sure values apply to tire sizes approved by the
manufacturer of the vehicle for the vehicle
type.
To identify the correct tire inflation pressure,
please note the following:
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Recommended fuelgrade 178
Recommended tire brands 189
Refueling 176
Remaining range 82
Remote control/key 34
Remote control, blocking 35
Remote control, malfunc‐ tion 39
Remote control, replacing the battery 34
Remote control, univer‐ sal 145
Replacement fuse 215
Replacing parts 204
Replacing the battery, remote control 34
Replacing wheels/tires 188
Reporting safety malfunc‐ tions 10
RES CNCL button, see camera- based cruise control 120
RES CNCL button, see Cruise control 126
Reserve warning, see Range 82
Reset, Tire Pressure Monitor TPM 104
Retaining straps, securing cargo 164
Retreaded tires 189
Roadside parking lights 96
RON recommended fuel grade 178
Roofliner 17
Roof load capacity 229
Roof-mounted luggage rack 164
RSC Run Flat System Compo‐ nent, see Run-flat tires 190
Rubber components, care 223
Run-flat tires 190 S
Safe braking 161
Safety belt reminder for driv‐ er's seat and front passenger
seat 52
Safety belts 51
Safety belts, care 224
Safety switch, windows 46
Safety systems, airbags 100
Saving fuel 166
Screen, refer to Control Dis‐ play 18
Screwdriver 204
Sealant 190
Seat belts, see Safety belts 51
Seat heating, front 51
Seating position for chil‐ dren 58
Seats 49
Selection list in instrument cluster 85
Selector lever, Steptronic transmission 72
Sensors, care 224
Service and warranty 8
Service requirements, Condi‐ tion Based Service CBS 202
Service requirements, dis‐ play 82
SET button, see camera-based cruise control 120
SET button, see Cruise con‐ trol 126
Settings, locking/unlocking 43
Settings, mirrors 55
Settings on Control Display 88
Shift paddles on the steering wheel 73
Shift point indicator, Head-Up Display 92
Side airbag 100
Signaling, horn 14
Signals when unlocking 43
Sitting safely 49
Size 228 Slide/tilt glass roof 47
Snow chains 193
Socket 149
Socket, OBD Onboard Diag‐ nostics 203
Spare fuse 215
Spare tire, see Emergency wheel 212
Speed, average 86
Speed limit detection, on‐ board computer 86
Speed limiter, display 83
Speed Limit Information 83
Speed warning 88
Split screen 23
Sport displays 87
Sport displays, Head-up Dis‐ play 92
Sport instruments, cockpit 93
SPORT program, Dynamic Driving Control 118
Sport program, transmis‐ sion 73
Stability control systems 116
Standard view, Head-up Dis‐ play 91
Start/stop, automatic func‐ tion 64
Start/Stop button 62
Start function during malfunc‐ tion 35
Starting the engine 63
Status control display, tires 104
Status information, onboard monitor 23
Status of Owner's Manual 7
Steering wheel, adjusting 57
Steptronic Sport transmission, see Steptronic transmis‐
sion 72
Steptronic transmission 72
Stopping the engine 63
Storage compartments 153
Storage, tires 189
Storing the vehicle 224 Seite 244REFERENCEEverything from A to Z244
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