Mercedes-Benz SL 500 Operator's Manual page 201

Controls in detail
Driving systems
Distronic activated
When Distronic is activated the DTR sym-
bol and the set speed are seen in the left
display.
1 Symbol for activated Distronic
2 Set speed
200
Cruise control lever
The Distronic system is operated by means
of the cruise control lever.
The cruise control lever is the uppermost
lever found on the left-hand side of the
steering column.
1 Set current or higher speed
2 Set current or lower speed
3 Deactivate Distronic
4 Resume at last set speed
Activating Distronic
You can activate Distronic if
you are driving between 25 mph
(40 km/h) and 110 mph (180 km/h)
the ESP is activated ( page 78)
When Distronic is activated the speedome-
ter display will show a message such as
DTR 60 mph .
If Distronic is deactivated, the speedome-
ter display will show the message
.
DTR --- mph
In the following cases you cannot activate
Distronic:
up to two minutes after starting the en-
gine
when you brake
if you have set the parking brake
if the gear selector lever is in
position P, R, or N.
if the ESP is switched off