Permanent Speed Limiter, function - GF30.30-P-3002TX

ENGINE 272 in MODEL 221 with CODE (219) Distronic (DTR) up to Model Year 8 

ENGINE 273 in MODEL 221 with CODE (219) Distronic (DTR) up to Model Year 8 

Permanent Speed Limiter activated 

Fig 1: View Of Instrument Cluster With Permanent Speed Limiter Activated

Courtesy of MERCEDES-BENZ USA

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

The function of the Permanent Speed Limiter is integrated in the ESP control unit (N47-5).

If the vehicle approaches the set maximum speed, the set maximum speed is maintained by engine intervention and if necessary by intervention by the brake system.

When the Permanent Speed Limiter is activated, DISTRONIC or the Variable Speed Limiter can be used (activated) up to the set permanent maximum speed.

Activation/deactivation 

The Permanent Speed Limiter is switched on and off via the left or right switch group in the multifunction steering wheel (S110 and S111).

In the "Settings" menu, menu item "Speed Limitation" of the instrument cluster (A1), the maximum speed can be set in 10 km/h increments from 160 km/h to 240 km/h.

If the Permanent Speed Limiter is activated, the segments in the speedometer rim above the set maximum speed are faded out and the segments below illuminated.

The Variable Speed Limiter and Permanent Speed Limiter have the sales designation "SPEEDTRONIC".