3.Mount the new wheel.4.Screw in at least two bolts crosswise.5.Screw in the remaining lug bolts.6.Fully tighten all lug bolts in a diagonal pat‐
tern.7.Lower the vehicle.8.Remove the jack.
Retightening the lug bolts
Retighten the lug bolts diagonally.
Checking that the lug bolts are tight
Always have the lug bolts checked with a
calibrated torque wrench as soon as possible to
ensure that they are tightened to the specified
torque. Otherwise, incorrectly tightened lug
bolts are a hidden safety risk. ◀
The tightening torque equals
103.3 lb ft/140 Nm.
Replace the defective tire as soon as possible
and have the new wheel balanced.
Vehicle battery Maintenance
The battery is maintenance-free, i.e., the elec‐
trolyte will last for the life of the battery in tem‐
perate climate conditions.
The service center will be happy to answer any
questions on the battery.
Battery replacement Use approved vehicle batteries
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. ◀
Have the vehicle battery registered by the serv‐
ice center after it is replaced to ensure that all comfort functions are available without restric‐
tions and that any associated Check Control
messages are no longer displayed.
Charging the battery
Note Do not connect the charger to the socket
Do not connect the battery charger to the
socket installed in the vehicle at the factory as
this could damage the battery. ◀
Only charge the battery in the vehicle when the
engine is switched off. Connections, refer to
page 254.
General information Ensure that the battery is sufficiently charged to
achieve the full battery life.
It may be necessary to charge the battery in
the following cases:▷When the vehicle is frequently used to
travel short distances.▷When the vehicle has not been driven for
more than one month.
Power failure
After a temporary power failure, some equip‐
ment will be restricted in its use and will need
to be reinitialized. In addition, certain individual
settings will be lost and must be updated:
▷Time and date: the values must be up‐
dated, refer to page 79.▷Radio: the stations need to be stored again,
refer to page 161.▷Onboard monitor: full functionality will be
restored after some time.
Indicator/warning lamps
Lights up red: the vehicle battery is no
longer being charged. Alternator mal‐
function.
Switch off all unnecessary electrical consumers.
Have the battery checked immediately.
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Toll roads, route 147
Tone 158
Tool kit, refer to Onboard ve‐ hicle tool kit 243
Tools, refer to Onboard vehi‐ cle tool kit 243
Torque, refer to Engine data 266
Towing another vehicle 256
Towing, being towed 256
Town/city, navigation 138
Tow-starting 256
TPM, refer to Tire Pressure Monitor 95
Traction control 102
Traffic bulletins, naviga‐ tion 151
Transmission– Overriding selector lever
lock in case of automatic
transmission with Step‐
tronic 73
Transmission lock
– Refer to Changing selector
lever positions 72
Transmission, manual 71
Transporting children safely 60
Treble, tone 158
Trip-distance counter, refer to Trip odometer 74
Triple turn signal activa‐ tion 68
Trip odometer 74
Trips, planning 145
Trunk
– Opening from the inside 38
Trunk lid
– Emergency activation, refer
to Unlocking manually 38
Trunk lid, refer to Tailgate 37
Trunk, refer to Cargo area 37
Turning lamps, refer to Adap‐ tive Light Control 87
Turn signal
– Indicator lamp 16Turn signal, bulb replace‐
ment 246
Turn signals 68
Turn signals, triple turn signal activation 68
U
Uniform Tire Quality Grading/ UTQG 228
Unintentional alarms, avoid‐ ing 42
Units– Average fuel consump‐
tion 78– Temperature 78
Units of measure, changing on
Control Display 78
Unlocking
– From the inside 37– From the outside 34– Tailgate 40– Without remote control, re‐
fer to Comfort Access 39
Update, software 178
Upholstery care 262
Upholstery material care 262
V
Vehicle
– Identification num‐
ber 182, 192
Vehicle battery 252
Vehicle, breaking in 124
Vehicle care 260
Vehicle care, refer to Care 259
Vehicle equipment 6
Vehicle paintwork, care 261
Vehicle storage 263
Vehicle, switching off 67
Vehicle wash 259
Ventilation
– Air conditioning 113
Version of the navigation
data 136
Video playback, iPhone 174
Video playback, snap-in adapter 174
Voice activation– Navigation 144
Voice activation, short com‐
mands 270
Voice activation system 26
Volume, setting 158
W Warning and indicator lamps 17
Warning messages, refer to Check Control 82
Warning signal volumes 158
Warning triangle 254
Washer/wiper system 68
Washer/wiper system, rain sensor 69
Washer/wiper system, washer fluid 70
Washer fluid 70
Washer fluid reservoir 70
Washing, vehicle 259
Welcome lamps 86
Wheel change 249
Wheels and tires 222
Wheels, changing 231
Wheels, Flat Tire Monitor FTM 93
Wind baffle, refer to Wind de‐ flector 47, 53
Wind deflector 47, 53
Windows
– Closing 42– Convenient operation 34– Opening 42
Windows, care 260
Windows, defrosting and de‐ fogging 109
Windshield
– Defrosting and defog‐
ging 109
Windshield, defrosting, refer
to Defrosting windows 109
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