select shift range 1, 2 or 3 in good time. 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. If
you need additional braking, depress the
brake pedal repeatedly rather than continu-
ously.
G
Risk of accident
Never depress the brake pedal continuously
while the vehicle is in motion, e.g. never cause
the brakes to rub by applying constant slight
pedal pressure. This causes the brake system
to overheat, increases the braking distance
and can lead to the brakes failing completely.
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.
You can set a variable or permanent limit
speed:
R
variable for speed limits, e.g. in built-up
areas
R
permanent for long-term speed restric-
tions, e.g. for driving on winter tyres
(
Y
page 256)
G
Risk of accident
Speedtronic is only an aid designed to assist
driving. You are responsible for the vehicle's
speed and for braking in good time.
i
The speed indicated in the speedometer
may differ slightly from the limit speed
stored.
Variable Speedtronic
With the cruise control lever, you can operate
cruise control, Distronic Plus* and variable
Speedtronic.
The LIM indicator lamp on the cruise control
lever indicates which system you have selec-
ted:
R
LIM indicator lamp off:
Cruise control or Distronic Plus* is selec-
ted.
R
LIM indicator lamp lit:
Variable Speedtronic is selected.
You can use the cruise control lever to limit
the speed to any speed above 30 km/h while
the engine is running.
:
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 or Dis-
tronic Plus* and variable Speedtronic
B
To deactivate variable Speedtronic
Selecting variable Speedtronic
X
Check whether LIM indicator lamp
;
is on.
If it is on, variable Speedtronic is already
selected.
If it is not, press the cruise control lever in
the direction of arrow
A
.
LIM indicator lamp
;
in the cruise control
lever lights up. Variable Speedtronic is
selected.
254
Driving systems
Controls
* optional
221_AKB; 2; 3, en-GB
bjanott,
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