Perform Wheel Alignment Check - Ar40.20-D-0200H

MODEL 906

	Measure
1	Observe general information on chassis alignment		AR40.20-D-0201H
2	Drive vehicle on to measuring system	The measuring system must be approved by Mercedes-Benz.
3	Insert brake pedal jack between brake pedal and driver seat	Use the brake pedal jack carefully. The driver seat can otherwise be damaged. You only need apply slight pressure to the brake pedal.
3	Insert brake pedal jack between brake pedal and driver seat	Brake pedal jack	Fig 1
4.1	Move gearshift lever to "neutral" position	For vehicles fitted with a manual transmission
4.2	Move selector lever to "P" position	On vehicles with automatic transmission
5	Lower window of driver door	Lower the window for the steering angle routine, get out of the vehicle and close the driver door. The vehicle must not be loaded again.
6	Attach universal quick-clamp holder
7	Fit on measuring heads
8	Compensate rim runout
9	Unlock turntables
10.1	Determine front-axle level using electronic	When measuring with electronic inclinometer. inclinometer
10.1	Determine front-axle level using electronic		AR40.20-D-6870H
10.2	Determine front-axle level through actual front-axle load	In the case of measurement without an electronic inclinometer.
11	Determine vehicle level through damper dimension	MODEL 906 except all-wheel drive	AR40.20-D-0200-05H
		MODEL 906 with all-wheel drive	AR40.20-D-0200-05HA
		The vehicle level has to be determined to enable the caster and steering axis inclination to be measured.
12	Carry out initial measurement	During the initial measurement, the actual suspension data such as camber, toe, steering axis inclination, caster and toe-out angle are determined.
13	Check and adjust camber and caster at front	MODEL 906 with CODE XL7 (Weight axle variant 4050 kg)	AR40.20-D-0322M
		MODEL 906 with CODE A50 (Front axle reinforced) with CODE C15 (Vehicle lowering)	AR40.20-D-0322L
		MODEL 906 with CODE C15 (Vehicle lowering) except CODE A50 (Front axle reinforced)	AR40.20-D-0322K
		MODEL 906 with CODE ZU8 (National version for USA) without CODE A50 (Front axle reinforced) without CODE RH9 (Super-single tyres, 285/65 R16 C) without CODE ZG1 (Engageable all-wheel drive) without CODE ZG2 (Permanent all-wheel drive) without CODE ZG3 (Engageable all-wheel drive with gear reduction) without CODE ZG4 (Permanent all-wheel drive with gear reduction)	AR40.20-D-0322F
		MODEL 906 with CODE A50 (Front axle reinforced) without CODE C15 (Vehicle lowering) without CODE XL7 (Weight variant 4.050 kg) without CODE ZG1 (Engageable all-wheel drive) without CODE ZG2 (Permanent all-wheel drive) without CODE ZG3 (Engageable all-wheel drive with gear reduction) without CODE ZG4 (Permanent all-wheel drive with gear reduction) without CODE ZU8 (National version for USA) MODEL 906 without CODE XB6 (Weight variant 4200 kg)	AR40.20-D-0322B
		MODEL 906 with CODE ZU8 (National version for USA) without CODE ZG1 (Engageable all-wheel drive) without CODE ZG2 (Permanent all-wheel drive) without CODE ZG3 (Engageable all-wheel drive with gear reduction) without CODE ZG4 (Permanent all-wheel drive with gear reduction)	AR40.20-D-0322C
		MODEL 906 without CODE A50 (Front axle reinforced) without CODE ZG1 (Engageable all-wheel drive) without CODE ZG2 (Permanent all-wheel drive) without CODE ZG3 (Engageable all-wheel drive with gear reduction) without CODE ZG4 (Permanent all-wheel drive with gear reduction) without CODE ZU8 (National version for USA)	AR40.20-D-0322D
		MODEL 906 with CODE XB6 (Weight variant 4200 kg) MODEL 906 with CODE A50 (Front axle reinforced) without CODE ZG1 (Engageable all-wheel drive) without CODE ZG2 (Permanent all-wheel drive) without CODE ZG3 (Engageable all-wheel drive with gear reduction) without CODE ZG4 (Permanent all-wheel drive with gear reduction) without CODE ZU8 (National version for USA) MODEL 906 with CODE A50 (Front axle reinforced) with CODE RH9 (Super-single tyres, 285/65 R16 C) with CODE ZU8 (National version for USA) without CODE ZG1 (Engageable all-wheel drive) without CODE ZG2 (Permanent all-wheel drive) without CODE ZG3 (Engageable all-wheel drive with gear reduction) without CODE ZG4 (Permanent all-wheel drive with gear reduction)	AR40.20-D-0322E
		906 without CODE A50 (Front axle reinforced) without CODE C15 (Vehicle lowering) without CODE XL7 (Weight variant 4.050 kg) without CODE ZG1 (Engageable all-wheel drive) without CODE ZG2 (Permanent all-wheel drive) without CODE ZG3 (Engageable all-wheel drive with gear reduction) without CODE ZG4 (Permanent all-wheel drive with gear reduction) without CODE ZU8 (National version for USA)	AR40.20-D-0322H
		MODEL 906 with CODE A50 (Front axle reinforced) with CODE ZU8 (National version for USA) without CODE RH9 (Super-single tyres, 285/65 R16 C) without CODE ZG1 (Engageable all-wheel drive) without CODE ZG2 (Permanent all-wheel drive) without CODE ZG3 (Engageable all-wheel drive with gear reduction) without CODE ZG4 (Permanent all-wheel drive with gear reduction)	AR40.20-D-0322G
		MODEL 906 with CODE ZG1 (Engageable all-wheel drive) with CODE ZG2 (Permanent all-wheel drive) with CODE ZG3 (Engageable all-wheel drive with gear reduction) with CODE ZG4 (Permanent all-wheel drive with gear reduction)	AR40.20-D-0322I
		MODEL 906 with CODE ZG1 (Engageable all-wheel drive) with CODE ZG2 (Permanent all-wheel drive) with CODE ZG3 (Engageable all-wheel drive with gear reduction) with CODE ZG4 (Permanent all-wheel drive with gear reduction) The caster is design specific and it cannot be adjusted.	AR40.20-D-0322J
14	Check and adjust front axle toe	MODEL 906 with CODE XL7 (Weight variant 4050 kg)	AR40.20-D-0323N
		MODEL 906 with CODE A50 (Front axle reinforced) with CODE C15 (Vehicle lowering)	AR40.20-D-0323M
		MODEL 906 with CODE C15 (Vehicle lowering) except CODE A50 (Front axle reinforced)	AR40.20-D-0323L
		MODEL 906 without CODE A50 (Front axle reinforced) without CODE C15 (Vehicle lowering) without CODE XL7 (Weight variant 4.050 kg) without CODE ZG1 (Engageable all-wheel drive) without CODE ZG2 (Permanent all-wheel drive) without CODE ZG3 (Engageable all-wheel drive with gear reduction) without CODE ZG4 (Permanent all-wheel drive with gear reduction) without CODE ZU8 (National version for USA)	AR40.20-D-0323H
		MODEL 906 with CODE A50 (Front axle reinforced) without CODE C15 (Vehicle lowering) without CODE XL7 (Weight variant 4.050 kg) without CODE ZG1 (Engageable all-wheel drive) without CODE ZG2 (Permanent all-wheel drive) without CODE ZG3 (Engageable all-wheel drive with gear reduction) without CODE ZG4 (Permanent all-wheel drive with gear reduction) without CODE ZU8 (National version for USA) MODEL 906 without CODE XB6 (Weight variant 4200 kg)	AR40.20-D-0323C
		MODEL 906 with CODE ZU8 (National version for USA) without CODE ZG1 (Engageable all-wheel drive) without CODE ZG2 (Permanent all-wheel drive) without CODE ZG3 (Engageable all-wheel drive with gear reduction) without CODE ZG4 (Permanent all-wheel drive with gear reduction)	AR40.20-D-0323D
		MODEL 906 without CODE A50 (Front axle reinforced) without CODE ZG1 (Engageable all-wheel drive) without CODE ZG2 (Permanent all-wheel drive) without CODE ZG3 (Engageable all-wheel drive with gear reduction) without CODE ZG4 (Permanent all-wheel drive with gear reduction) without CODE ZU8 (National version for USA)	AR40.20-D-0323E
		MODEL 906 with CODE XB6 (Weight variant 4200 kg) MODEL 906 with CODE A50 (Front axle reinforced) without CODE ZG1 (Engageable all-wheel drive) without CODE ZG2 (Permanent all-wheel drive) without CODE ZG3 (Engageable all-wheel drive with gear reduction) without CODE ZG4 (Permanent all-wheel drive with gear reduction) without CODE ZU8 (National version for USA) MODEL 906 with CODE A50 (Front axle reinforced) with CODE RH9 (Super-single tyres, 285/65 R16 C) with CODE ZU8 (National version for USA) without CODE ZG1 (Engageable all-wheel drive) without CODE ZG2 (Permanent all-wheel drive) without CODE ZG3 (Engageable all-wheel drive with gear reduction) without CODE ZG4 (Permanent all-wheel drive with gear reduction)	AR40.20-D-0323F
		MODEL 906 with CODE ZU8 (National version for USA) without CODE A50 (Front axle reinforced) without CODE RH9 (Super-single tyres, 285/65 R16 C) without CODE ZG1 (Engageable all-wheel drive) without CODE ZG2 (Permanent all-wheel drive) without CODE ZG3 (Engageable all-wheel drive with gear reduction) without CODE ZG4 (Permanent all-wheel drive with gear reduction)	AR40.20-D-0323G
		MODEL 906 with CODE A50 (Front axle reinforced) with CODE ZU8 (National version for USA) without CODE RH9 (Super-single tyres, 285/65 R16 C) without CODE ZG1 (Engageable all-wheel drive) without CODE ZG2 (Permanent all-wheel drive) without CODE ZG3 (Engageable all-wheel drive with gear reduction) without CODE ZG4 (Permanent all-wheel drive with gear reduction)	AR40.20-D-0323I
		MODEL 906 with CODE ZG1 (Engageable all-wheel drive) with CODE ZG2 (Permanent all-wheel drive) with CODE ZG3 (Engageable all-wheel drive with gear reduction) with CODE ZG4 (Permanent all-wheel drive with gear reduction)	AR40.20-D-0323J
		MODEL 906 with CODE ZG1 (Engageable all-wheel drive) with CODE ZG2 (Permanent all-wheel drive) with CODE ZG3 (Engageable all-wheel drive with gear reduction) with CODE ZG4 (Permanent all-wheel drive with gear reduction)	AR40.20-D-0323K
15	Check steering axis inclination of front axle		AR40.20-D-0340H
15	Check steering axis inclination of front axle	The steering axis inclination is structurally preconfigured and cannot be adjusted.
16	Check toe-in, angular alignment and camber at rear axle	MODEL 906 These values are design specific and they cannot be adjusted.
		Toe-in	BE40.20-N-1001-12A
		Inclination of rear wheels (individual toe-in) = Maximum angular alignment of rear axle	BE40.20-N-1002-12A
		Camber	BE40.20-N-1003-12A
17	Check and adjust toe on rear axle	MODEL 906	AR40.20-D-0332H
18	Checking rear axle camber	MODEL 906 The camber is design specific and it cannot be adjusted.	AR40.20-D-0331H
19	Carry out final measurement
20	Detach measuring heads
21	Detach universal quick-clamp holder
22	Remove brake-pedal winch
23	Drive vehicle off measuring system
24	Lock turntables

CHECK VALUES FOR REAR AXLE ALIGNMENT

Number	Designation			MODEL 906	MODEL 906
BE40.20-N-1001-12A	Toe-in	Tolerance max.	∠°	0° 7' 30" (±15')	0° (±15')

CHECK VALUES FOR REAR AXLE ALIGNMENT

Number	Designation			MODEL 906
BE40.20-N-1002-12A	Inclination of rear wheels (individual toe-in) = Maximum angular alignment of rear axle	Tolerance max.	∠°	0° 15'

CHECK VALUES FOR REAR AXLE ALIGNMENT

Number	Designation			MODEL 906
BE40.20-N-1003-12A	Camber	Tolerance max.	∠°	0° (±20')

Fig 1: Brake Pedal Jack (000 589 18 31 00)

Courtesy of MERCEDES-BENZ USA