Brake* are described in the "Driving safety
systems" section (
Y
page 58).
Cruise control
Cruise control maintains a constant road
speed for you. It brakes automatically in order
to avoid exceeding the set speed. On long and
steep downhill gradients, especially if the
vehicle is laden or towing a trailer, you must
shift to a lower gear in good time or select
shift range 1, 2 or 3 on vehicles with auto-
matic transmission*. By doing so, you will
make use of the braking effect of the engine,
which relieves the load on the brake system
and prevents the brakes from overheating
and wearing too quickly.
G
Risk of accident
Do not change down for additional engine
braking on a slippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid.
Use cruise control only if road and traffic con-
ditions make it appropriate to maintain a
steady speed for a prolonged period. You can
store any road speed above 30 km/h.
G
Risk of accident
Cruise control cannot take account of road
and traffic conditions.
Always pay attention to traffic conditions
even when cruise control is activated.
Cruise control is only an aid designed to assist
driving. You are responsible for the vehicle's
speed and for braking in good time.
G
Risk of accident
Do not use cruise control:
R
in road and traffic conditions which do not
allow you to maintain a constant speed (e.g.
heavy traffic or winding roads). You could
otherwise cause an accident.
R
on slippery roads. Braking or accelerating
could cause the drive wheels to lose trac-
tion and the vehicle could then skid.
R
when there is poor visibility, e.g. due to fog,
heavy rain or snow
Cruise control lever
You can operate cruise control and variable
Speedtronic with the cruise control lever.
The LIM indicator lamp on the cruise control
lever indicates which system you have selec-
ted:
R
LIM indicator lamp off:
Cruise control is selected.
R
LIM indicator lamp lit:
Variable Speedtronic is selected.
:
To store the current speed or a higher
speed
;
LIM indicator lamp
=
To store the current speed or to call up
the last stored speed
?
To store the current speed or a lower
speed
A
To switch between cruise control and var-
iable Speedtronic
B
To deactivate cruise control
When cruise control is activated, the stored
speed is displayed in the multi-function dis-
play for five seconds. In the multi-function
138
Driving systems
Control
s
* optional
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