Check Vehicle Level At Front And Rear Axle With Electronic Inclinometer, Adjust If Necessary - AR40.20-P-0301FR

Model 257, 290 

Courtesy of MERCEDES-BENZ USA

Shown on model 257 on front axle 

Courtesy of MERCEDES-BENZ USA

Shown on model 257 on rear axle, except code 489 (AIR BODY CONTROL) 

Courtesy of MERCEDES-BENZ USA

	Check
1	Check condition of vehicle.	Before the vehicle level check, it must be ensured that none of the suspension components are damaged or exhibit wear. For the vehicle level check, all vehicle parts must be installed and the vehicle completed and in a ready to drive condition. The vehicle must not be loaded.
2	Check and correct tire pressure.
			AP40.15-P-4061A
3	Drive the vehicle onto measuring station and secure using parking brake.
4	Unlock turn and slip plates.
5	Clean measuring ranges (a, b).
6	Place measuring sensor (086a) in measuring range (a) and measure vehicle level at measuring point 1 (front left) and measuring point 2 (front right).
	000 588 05 19 00 Vehicle level inclinometer		WS40.00-P-0007B
		Assign suspension data Model 290	AR40.20-P-0203FX
		Assign suspension data Model 257 The connecting cable (086b) for the measurement sensor (086a) must face towards the vehicle center.	AR40.20-P-0203FR
		Otherwise the measurement will be inaccurate. Save measured values.
7	Place measuring sensor (086a) in measuring range (b) and measure vehicle level at measuring point 3 (rear left) and measuring point 4 (rear right).
	000 588 05 19 00 Vehicle level inclinometer		WS40.00-P-0007B
		Assign suspension data Model 290	AR40.20-P-0203FX
		Assign suspension data Model 257	AR40.20-P-0203FR
		The connecting cable (086b) for the measurement sensor (086a) must face towards the vehicle center.
		Otherwise the measurement will be inaccurate.
		Save measured values.
8	Check maximum permissible difference in vehicle level between left and right side of vehicle at front axle.	Assign suspension data Model 290	AR40.20-P-0203FX
		Assign suspension data Model 257	AR40.20-P-0203FR
		The specified test tolerance applies only when checking the vehicle level but not for calibration.
9	Check maximum permissible difference in vehicle level between left and right side of vehicle at rear axle.	Assign suspension data Model 290	AR40.20-P-0203FX
		Assign suspension data Model 257	AR40.20-P-0203FR
		The specified test tolerance applies only when checking the vehicle level but not for calibration.
	Adjust
10	Calibrate vehicle level using vehicle diagnosis system.	Model 257, 290 with code 489 (AIR BODY CONTROL) When the vehicle level is outside the test tolerance.
			AD00.00-P-2000-06FR
11	Check and correct headlamp adjustment.	Only if the vehicle level has been calibrated.
		Model 290	AP82.10-P-8260O
		with code 489 (AIR BODY CONTROL)
		Model 257 with code 489 (AIR BODY CONTROL)	AP82.10-P-8260L