Mercedes-Benz R 350 Operator's Manual page 180

2. this device must accept any interference
received, including interference that may
cause undesired operation of the device.
Removal, tampering, or altering of the
device will void any warranties and is not
permitted. Do not tamper with, alter, or use
the device in any non-approved way.
Any unauthorized modification to this
device could void the user's authority to
operate the equipment.
DISTRONIC regulates the speed and
automatically helps you maintain the
distance to the vehicle detected in front.
DISTRONIC brakes automatically so that the
set speed is not exceeded.
On long and steep downhill gradients,
especially if the vehicle is laden or towing a
trailer, you must 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 DISTRONIC detects a slower-moving
vehicle in front, your vehicle is braked in order
to maintain the preset distance to the vehicle
in front.
If there is no vehicle in front, DISTRONIC
operates in the same way as cruise control in
the speed range between 20 mph (30 km/h)
and 120 mph (200 km/h). If a vehicle is
driving in front of you, DISTRONIC operates
in the speed range between 0 mph (0 km/h)
and 120 mph (200 km/h).
Do not use DISTRONIC on roads with steep
gradients.
Driving systems
Cruise control lever
To store the current speed or a higher
:
speed
To store the current speed or a lower
;
speed
To deactivate DISTRONIC
=
To store the current speed or call up the
?
last stored speed
Switching on DISTRONIC, storing and
maintaining the current speed
Important safety notes
G
WARNING
The vehicle can be braked when DISTRONIC
is activated. For this reason, deactivate
DISTRONIC if the vehicle is to be set in motion
by other means (e.g. in a car wash or by
towing).
G WARNING
If you depress the brake pedal, DISTRONIC is
deactivated. DISTRONIC will then no longer
brake your vehicle. In such cases, control the
distance from vehicles traveling in front with
the brake alone. You could otherwise cause
an accident and thereby injure yourself and
others. The driver remains fully responsible
for the vehicle's distance from other vehicles,
the speed being driven and for braking in good
time.
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