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DISTRONIC, overall function - GF30.30-P-0005LEA

ENGINE 156, 273, 275 in MODEL 216 as of Model Year 09 /AEJ 08 with CODE (219) Distronic (DTR) 

ENGINE 156, 272, 273, 275, 642, 629 in MODEL 221 as of Model Year 09 /AEJ 08 with CODE (219) Distronic (DTR) 

Fig 1: Distronic Operation Diagram
G07509499Courtesy of MERCEDES-BENZ USA

DISTRONIC, operation 

The systems described below belong to the driving assistance systems and are offered as special equipment (SA) under the designation "DISTRONIC" with Code 219.

The DISTRONIC special equipment includes the following functionality:

Variable Speed Limiter 

The Variable Speed Limiter enables the driver to set a maximum speed ranging from 30 km/h up to the maximum speed for himself.

Permanent Speed Limiter 

The Permanent Speed Limiter allows the driver to set (limit) the maximum speed of the vehicle (e.g. for winter tires with a lower permissible maximum speed).

Distronic (DTR) 

Using a radar sensor, DISTRONIC maintains the vehicle at a target distance from the vehicle ahead, set by the driver, and alerts the driver via visual and audible signals before dangerous situations arise.

The electronic system automatically activates the brakes when the distance to the preceding vehicle decreases, and accelerates automatically back to the stored target speed as soon as the traffic situation allows.

Proximity warning system (AWS) 

The proximity warning system is an additional function of DISTRONIC.

The driver can activate the optical and acoustic distance warning independent of the DISTRONIC distance control.

These subfunctions are described in the following documents:

  DISTRONIC, location of components   GF30.30-P-0005-01LEA 
  DISTRONIC radar sensor group   GF30.30-P-0005-04LEA 
  DISTRONIC block diagram   GF30.30-P-0005-05LEA 
  Variable Speed Limiter, function   GF30.30-P-3001LEA 
  Permanent speed limiter, function   GF30.30-P-3002LEA 
  DISTRONIC, function   GF30.30-P-3200LEA 
  Proximity warning system, function   GF54.70-P-2000LEA