Activate/Deactivate Roller Brake Test Stand Mode - AR46.20-P-0501-01RG

Model 190 

With Code 201 (Rear axle steering) 

Model 190 

With Code M030 (GT R version) 

Model 190 

With Code M031 (GT C version) 

Model 290 

Activate roller brake test stand mode 

1. Place the transmitter key inside the vehicle.
2. Press Start button once.

   Circuit 15 R is switched.

3. Select the total distance in the "Trip" menu in the instrument cluster.
4. Press and hold Accept phone call button (1), then press OK button (2) until the service menu opens.
5. Using the OK button (2), activate roller brake test stand mode.

   The service menu still remains open even after activation.

   Courtesy of MERCEDES-BENZ USA

   Deactivate roller brake test stand mode 

6. Using the OK button (2), deactivate roller brake test stand mode.
7. Exit service menu and switch off ignition.