(Perform Adjustments To The Control System - AR54.30-P-1000-02QQ)

Model 197.3 /4 Roll test on and off 

Switch dynamometer test on and off.

1. Close engine hood, trunk lid and doors.
2. Turn the key in the ignition lock into position "1".

   The standard display (kilometer counter) must appear in the multifunction display (A1p13), if necessary press the scroll forward button repeatedly (S110s1).

   Courtesy of MERCEDES-BENZ USA

3. Press system selection button (S110s3) until in the multifunction display (A1p13) the "Trip" menu item is highlighted with a bar.

   "Trip" remains selected for approx. 5 s. Operation step 3 must be carried out within this time.

4. First press the  Accept phone call button (S111 s3) and keep pressed, then in addition press and keep pressed the OK button within 1 s. S110s6

   Keep both buttons (S111s3, S110s6) pressed for approx. 5 s: The A1 p13 workshop menu with the indices "vehicle data", "dynamometer test" and "ASSYST PLUS" appears in the multifunction display.

5. Press scroll forwards button (S110s1) repeatedly until "dynamometer test" is highlighted and confirm selection with OK button (S110s6).
6. Press scroll forwards button (S110s1) repeatedly until "ON" is highlighted and confirm selection with OK button (S110s6).

   ABS (ABS), acceleration skid control (ASR) and Electronic Stability Program

   (Electronic-Stability-Program) (ESP) are now switched passive.

7. Start the engine and perform brake test.
8. After finishing the brake test, press the scroll forwards button

   (S110s1)repeatedly until "Off with KL15" is highlighted and confirm the selection with OK button (S110s6).

9. Switch the ignition off/on and off again.