_____________________________________________ A_ d_a ...: p_ t_ i_ v _e_ C_ ru_ is_e_ C_ o_n _ t_ r_o _ l _ __.BIII
Ap plies t o vehi cle s: wi th Ada ptive Crui se Co nt rol
Lane changes by other vehicles
Fig . 145 A vehicle
changes lanes
Vehicles which move into your lane a short distance ahead cannot
be identified by the Adaptive Cruise Control until they are in the
radar sensor's detection range. •
Applies to veh ic le s: w ith Adap tiv e C ruise Cont rol
Vehicles that are difficult to detect
I
i------------------"-;A
Fig . 146 Two-wheeled
vehicle driving ahead
Vehicles that are d ifficult to detect , e.g. two -wheeled vehicles
ahead, vehicles with high ground clearance, protruding load, are
frequently detected late or not at al l, under some circumstances. •
Contro ls and eq uip
ment Vehicle care I I irechnical data
• .___A_ d_ a --=- p_t_ i_v _e _ A_ ir_ S_u_ s_,_ p_e_ n_ s_io _ n _____________________________________________ _
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. •
____________________________________________ A_ d_a--' p=-- t_iv _e_ A_ ir_ S_u_ s-=- p_e _ n_ s _ io_ n __ lllll
Ap plies to vehicl es: wi th Adap tive Ai r Su sp ension
Chassis controls
Four different driving modes can be set by the driver.
The automatic contro l processes are speed -and time -dependent.
For example, it is not possib le to raise the suspension to the lift
mode above certain speeds.
L ev el a djustment
automatic
dynamic
aut om ati c Ground clearan
ce
about 4.7 - 4 .1 inches
(120 -105 mm)
about 4.7 inches (120 mm)
about 4.1 inches (105 mm)
a bo ut 5.3 inches ( 135 mm)
Se lect the automatic mode i f you p refer suspension and damping
settings emphasizing comfort .
• Low ering : When a speed of about 75 mph (120 km/h) is exceeded
for more than 30 seconds, the vehicle is automatically lowered by about 0.6 inch (15 mm) to the dynamic level which is more suitable
for highway speeds. Road holding is optimized as a result of the lower center of gravity and fuel consumption is reduced as a result
of reduced wind res istance.
• Rais ing : The vehicle is automatically raised again if the speed
falls below about 44 mph (70 km/h) for a period of 2 minutes . The
vehic le is raised immediate ly when speed falls below about 22 mph
(35 km/h).
s ta nd ard
Select the standard mode if you desire a suspension setting with a
special emphasis on comfort. In the standard mode there is
no
lowering of the suspension. Even a t high speeds, the vehicle stays
at the same level. Damping characteristics with a decided emphasis
on comfort are selected in this mode.
Controls and equip
ment d
y n ami c
Select the dynamic mode if you prefer a sporty suspension setting .
In this mode, the vehicle is lowered whi le it is still stationary and
spo rty damping characteristics are selected . The warn ing light
c.::i
in the instrument cluster will come on for a few seconds just to
remind you of the reduced ground clearance .
If y ou switch off the engine wh ile the ve hicle is in the dynamic mode
and then switch on the ignition once again, the
c.::i warning light
wi ll also come on again f or a few seconds as a reminder .
lift
Select the lift mode when you have to travel over poor sect ions of
road (e .g. trails). In the lift mode, the vehic le is raised by 0.6 inch (15
m m) compared to norma l leve l while it is stil l stationary and
damping characteristics are adjusted to emphasize comfort .
The lift mode can be activated only at speeds below 50 mp h (80
km/h) . When a speed of about 62 mph (100 km/h) is exceeded, the
system automatical ly leaves lift mode and the mode set previously
(standard, automat ic, dynam ic) is activated aga in. •
App lies to v ehic les : with Ada ptive Air Suspens io n
Setting the driving modes
The driving modes are set in MM/.
Fig . 18 2 MMI di splay:
Settin gs _,.
I • •