Cruise control (CC) function - GF30.30-P-0001V

ENGINE 272.920 in MODEL 203 up to Model Year 8

ENGINE 272.922 in MODEL 211

ENGINE 272.940 in MODEL 203 up to Model Year 8

ENGINE 272.941 in MODEL 203 up to Model Year 8

ENGINE 272.942 in MODEL 171 up to Model Year 8

ENGINE 272.943 in MODEL 211, 219

ENGINE 272.944 in MODEL 211

ENGINE 272.960 in MODEL 203 up to Model Year 8

ENGINE 272.963 in MODEL 171 up to Model Year 8

ENGINE 272.964 in MODEL 211, 219

ENGINE 272.966 in MODEL 230 up to Model Year 8

ENGINE 272.970 in MODEL 203 up to Model Year 8

ENGINE 272.972 in MODEL 211

ENGINE 273.960 in MODEL 211, 219

ENGINE 273.962 in MODEL 211

ENGINE 273.965 in MODEL 230 up to Model Year 8

ENGINE 273.967 in MODEL 209

ENGINE 272.940 in MODEL 209

ENGINE 272.960 in MODEL 209

Shown on engine 272.963 in model 171

Fig 1: Cruise Control Function Chart

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

The cruise control must maintain the preselected speed constant irrespective of the load condition, without the accelerator pedal being operated.

The Cruise control function can be actuated using the Cruise control push-button switch. The engine control unit actuates the throttle valve actuator for the cruise control function with the aid of input signals and the position of the cruise control push-button switch.

The cruise control mode is switched off by:

Moving the cruise control switch into OFF position
Actuation of the service brake (CAN message)
Moving selector lever into position "N"
Operation of the clutch pedal
Control intervention function of the traction system.

The signals from the push-button switch on the cruise control are detected by the steering column module and transmitted over the CAN data bus to the engine control unit.

The speed signal is transmitted by the traction system control unit (ESP) via the CAN to the engine control unit.

Variable speed limiter (VSL), except

Switching in the variable speed limit takes place through pressing the Cruise control push-button switch (yellow light emitting diode lights up).

The vehicle speed limit is set by means of the variable cruise control switch.

If the braking effect in overrun mode is not sufficient to maintain the speed at a high gradient, a chime will request the driver to brake. Vehicles with Distronic (DTR) are braked.

Deviating functions compared to cruise control:

Variable speed-governor function (VGB) adjustable from 30 km/h (20 mph) to the top speed of the vehicle.
The accelerator pedal must be actuated further.
When the brakes are applied the variable speed limit is not switched off.
When the ignition is switched OFF the preset speed data remain stored in the variable cruise control system.

Component description for the ME-SFI [ME] control unit	GF07.61-P-6000V
Component description for the Cruise control push-button switch	GF30.20-P-2100V
Component description for the throttle valve actuator	GF30.20-P-2020V