Perform a wheel alignment check - AR40.20-P-0200AC

MODEL 460, 461, 463 

Fig 1: Checking Wheel Alignment

Courtesy of MERCEDES-BENZ USA

1	Checking and preparing for wheel alignment		AR40.20-P-0060AC
2	Position front wheels of vehicle on turnplates	If using an electronic measuring system with integrated turnplates, the measuring system must be approved by Mercedes-Benz.	AR40.20-P-0200-12AC
3	Insert brake pedal winch on brake pedal	Brake pedal winch	Fig 2
4	Open window
5	Switch off ignition
6	Fit quick-clamping devices on front and rear wheels		AR40.20-P-0230AC
7	Attach and calibrate measurement pickups	Refer to measuring system operating instructions.
8	Determine specified value for caster	Fluctuations in axle load for the various models will cause the caster angle to change depending on the vehicle load relative to the spring travel. It is not possible to correct the caster angle on the vehicle. The specified caster angle is changed only if the trailing arms are bent or the axle tubes are twisted.	AR40.20-P-0336AC
9	Release turnplates
10	Perform initial measurement	Refer to measuring system operating instructions.	*BE40.20-P-1001-11A
			*BE40.20-P-1002-11A
			*BE40.20-P-1003-11A
			*BE40.20-P-1004-11A
			*BE40.20-P-1005-11A
			*BE40.20-P-1006-11A
			*BE40.20-P-1001-11B
			*BE40.20-P-1001-12A
			*BE40.20-P-1002-12A
			*BE40.20-P-1003-12A
11	Evaluating measurement results	If no fault is found after evaluating the measurement results, the wheel alignment is complete. Proceed with step 14.
12	Adjust front axle toe		AR40.20-P-0323GG
13	Perform final measurement	Refer to measuring system operating instructions.	*BE40.20-P-1001-11A
			*BE40.20-P-1002-11A
			*BE40.20-P-1003-11A
			*BE40.20-P-1004-11A
			*BE40.20-P-1005-11A
			*BE40.20-P-1006-11A
			*BE40.20-P-1001-11B
			*BE40.20-P-1001-12A
			*BE40.20-P-1002-12A
			*BE40.20-P-1003-12A
14	Detach measurement sensors	Refer to measuring system operating instructions.
15	Remove quick-clamping devices from front and rear wheels		AR40.20-P-0230AC
16	Remove brake-pedal winch	Brake pedal jack	Fig 2
17	Lock turntables
18	Drive vehicle off measuring system
19	Check straight-line stability and turn-signal cancellation during a test drive

TEST VALUES FOR FRONT WHEEL ALIGNMENT

Number	Designation			Models 460, 461, 463 with front axle 730.3
BE40.20-P-1001-11A	Toe in	Specified value	∠°	0°
		permissible tolerance	∠°	±15'
BE40.20-P-1002-11A	Camber	Specified value	∠°	1°
		permissible tolerance		±30'
BE40.20-P-1003-11A	Caster	Specified value nomogram		AR40.20-P-0200-01AC
		-		AR40.20-P-0200-01AD
		-		AR40.20-P-0200-01AE
		permissible tolerance	∠°	±40'
		Permissible tolerance between left and right	∠°	±30'
BE40.20-P-1004-11A	Free spread	Specified value	∠°	9°
		permissible tolerance	∠°	20'
BE40.20-P-1005-11A	Toe-out on turns with the inside wheel steered through 20°	Specified value	∠°	2°30'
		permissible tolerance	∠°	±20'
BE40.20-P-1006-11A	Difference in wheelbase between left permissible tolerance and right sides		mm	5

TEST VALUES FOR STEERING ANGLE

Number	Designation			Model 460, 461, 463 with track width 1425 mm and tires 7.00 R16, 7.50 R16, 235/85 R16	Model 460, 461 with track width 1475 mm and tires 235/75 R17.5
BE40.20-P-1001-11B	Steering angle	Specified value	∠°	33°	33°
		permissible tolerance	∠°	±30'	±30'

TEST VALUES FOR STEERING ANGLE

Number	Designation			Model 460, 461, 463 with track width 1425 mm and tires 225/75 R16	Model 461 with track width 1555 mm and tires 265/75 R16, 8.25 R16
BE40.20-P-1001-11B	Steering angle	Specified value	∠°	35°	35°
		permissible tolerance	∠°	±30'	±30'

TEST VALUES FOR STEERING ANGLE

Number	Designation			Model 460, 461, 463 with track width 1425 mm and tires 205 R16	Model 461, 463 with track width 1475 mm and tires 225/75 R16, 235/85 R16
BE40.20-P-1001-11B	Steering angle	Specified value	∠°	35° 30'	35° 30'
		permissible tolerance	∠°	±30'	±30'

TEST VALUES FOR STEERING ANGLE

Number	Designation			Models 460, 461, 463 with track width 1475 mm (rim 7x15 ET 38) and tires 255/75 R16	Model 463 with track width 1475 mm and tires 255/65 R16, 265/70 R16, 265/60 R18, 275/55 R19
BE40.20-P-1001-11B	Steering angle	Specified value	∠°	35° 30'	35° 30'
		permissible tolerance	∠°	±30'	±30'

TEST VALUES FOR REAR AXLE ALIGNMENT

Number	Designation			Model 460, 461, 463 with rear axle 741.1/5/6 and 742.6
BE40.20-P-1001-12A	Toe in	Specified value	∠°	0°
		permissible tolerance	∠°	±10'
BE40.20-P-1002-12A	Camber	Specified value	∠°	0°
		permissible tolerance	∠°	(-40'/+20')
BE40.20-P-1003-12A	Permissible angular alignment	Specified value	∠°	0°10'

Fig 2: Identifying Brake Pedal Jack (000 589 18 31 00)

Courtesy of MERCEDES-BENZ USA