Perform adjustments to the control system - AR54.30-P-1000-02RAX

Activate tire pressure monitor 

1. 1.1 Remove unpressurized wheels from vehicle.

   With tire pressure monitor (Beru) code 475:

2. 2 Correct tire pressure in all wheels.

   Otherwise tire pressures deviating from the specified value are monitored.

3. 3 Switch on ignition.
4. 4 Press system selection button (S110s3) repeatedly until multifunction display (A1p13) shows basic display (speedometer or temperature display).
5. 5 Press scroll forward/back button (S110s1) repeatedly until multifunction display (A1p13) shows tire pressure display or the message "Tire pressure display appears after driving for a few minutes".
   Fig 1: Identifying Selection And Forward/Back Buttons And Multifunction Display

   Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
6. 6 Press instrument illumination rheostat and reset button (A1r1).

   "Monitor current tire pressure?" appears on the multifunction display (A1p13).

7. 7 Press right + and - buttons, setting of specific functions and volume control (S111s1) for confirmation.

   The multifunction display (A1p13) shows the message "Tire pressure reactivated" followed by "Tire pressure display appears after driving for a few minutes".