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Adaptive Air Suspension
Adaptive Air Suspension and
Damping
A pplies to veh icles: with Adaptive Air Suspens ion
Description
Adaptive Air Suspension and damping can be regulated
and they adapt automatically to a request from the driver
and the driving situation at the time.
Adaptive Air Suspension is an electronically controlled springing
and damping system . Th is chassis system makes it easier on the
driver by adapting to the particular situation through imperceptible
control processes.
The
Adaptive Air Suspension component regulates ground clear
ance depending on vehicle speed, load condition and driver input.
When the system is in automatic mode, accelerating to a speed above a predetermined limit will make the vehicle lower itself. On
the other hand, driving more slowly results in the vehicle raising
again at specific speeds.
The
damping component provides individual control of the
damping forces. For example, with damping characteristics set to
provide greater comfort, damping is set somewhat harder for a brief
period only as required, for example, when going around a curve or
over rough road surfaces as well as when braking.
Settings
Adaptive Air Suspension provides the driver with the opportunity to
set the chassis characteristics also to their individual preference.
With the driving modes
standard, automatic and dynamic the driver
has three chassis settings available, ranging from comfort to sporty .
In addition,
lift provides a fourth mode which can be selecting for
driving over poor stretches of road :::::,
page 183, "Chassis controls". The modes are set in
MMI:::::,
page 183.
& WARNING
The height of the parked vehicle can change due to temperature
fluctuations or changes in load.
0 Note
• Whenever you park your vehicle, always make sure there is
adequate clearance above and below the vehicle. The height of the parked vehicle can change as the result of temperature fluctuations,
changes in load condition and changes in the driving mode (ground
clearance!.
• If the vehicle is being transported (e.g. by tow truck, train, ship,
etc.), mount the tie -down chains/cables over the running surface
(circumference) of the tires . Never secure the vehicle by the axle, the
suspension struts or the front or rear towline eye. For technical
reasons, the pressure in the suspension struts may change during
the transport, which could result in the vehicle no longer being
secured properly.
• To prevent damage to the vehicle underbody, remember that
your vehicle is not an off-road vehicle, even in the "lift" mode. The
ground clearance is insufficient for this type of operation.
• If you are going to tow a trailer, you must activate the trailer oper
ation mode :::::,
page 184.
[ i] Tips
Before you raising your vehicle using the vehicle jack (for example,
when changing a flat tire) you must activate the jacking mode
=> page 184. •
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The ignition must be switched on to set the driving modes.
- Press the !CARI function button. The main menu
Adaptive Air Suspension appears=>
page 183, fig. 182.
- Select the desired mode with the control knob.
Please note that not every driving mode can be selected in every
driving situation. For example, it is not possible to switch to "lift"
mode at speeds above 50 mph (80 km/h). This mode is then shown
greyed out in the MMI display.
For additional information on the driving modes=>
page 183,
"Chassis controls". •
Applies to vehicles: with Adaptive Air Suspension
Jacking mode when changing a flat tire
This mode must be activated before raising the vehicle
with a vehicle jack.
Fig. 183 MMI display :
Activate jacking mode
Switching jacking mode on and off
-Press the (CAR] function button. The main menu
Adaptive Air Suspension appears.
- Press the !SETUP) function button. The main menu
Adaptive Air Suspension appears=> fig. 183. - Turn the control knob to
Vehicle jack mode and select on
or
off as required.
The vehicle jack mode must be activated before changing a wheel
so that the automatic control processes for the air suspension do
not make lifting with the vehicle jack more difficult.
[ i ] Tips
The vehicle jack mode is switched off automatically at speeds above
9 mph (15 km/h).•
Applies to vehicles: with Adaptive Air Suspension
Towing a trailer
Automatic lowering is not desirable when towing a trailer.
Fig. 184 MMI display:
Activate towing opera
tion
If you are going to tow a trailer, you must activate the trailer
towing mode.
Switching the trailer towing mode on and off
manually
- Pressthe!CARJfunction button. The main menu
Adaptive Air Suspension appears.
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- Disengage and lower the floor panel before you close the
luggage compartment lid again.
Storing the replaced wheel
- Place the replaced wheel inside the spare wheel well in
the luggage compartment .
Tighten the knurled retaining screw clockwise to secure the wheel in place.
- Disengage and lower the floor panel before you close the
luggage compartment lid again.
& WARNING
Loose items in the passenger compartment can cause serious
personal injury during hard braking or in an accident .
• Never store the spare wheel or jack and tools in the passenger
compartment.
• Always store all jacking equipment, tools, and the spare wheel
in the luggage compartment.
• Tighten the knurled retaining screw for the spare wheel
securely.
[ i] Tips
Check the inflation pressure of the spare tire periodically to keep the
tire ready for use. •
Changing a wheel
Before changing a wheel
Observe the following precautions for your own and your
passenger's safety when changing a wheel.
- After you experience a tire failure, pull the car well away
from moving traffic and try to reach level ground before
you stop :::;. & .
- All passengers should leave the car and move to a safe
location (for instance, behind the guardrail) :::;,& .
- Engage the parking brake to prevent your vehicle from
rol ling unintentionally :::;.& .
- Move selector lever to position P :::;. & .
-If you are towing a trailer: unhitch the trailer from your
vehicle.
- Take the jack and the spare tire out of the luggage
compartment:::;.
page 336.
& WARNING
You or your passengers could be injured while changing a wheel if
you do not follow these safety precautions:
• If you have a flat tire, move a safe distance off the road. Turn off
the engine, turn the emergency flashers on and use other warning
devices to alert other motorists.
• Make sure that passengers wait
in a safe place away from the
vehicle and well away from the road and traffic.
• To help prevent the vehicle from moving suddenly and possibly
slipping off the jack, always fully set the parking brake and block
the wheel diagonally opposite the wheel being changed. When one ...
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Fig. 253 Close-up:
proper positioning of
jack
- Position the jack below the door sill under the mounting
point
that is closest to the wheel to be changed
:::::, page 341 , fig. 252.
Extend the
jack under the lifting point on the door sill
until its arm is pos itioned d irectly under the lifting point
:::::,& .
- Align the jack so that its arm @ engages the plastic
l ifting point on the door sill and the movable base@ is
flat on the ground :::::, fig. 253.
Wind the jack up further until the flat tire comes off the
ground :::::,& .
The jack must be installed only at the places indicated~ page 341,
fig. 252. There is exactly one location for each wheel. The jack must
not be positioned at any other location~&.
An unstable surface under the jack can cause the vehicle to slip off
the jack. Always provide a firm base for the jack on the ground. If
necessary place a sturdy board or similar support under the jack . On
hard, slippery surfaces (such as tiles) use a rubber mat or similar to
prevent the jack from slipping~&.
& WARNING
• You or your passengers could be injured while changing a
wheel if you do not follow these safety precautions:
-Positioning the jack under the vehicle at any other place than
those indicated above may damage the vehicle or may result in
personal injuries.
- A soft or unstable surface under the jack may cause the
vehicle to slip off the jack . Always provide a firm base for the
jack on the ground. If necessary, use a sturdy board under the
jack.
- On hard, slippery surface {such as tiles) use a rubber mat or
similar to prevent the jack from slipping.
• To help prevent injury to yourself and your passengers:
-Do not raise the vehicle until you are sure the jack is securely
engaged.
- Passengers must not remain in the vehicle when it is jacked
up.
- Make sure that passengers wait in a safe place away from
the vehicle and well away from the road and traffic.
- Make sure jack position is correct, adjust as necessary and
then continue to raise the jack.
[ i ] Tips
Before changing the wheel, you must activate the jacking mode, so
that the automatic controls for the Adaptive Air Suspension do not
make it more difficult to lift the vehicle with the jack ~
page 184. •
-Alphabetical index ..,,,_.:_.__ ____ _...::.:...::..;.:___ ________________ _
A
A . ccessones ............. .... .... .. .
Adapter for cupholder ..... ...... ... . 368
103
Ad . A' S .
apt1ve 1r uspens1on .. .... ... .... 182
Automatic mode . . . . . . . . . . . . . . . . . 183
Description . . . . . . . . . . . . . . . . . . . . . 182
Dynamic mode . . . . . . . . . . . . . . . . . . 183
Jacking mode when changing a flat tire .
184
Lift mode . . . . . . . . . . . . . . . . . . . . . . . 183
Setting the driving modes .. .... ... 183
Standard mode . . . . . . . . . . . . . . . . . . 183
Trailer towing mode ... .... .... ... 184
Warning/indicator lights ....... .... 21
Adaptive Cruise Control . . . . . . . . . . . . . . 135
Changing speed .. ........... .... 138
Driver information ............... 142
Driver interven tion prompt ........ 146
Driving in traffic ...... .... ...... . 136
Driving program ...... .... .... ... 147
Error messages . . . . . . . . . . . . . . . . . . 145
Open road . . . . . . . . . . . . . . . . . . . . . . 136
Override . . . . . . . . . . . . . . . . . . . . . . . . 136
Request for driver to assume control 136
Save speed . . . . . . . . . . . . . . . . . . . . . . 137
Setting distance . . . . . . . . . . . . . . . . . 140
Setting time interval .. .. .......... 140
Settings . . . . . . . . . . . . . . . . . . . . . . . . 147
Specia l driving situations ......... 147
Status messages . . . . . . . . . . . . . . . . . 145
Switching on and off .. .... ... .... 137
System limits ...... .... .......... 147
Tempor arily turning off ... ...... .. 139
warning/indicator lights .... ...... . 143
Adaptive Light ......... ... .... .... ... 73
defective .......... .... ..... .. .... 37
Adding
Engine coolant ......... ... .... ...
305
Engine oil ... .. ...... ....... ..... 302
Windshield washer fluid .... .... ... 312
Additional accessories .... .... .... ... 368
Additives
Engine oil ... .. ..... .. ...... .....
302
Adjusting
Instrument cluster i llumination ......
16
Steering column electrically .... ... 123
Steering column manually ...... ... 122
Ad' . f Justing ront seats .. .... .... .... ... 87
Advanced Key ...... .. .... ........... 59 Care
........ ..... ....... ... .. ...
226
Child restraints .................. 236
Children ....... ....... .... ..... . 235
Components (front airbags) ........ 219
Danger of fitting a chi ld safety seat on the
front passenger seat .. ..... .. ...
214
Disposal ............ .. .... ...... 226
Fron t airbags ...... .... .... .. 216, 217
How do the front airbags work? . ... 221
How many airbags does my vehicle have?
219
How the Advanced Airbag System compo -
nents work together . . . . . . . . . . . . .
220
Important things to know ... ..... .. 212
Indicato r light ...... ... .. .... .... 223
Monitoring .... .... .... ...... .... 223
PASSENGER AIR BAG OFF light ..... 224
Repairs ..... .. .... .... ... ... ... . 226
Driver messages . . . . . . . . . . . . . . . . .
128 Safety instructions .... .... .... ... 225
Locking vehicle ................. .. 61 Side airbags ... .... .... ... ... ... . 228
START button ................... 126 Side curtain airbags (SIDEGUARD) .. 231
Starting engine ........ ..... .. ... 126 Weight-sensing mat .. ....... ..... 235
STOP button .... ... .... .... ...... 127 When must the system be inspected? .. .
Switching engine off ...... .... ...
127 223
Switching on ignition ...... .... ... 126 All Whee l Drive ... .... .... .......... 264
Unlocking vehicle ........... ...... 60 Alloy wheels . .... .... ....... .... ... 283
Air conditioning
See Climate controls ... .......... . 11 O
Airbag
Warning/indicator lights ..... ......
20
Airbag system ... ... .. .... .... .. 212, 229
Advanced Airbag System ...... .... 216
Advanced Airbag System components
219
All- whee l drive
Winter tires .... ........... .... ..
329
Alternator
See Generator . . . . . . . . . . . . . . . . . . . . 19
Anti -freeze
See Engine coolant system ...... .. 303
Anti-glare inside day-night mirror .... .. 82