Check vehicle level at front and rear axle with electronic inclinometer, adjust if necessary - AR40.20-P-0301GZ

MODEL 164

Fig 1: Checking Vehicle Level With Electronic Inclinometer (Front And Rear Axle)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Left Front Measurement Point 1

Courtesy of MERCEDES-BENZ USA

Measurement point 1 (left front) illustrated

Fig 3: Identifying Left Rear Measurement Point 1

Courtesy of MERCEDES-BENZ USA

Measurement point 3 (left rear) illustrated

MODIFICATION NOTES

28.11.05

Vehicle level - rear axle

*BE40.20-P-1001-03M

1	Drive vehicle onto measurement platform and apply parking brake	Observe general information on vehicle level check.	AR40.00-P-0202GZ
	Clean
2	Clean mounting points for measurement sensor (2) on left and right transverse control arms (1) of front axle
3	Clean left and right rear axle shafts (3)
	Measure
4	Measure the vehicle level at the front axle via the inclination of the transverse control arm. To do this, position the feet of the measurement sensor (086a) on the three mounting points for the measurement sensor (2) on the left and right transverse control arm (1) and save each measurement	The connecting cable on the measurement sensor (086a) must point towards the center of the vehicle (arrow) otherwise the measurement will be incorrect. Measure the left side of the vehicle first, then the right. Electronic inclinometer
5	Measure the vehicle level at the rear axle via the inclination of the rear axle shaft (3). To do this, position the measurement sensor (086a) on the left and right rear axle shaft (3) and save each measurement	The connecting cable on the measurement sensor (086a) must point towards the center of the vehicle (arrow) otherwise the measurement will be incorrect. Measure the left side of the vehicle first, then the right. Electronic inclinometer
	Checking
6	Compare measurements with specified values	Vehicle level - front axle	*BE40.20-P-1001-02M
		Permissible difference in vehicle level between right and left side of vehicle	*BE40.20-P-1002-02M
		Vehicle level - rear axle	*BE40.20-P-1001-03M
		Permissible difference in vehicle level between right and left side of vehicle	*BE40.20-P-1002-03M
7.1	Transfer the measurements from the inclinometer (086) into the wheel alignment system	Only when performing wheel alignment.
	Remove/install
8.1	Adjust vehicle level	Only if the vehicle level is outside the tolerance at one or more measurement points. Vehicles with steel suspension: ↓ Adjust vehicle level by installing or removing spacer washers on upper centering piece of spring, see: ↓
		Remove/install front spring	AR32.20-P-0200GZ
		Remove/install rear spring Vehicles with AIRmatic (air suspension with level adjustment and adaptive damping system ADS), code 489: Adjust vehicle level by recalibrating the AIRmatic.	AR32.20-P-0230GZ
	Measure
9.1	Remeasure vehicle level and adjust if necessary	Only when vehicle level has been adjusted. Electronic inclinometer

TEST AND ADJUSTMENT VALUES FOR FRONT AXLE VEHICLE LEVEL

Number	Designation			Model 164.122/124/125/128/175/177/182/186 without code 489, with code 494	Model 164.122/124/125/128/175/177/182/186 without code 489, without code 494
BE40.20-P-1001-02M	Vehicle level - front axle		∠°	+9, 0	+9, 7
BE40.20-P-1002-02M	Permissible difference in vehicle level between right and left side of vehicle	When checking	∠°	1.3	1.3
BE40.20-P-1002-02M		When calibrating with Star Diagnosis	∠°	-	-

TEST AND ADJUSTMENT VALUES FOR FRONT AXLE VEHICLE LEVEL

Number	Designation			Model 164.120/121/156 without code 489	Model 164.120/121/122/124/125/128/156/175/177/182/186 with code 489, model 164.172/195/8
BE40.20-P-1001-02M	Vehicle level - front axle		∠°	+7, 1	+5, 1
BE40.20-P-1002-02M	Permissible difference in vehicle level between right and left side of vehicle	When checking	∠°	1.3	1.3
BE40.20-P-1002-02M		When calibrating with Star Diagnosis	∠°	-	1.0

TEST AND ADJUSTMENT VALUES FOR REAR AXLE VEHICLE LEVEL

Number	Designation			Model 164.122/124/125/128/175/177/182/186 without code 489, with code 494, without code 430	Model 164.122/124/125/128/175/177/182/186, without code 489, with code 494, with code 430
BE40.20-P-1001-03M	Vehicle level - rear axle		∠°	+1.8	+2.4
BE40.20-P-1002-03M	Permissible difference in vehicle level between right and left side of vehicle	When checking	∠°	1.0	1.0
BE40.20-P-1002-03M		When calibrating with Star Diagnosis	∠°	-	-

TEST AND ADJUSTMENT VALUES FOR REAR AXLE VEHICLE LEVEL

Number	Designation			Model 164.172/195 with code 430, model 164.122/124/125/128/175/177/182/186 with code 489, with code 430, model 164.8	Model 164.172/195 without code 430, model 164.122/124/125/128/175/177/182/186 with code 489, without code 430
BE40.20-P-1001-03M	Vehicle level - rear axle		∠°	-1.1	-1, 5
BE40.20-P-1002-03M	Permissible difference in vehicle level between right and left side of vehicle	When checking	∠°	1.0	1.0
BE40.20-P-1002-03M		When calibrating with Star Diagnosis	∠°	0.8	0.8

TEST AND ADJUSTMENT VALUES FOR REAR AXLE VEHICLE LEVEL

Number	Designation			Model 164.120/121/156 without code 489, without code 430	Model 164.120/121/156 without code 489, with code 430
BE40.20-P-1001-03M	Vehicle level - rear axle		∠°	+0.6	+1.0
BE40.20-P-1002-03M	Permissible difference in vehicle level between right and left side of vehicle	When checking	∠°	1.0	1.0
BE40.20-P-1002-03M		When calibrating with Star Diagnosis	∠°	-	-

TEST AND ADJUSTMENT VALUES FOR REAR AXLE VEHICLE LEVEL

Number	Designation			Model 164.122/124/125/128/175/177/182/186, without code 489, without code 494, without code 430	Model 164.122/124/125/128/175/177/182/186, without code 489, without code 494, with code 430
BE40.20-P-1001-03M	Vehicle level - rear axle		∠°	+2.4	+3.0
BE40.20-P-1002-03M	Permissible difference in vehicle level between right and left side of vehicle	When checking	∠°	1.0	1.0
BE40.20-P-1002-03M		When calibrating with Star Diagnosis	∠°	-	-