Permanent speed limiter, function - GF30.30-P-3002SX

ENGINE 156, 273, 275 in MODEL 216 with CODE (233) Distronic Plus up to Model Year 8 

ENGINE 156, 272, 273, 275, 642, 629 in MODEL 221 with CODE (233) Distronic Plus up to Model Year 8 

Permanent speed limiter activated 

Fig 1: Identifying Instrument Cluster Indicators With Permanent Speed Limiter Activated

Courtesy of MERCEDES-BENZ USA

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).

The Permanent Speed Limiter function is integrated in the radar sensors control unit (SGR) (N62/1).

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 active, DISTRONIC PLUS or the Variable Speed Limiter (except ) can be used 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 stages from 160 km/h to 240 km/h.

When the Permanent Speed Limiter is activated, the segments above the set maximum speed in the speedometer arc disappear while the others are illuminated.

Variable Speed Limiters (except ) and Permanent Speed Limiters have the sales designation SPEEDTRONIC.