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 186.
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 70.▷Radio: the stations need to be stored again,
refer to page 128.
Disposing of old batteries
Have used batteries disposed of by the
service center after they are replaced or
take them to a recycling center.
Maintain the battery in an upright position for
transport and storage. Secure the battery so
that it does not tip over during transport.
Seite 184MobilityReplacing components184
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Shift paddles on the steeringwheel 63
Side airbags 80
Side windows, refer to Win‐ dows 31
Slot for remote control 55
Snap-in adapter, mobile phone 145
Socket, OBD Onboard Diagno‐ sis 174
Special equipment, series equipment 6
Speed, average 67
Speedometer 14
Speed, with winter tires 164
Sport button 91
Sport program, automatic transmission with Step‐
tronic 63
Stability control systems 89
Start/Stop button 55
Start/Stop button, starting the engine 56
Start/Stop button, switching off the engine 57
Starting the engine 56
Start problems, refer to Jump- starting 186
Steering wheel 49
Steering wheel– Shift paddles 63
Steering wheel, adjusting 49
Steering wheel lock 55
Stopping, engine 57
Storage, tires 164
Storing the vehicle 195
Summer tires, refer to Wheels and tires 154
Summer tires, tread 161
Switches, refer to Cockpit 12
Switching off, engine 57
Switching off, vehicle 57
Symbols 6
T
Tachometer 66
Tailgate– Comfort Access 29– Emergency activation 28– Emergency unlocking 28– Opening/closing 27– Opening from the out‐
side 27– Unlocking manually 27– Unlocking with remote con‐
trol 24
Tail lamps 179
Tank gauge, refer to Fuel gauge 66
Technical changes, refer to Safety 6
Technical data 210
Telephone 138
Temperature
– Air conditioner 97– Automatic climate con‐
trol 100
Temperature, coolant, refer to
Coolant temperature 66
Temperature display
– External temperature 65– External temperature warn‐
ing 65– Setting the units 69
Temperature warning 65
Theft alarm system, refer to Alarm system 31
Time
– Setting the time 70
Tire age 162
Tire identification marks 160
Tire inflation pressure 154
Tire inflation pressure
– Pressure loss 84
Tire pressure monitor, refer to
Flat Tire Monitor 83
Tire Pressure Monitor TPM
– System limits 85– System reset 86– Warning lamp 86
Tire Quality Grading 160
Tires– Flat tire 84– Inflation pressure 154– Inflation pressure loss 86– Pressure monitoring, refer to
Tire Pressure Monitor
TPM 85
Tires, breaking in 112
Tires, changing 163
Tires, condition 161
Tires, damage 162
Tire size 160
Tires, minimum tread 162
Tires, retreaded tires 163
Tires, storage 164
Tire tread 161
Tool kit, refer to Onboard ve‐ hicle tool kit 175
Tools, refer to Onboard vehi‐ cle tool kit 175
Torque, refer to Engine data 210
Towing another vehicle 188
Towing, being towed 188
Tow-starting 188
TPM, refer to Tire Pressure Monitor 85
Traction control 90
Transmission
– Overriding selector lever
lock in case of automatic
transmission with Step‐
tronic 64
Transmission lock
– Refer to Changing selector
lever positions 62
Transmission, manual 61
Transporting children safely 50
Trip-distance counter, refer to Trip odometer 65
Triple turn signal activa‐ tion 58
Trip odometer 65
Trunk
– Opening from the inside 27Seite 221Everything from A to ZReference221
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