Calibrate Electric Controller Unit For Distance Warning Function With Active Brake Intervention - AR30.30-P-0018SR

MODEL 453 

with CODE 258 (Active Brake Assist System) 

Shown on model 453.3 

Courtesy of MERCEDES-BENZ USA

	Notes on preventing damage to electronic components due to a magnetic tool		AH54.00-P-0002-01A
	Calibrate
1	Unclip the cover (13) and remove	Model 453.3/4 with code 258 (Active Brake Assist System) Pull bumper above the cover (13) slightly forward.
2	Check/adjust alignment of controller unit for distance warning function with active brake intervention (A90)		AR30.30-P-0017-01SR
		Adjustment device	Fig 1
3	Clip in cover (13)	Model 453.3/4 with code 258 (Active Brake Assist System) Pull bumper above controller unit for distance warning function with active brake intervention (A90) forward slightly.
4	Perform calibration drive with vehicle diagnosis system		AD00.00-P-2000-06SR

Fig 1: Identifying Adjustment Device (453 589 02 21 00)

Courtesy of MERCEDES-BENZ USA