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Home >> Mercedes Benz >> 2007 >> S550 Base >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Throttle Control, Speed Control Systems -- Basic Knowledge -- S-Class (221) >> Basic Knowledge >> Cruise control (CC) function - GF30.30-P-0001M

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

ENGINE 275.950 in MODEL 215, 220 

ENGINE 275.951 in MODEL 230 up to Model Year 8 

ENGINE 275.953 in MODEL 216, 221 up to Model Year 8 

ENGINE 275.954 in MODEL 230 up to Model Year 8 

ENGINE 275.980 in MODEL 215, 220 

ENGINE 275.981 in MODEL 230 up to Model Year 8 

ENGINE 275.982 in MODEL 216, 221 up to Model Year 8 

ENGINE 285.950 in MODEL 240 

ENGINE 285.980 in MODEL 240 

Illustrated model 215, 220, 230, 240 

Fig 1: Cruise Control Function Diagram
G07622907Courtesy of MERCEDES-BENZ USA

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

The cruise control function can be activated at speeds above 40 km/h with the cruise control switch. Using the input signals and the position of the cruise control switch, the engine control unit actuates the throttle valve actuator for the cruise control function.

The cruise control mode is switched off by:

The signals from the cruise control switch are detected by the steering column module and transmitted via the CAN data bus to the engine control unit.

The speed signal is transmitted by the ESP control unit via the CAN to the engine control unit.

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