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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Lights up yellow: the battery charge
level is very low, the battery is old, or it
is not securely connected.
Charge the battery by taking a long drive or us‐
ing an external charger. If the indicators appear
again, have the battery checked as soon as
possible.
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.
Fuses Replacing fuses
Never attempt to repair a blown fuse and
do not replace a defective fuse with a substi‐ tute of another color or amperage rating; this
could lead to a circuit overload, ultimately re‐
sulting in a fire in the vehicle. ◀
Fuses should be replaced by the service center.
Information on the fuses can be found on the
inside of the covers.
In the engine compartment
Opening the cover
Press the snap lock.
In interior
On the right side of the footwell.
Opening the cover
Push out at the recess.
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Control systems, driving stabil‐ity 101
Convenient operation– Windows 34
Convertible top 43
Convertible top
– Manual 48– Mechanical 48
Coolant temperature 75
Cooling function, switching on and off 112
Cooling, maximum 111
Cornering Brake Control, CBC 101
Corrosion on brake discs 126
Cradle for telephone or mobile phone, refer to Snap-in
adapter 202
Cruise control 105
Cupholders 114
Current fuel consumption 76
Current location, storing 140
Curve lights, refer to Adaptive Light Control 87
Cylinders, number of, refer to Engine data 266
D
Dashboard lighting, refer to Instrument lighting 88
Dashboard, refer to Cock‐ pit 14
Dashboard, refer to Dis‐ plays 16
Data, technical 266
Date
– Date format 80– Setting 79
Daytime running lights 86
Decorative trim, care 262
Defogging windows 109
Defroster
– Rear window 109, 112
Defrosting windows 109
Defrost setting, refer to De‐ frosting windows 109
Destination entry via the ad‐
dress book 140
Destination guidance with in‐ termediate destinations 145
Destination input, naviga‐ tion 138
Digital radio 161
Dip stick, engine oil 238
Directional indicators, refer to Turn signals 68
Displacement, refer to Engine data 266
Display lighting, refer to In‐ strument lighting 88
Displays 16
Displays and controls 14
Displays, care 263
Displays, cleaning 263
Displays, refer to Instrument cluster 16
Disposal– Remote control battery 41
Distance warning, refer to
Park Distance Control
PDC 106
Door key, refer to Remote control with integrated
key 32
Door lock 36
Door lock, confirmation sig‐ nals 35
Doors, manual operation 37
Doors, unlocking and locking
– Confirmation signals 35– From the inside 37– From the outside 34
DOT Quality Grades 228
Drive-off assistant, refer to Hill drive-off assistant 103
Driving notes, breaking in 124
Driving off on hills, refer to Hill drive-off assistant 103
Driving stability control sys‐ tems 101
Driving tips, refer to Driving notes 124
Dry air, refer to Cooling func‐
tion 112
DSC Dynamic Stability Con‐ trol 101
DTC Dynamic Traction Con‐ trol 102
DTMF suffix dialing 187, 199
Dynamic destination guid‐ ance 154
Dynamic Stability Control DSC 101
Dynamic Traction Control DTC 102
E
Electrical convertible top 44
Electrical malfunction– Convertible top 45, 52– Door lock 37– Fuel filler flap 218– Tailgate 38
Electronic brake-force distri‐
bution 101
Electronic Stability Program ESP, refer to Dynamic Stabil‐
ity Control DSC 101
Emergency activation
– Automatic transmission, re‐
fer to Overriding selector
lever lock 73
Emergency activation, refer to
Manual activation
– Tailgate 38
Emergency operation, fuel
filler flap, unlocking man‐
ually 218
Emergency operation, refer to
Manual operation
– Convertible top 45, 52– Door lock 37
Energy, saving, refer to Saving
fuel 131
Engine, breaking in 124
Engine compartment 236
Engine oil, adding 238
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Reading out loud 210
Rear fog lamp 88
Rear fog lamp, bulb replace‐ ment 247
Rear fog lamps, indicator lamp 17
Rear lamps, refer to Tail lamps 247
Rear spoiler 103
Rearview mirror, refer to Mir‐ rors 58
Rear window de‐ froster 109, 112
Recirculated air mode 109, 111
Recommended tire brands 231
Redialing 188, 200
Releasing, refer to Unlock‐ ing 40
Remaining range for service, refer to Service require‐
ments 81
Remaining range, refer to Range 76
Reminders 210
Remote control– Battery replacement 41– Comfort Access 39– Malfunctions 35, 41– Tailgate 35
Remote control, removing
from the ignition lock 65
Remote control, service data 241
Remote inquiry 187, 199
Replacement remote con‐ trol 32
Replacing wheels/tires 231
Reporting safety defects 9
Reserve warning, refer to Fuel gauge 75
Reservoir for washer fluid, re‐ fer to Washer fluid reser‐
voir 70
Restraining systems
– Refer to Safety belts 56Restraint systems for chil‐
dren 60
Retreaded tires 231
Reverse gear, manual trans‐ mission 71
Road, avoiding 147
Road detour 147
Roadside Assistance 254
Roadside parking lamp, bulb replacement 246
Roadside parking lamps 86
RON gasoline quality 220
RON, refer to Fuel quality 220
Route 148
Route criteria, route 147
Route, displaying 148
Route section, bypassing 148
RPM, refer to Engine data 266
Rubber seals, care 262
Run-flat tires 232
Run-flat tires– Flat tire 94
Run-flat tires, tire inflation
pressure 222
Running lights, refer to Park‐ ing lamps/low beams 85
S Safe braking 126
Safety 7
Safety belts 56
Safety belts
– Damage 57
Safety belts, care 262
Safety belts, indicator/warning lamp 57
Safety belts, reminder 57
Safety systems
– Safety belts 56
Safety systems, airbags 90
Satellite radio 162
Saving fuel 131
Scale, changing during navi‐ gation 151
Screen, see Control Display 20
Seat adjustment– Manual 54
Seat belts
– Refer to Safety belts 56
Seat heating 56
Seats
– Adjusting 54– Heating 56– Sitting safely 54
Selector lever, automatic
transmission with Step‐
tronic 72
Selector lever lock, overrid‐ ing 73
Selector lever lock, refer to Changing selector lever posi‐
tions, Shiftlock 72
Selector lever positions, auto‐ matic transmission with
Steptronic 72
Service and warranty 8
Service data in the remote control 241
Service interval display, refer to Condition Based Service
CBS 241
Service interval display, refer to Service requirements 81
Service requirements 81
Service requirements, CBS Condition Based Service 241
Settings
– Changing on the Control Dis‐
play 80– Language 80
Settings and information 77
Settings, configuring, refer to Personal Profile 33
Setting the clock, 12h/24h for‐ mat 79
Shifting
– Automatic transmission with
Steptronic 72
Shifting, manual transmis‐
sion 71
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