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 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.Seite 98ControlsSafety98
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HintsDo not perform any work on the lighting
system
Have any work on the lighting system, includ‐
ing bulb replacement, performed only by a
service center. Due to the high voltage present
in the system, there is a danger of fatal injuries
if work is carried out improperly.◀
Irritation of the retina
Never look directly into the headlights or
their light sources for a lengthy period of time,
otherwise this could irritate your retinas.◀
Do not remove the covers
Do not remove the covers, and never
stare into the unfiltered light for several hours;
otherwise, irritation of the retina could result.◀
Changing wheels
Hints
When sealants are used, an immediate wheel
change when there is a loss of tire inflation
pressure in the event of a flat tire is unneces‐
sary.
Which is why no spare tire is available.
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 at the positions shown.
Vehicle battery
The vehicle battery has 12 volts. The battery
supplies the onboard electronics with energy.
Information about the high-voltage system, re‐
fer to page 146.
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.
Charge vehicle battery Do not use any charging devices
Do not charge the vehicle battery with an
external charging device; otherwise, there is a
risk of property damage, e. g., to the vehicle's
electronics.◀
Charging a discharged battery, refer to
page 152.
Power failure
After a temporary power loss, some equipment
needs to be newly initialized or individual set‐
tings updated, e.g.:Seite 173Replacing componentsMobility173
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Refueling 154
Remaining range 80
Remote control/key 36
Remote control, malfunc‐ tion 40
Remote control, univer‐ sal 125
Replacement fuse 174
Replacing wheels/tires 163
Reporting safety defects 10
RES button, see Cruise con‐ trol 109
Reserve warning, refer to Range 80
Reset, Tire Pressure Monitor TPM 97
Retreaded tires 163
Roadside parking lights 90
RON recommended fuel grade 157
Roofliner 17
Rubber components, care 182
S Safe braking 136
Safety 7
Safety belt reminder for driv‐ er's seat and front passen‐
ger seat 50
Safety belts 50
Safety belts, care 182
Safety of the high-voltage system 178
Safety systems, airbags 93
SAVE Battery, maintaining charging state 61
Screen, refer to Control Dis‐ play 18
Screw thread, see screw thread for tow fitting, screw
thread for tow fitting 178
Seat belts, refer to Safety belts 50
Seat heating, front 49 Seating position for chil‐
dren 54
Seats 48
Selection list in instrument cluster 83
Selector lever, Steptronic Sport transmission 68
Sensors, care 183
Service and warranty 8
Service requirements, Condi‐ tion Based Service
CBS 170
Service requirements, dis‐ play 80
Service, Roadside Assis‐ tance 176
Services, ConnectedDrive 6
SET button, see Cruise con‐ trol 109
Settings, locking/unlock‐ ing 44
Settings, mirrors 51
Settings on Control Dis‐ play 85
Shift paddles on the steering wheel 69
Side airbags 93
Side View 118
Signaling, horn 14
Signals when unlocking 45
Silent Start, electric drive readiness 60
Sitting safely 48
Size 186
Smallest turning radius 186
Snow chains 164
Socket 127
Socket, OBD Onboard Diag‐ nostics 171
SOS button 175
Spare fuse 174
Specified engine oil types 167
Speed, average 84
Speed limit detection, com‐ puter 84 Speed limiter, display 82
Speed Limit Information 82
Speed warning 85
Split screen 23
Sport program, transmis‐ sion 69
Stability control systems 105
Standard charging cable, see Level 1 charging cable 147
Standard charging, see Level 1 Charging 150
Standing air conditioning, re‐ mote control 45
Start/Stop button 58
Start function during malfunc‐ tion 37
Starting the combustion en‐ gine 60
Stationary climate con‐ trol 123
Status control display, tires 96
Status information, iDrive 22
Status of Owner's Manual 7
Steering wheel, adjusting 53
Steptronic Sport transmis‐ sion 67
Storage compartments 130
Storage compartments, loca‐ tions 130
Storage, tires 164
Storing the vehicle 183
Summer tires, tread 162
Sun visor 127
Supplementary text mes‐ sage 78
Surround View 113
Switch for Dynamic Driv‐ ing 107
Switch, refer to Cockpit 14
Symbols 6
Symbols in the status field 22
SYNC program, automatic cli‐ mate control 121 Seite 196ReferenceEverything from A to Z196
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