Reset the Tire Pressure Monitor.5.Check to make sure the lug bolts are tight
with a calibrated torque wrench.6.Replace the damaged tires as soon as pos‐
sible.
Driving with emergency wheel
WARNING
The emergency wheel has particular di‐
mensions. When driving with an emergency
wheel, changed driving properties may occur
at higher speeds, e.g. reduced lane stability
when braking, longer braking distance and
changed self-steering properties in the limit
area. There is risk of an accident. Drive moder‐
ately and do not exceed a speed of
50 mph/80 km/h.◀
Vehicle battery Maintenance
The battery is maintenance-free.
The added amount of acid is sufficient for the
service life of the battery.
More information about the battery can be re‐
quested from a dealer’s service center or an‐
other qualified service center or repair shop.
Battery replacement CAUTION
Vehicle batteries that are not compatible
can damage vehicle systems and impair vehi‐
cle functions.There is risk of property damage.
Information on the compatible vehicle batteries
is available at your dealer's service center.◀
After a battery replacement, the manufacturer
of your vehicle recommends that the vehicle
battery be registered on the vehicle by a
dealer’s service center or another qualified
service center or repair shop to ensure that all
comfort features are fully available and that any
Check Control messages of these comfort fea‐
tures are no longer displayed.
Charging the battery
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.▷Steptronic transmission: when parked for
long periods of time in selector lever posi‐
tion D, R or N.
Information
CAUTION
Battery chargers for the vehicle battery
can work with high voltages and currents,
which means that the 12V on-board network
can be overloaded or damaged. There is risk of
property damage. Only connect battery charg‐
ers for the vehicle battery to the starting aid
terminals in the engine compartment.◀
Starting aid terminals
In the vehicle, only charge the battery via the
starting aid terminals, refer to page 219, in the
engine compartment with the engine off.
Power failure
After a temporary power loss, some equipment
needs to be newly initialized or individual set‐
tings updated, e. g.:
▷Seat and mirror memory: store the posi‐
tions again.▷Time: update.▷Date: update.Seite 215Replacing componentsMobility215
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Pinch protection system,glass sunroof 51
Pinch protection system, win‐ dows 49
Plastic, care 224
Power failure 215
Power windows 48
Prescribed engine oil types 201
Pressure, tire air pres‐ sure 186
Pressure warning, tires 109
Profile, see Personal Pro‐ file 35
Programmable memory but‐ tons, iDrive 24
Protective function, glass sunroof 51
Protective function, win‐ dows 49
Push-and-turn switch, see Controller 19
R Radiator fluid 202
Radio 6
Radio-operated key, see Re‐ mote control 34
Radio ready state 68
Rain sensor 75
Rear lights 211
Rear seat backrest tilt 55
Rear seats 55
Rear socket 156
Rearview camera 137
Rearview mirror 60
Rear window de‐ froster 145, 148
Recirculated-air filter 148
Recirculated-air mode 145, 147
Recommended fuel grade 184
Recommended tire brands 191 Refueling 182
Remaining range 86
Remote control/key 34
Remote control, malfunc‐ tion 38
Remote control, univer‐ sal 151
Replacement fuse 216
Replacing parts 206
Replacing wheels/tires 190
Reporting safety malfunc‐ tions 10
RES button, see Camera- based cruise control,
ACC 126
RES button, see Cruise con‐ trol 132
Reserve warning, see Range 86
Reset, Tire Pressure Monitor TPM 106
Retaining straps, securing cargo 173
Retreaded tires 191
Roadside parking lights 98
RON recommended fuel grade 184
Roofliner 17
Roof load capacity 229
Roof-mounted luggage rack 173
Rope for tow-starting/ towing 220
RSC Run Flat System Com‐ ponent, see Run-flat
tires 192
Rubber components, care 224
Run-flat tires 192
S Safe braking 170
Safety belt reminder for driv‐ er's seat and front passen‐
ger seat 57 Safety belts 56
Safety belts, care 224
Safety switch, windows 49
Safety systems, airbags 102
Saving fuel 175
Screen, see Control Dis‐ play 18
Screwdriver, see Onboard ve‐ hicle tool kit 206
Screw thread, refer to Screw thread for tow fitting, screw
thread for tow fitting 221
Sealant 192
Seat and mirror memory 59
Seat belts, see Safety belts 56
Seat heating, front 55
Seating position for chil‐ dren 64
Seats 52
Seats, front 52
Seats, rear 55
Selection list in instrument cluster 90
Selector lever, Steptronic transmission 77
Sensors, care 225
Service and warranty 8
Service requirements, Condi‐ tion Based Service
CBS 204
Service requirements, dis‐ play 87
Services, ConnectedDrive 6
Servotronic 123
SET button, see Camera- based cruise control,
ACC 126
SET button, see Cruise con‐ trol 132
Settings, locking/unlock‐ ing 45
Settings on Control Dis‐ play 93
Settings, storing for seat, mir‐ ror 59 Seite 238ReferenceEverything from A to Z238
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