Checking alignment of spring control arm, camber strut, strut rod, thrust arm and tie rod on rear axle - AR40.30-P-0420A

MODEL 171 

Fig 1: Identifying Spring Link, Camber Arm, Radius Rod, Thrust Arm And Track Rod Of Rear Axle

Courtesy of MERCEDES-BENZ USA

	Check
	Risk of death  cased by vehicle slipping or toppling off of the lifting platform.	Align vehicle between the columns of the hydraulic hoist and position the four support plates below the hoist support points specified by the vehicle manufacturer.	-
1	Carry out visual inspection	Check individual parts for damage, corrosion and wear
	Measuring camber strut
2	Remove camber strut (2)	-	-
		Model 171	AR35.20-P-0110V
		-	-
3	Insert measuring pins (041a, 041b)
	Measuring pin for rear-axle wheel control		WF58.50-P-4030-01A
4	Measure dimension (L1) on both sides		BE40.30-P-1001-03A
		Measuring caliper	WH58.30-Z-1006-12A
5	Remove measuring pins (041a, 041b)
	Measuring pin for rear-axle wheel control		WF58.50-P-4030-01A
6	Install camber strut (2)	-	-
		Model 171	AR35.20-P-0110V
		-	-
	Measuring tension arm
7	Remove torque strut (3)	-	-
		Model 171	AR35.20-P-0111V
		-	-
8	Insert measuring pins (041b, 041c)
	Measuring pin for rear-axle wheel control		WF58.50-P-4030-01A
9	Measure dimension (L4) on both sides		BE40.30-P-1001-03A
		Measuring caliper	*WH58.30-Z-1006-12A
10	Remove measuring pins (041b, 041c)
	Measuring pin for rear-axle wheel control		WF58.50-P-4030-01A
11	Install torque strut (3)	-	-
		Model 171	AR35.20-P-0111V
		-	-
	Measuring track rod
12	Remove tie rod (4)	-	-
		Model 171	AR35.20-P-0112V
		-	-
13	Insert measuring pin (041b).	Mark center point of tie rod end.
	Measuring pin for rear-axle wheel control		WF58.50-P-4030-01A
14	Measure dimension (L3)		BE40.30-P-1001-03A
		Caliper gage, measuring range up to 400 mm	WH58.30-Z-1006-12A
15	Remove measuring pin (041b).
	Measuring pin for rear-axle wheel control		WF58.50-P-4030-01A
16	Install tie rod (4)	-	-
		Model 171	AR35.20-P-0112V
		-	-
	Measuring torque strut
17	Remove thrust arm (5)	-	-
		Model 171	AR35.20-P-0113V
		-	-
18	Insert measuring pins (041b, 041c)
	Measuring pin for rear-axle wheel control		WF58.50-P-4030-01A
19	Measure dimension (L2) on both sides		BE40.30-P-1001-03A
		Caliper gage, measuring range up to 400 mm	WH58.30-Z-1006-12A
20	Remove measuring pins (041b, 041c)
	Measuring pin for rear-axle wheel control		WF58.50-P-4030-01A
21	Install thrust arm (5)	-	-
		Model 171	AR35.20-P-0113V
		-	-
	Measuring spring link
22	Remove spring link (6)	-	-
		Model 171	AR35.20-P-0119V
		-	-
23	Insert measuring pins (041d, 041e)
	Measuring pin for rear-axle wheel control		WF58.50-P-4030-01A
24	Measure dimension (L5) on both sides		BE40.30-P-1001-03A
		Telescopic measuring rod	*124589011900
25	Remove measuring pins (041d, 041e)
	Measuring pin for rear-axle wheel control		WF58.50-P-4030-01A
26	Install spring link (6)	-	-
		Model 171	AR35.20-P-0119V
		-	-

TEST VALUES FOR TORQUE STRUT/TENSION ARM/CAMBER STRUT, SPRING LINK, TRACK ROD ON REAR AXLE

Number	Designation			Model 171
BE40.30-P-1001-03A	Dim.	Camber strut "L1"	mm	298.5 (±0.5)
		Torque strut "L2"	mm	314.5 (±0.5)
		Track rod "L3"	mm	257 (± 0.5)
		Tension arm "L4"	mm	247 (± 0.3)
		Spring link "L5"	mm	466.1 (±0.5)
		For picture, see		AR40.30-P-0420A

Fig 2: Identifying Telescopic Measuring Rod (124 589 01 19 00)

Courtesy of MERCEDES-BENZ USA

COMMERCIALLY AVAILABLE TOOLS

Number	Designation
WH58.30-Z-1006-12A	Caliper gauge