Adjust Camber And Caster On Rear Axle - AR40.20-P-0267RQ

Model 190, 197

MODIFICATION NOTES

04.08.2020

Check whether the basic setting of the rear axle is set on the lower control arm.

Operation step 2.

Camber

Courtesy of MERCEDES-BENZ USA

Run-on

Courtesy of MERCEDES-BENZ USA

	Risk of death caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.	AS00.00-Z-0010-01A
Topical note	Notes on repairs to brake system		AH42.00-P-0003-01A
Topical note	Notes on handling, transport and storage of ceramic brake disks		AH42.10-P-9406-13A
Topical note	Notes on threaded connections fastened using a tightening angle-based tightening process		AH00.00-P-0020-01A
	Notes on repair work on suspension components		AH00.00-P-0100-01A
	Adjust
1	Lift vehicle with vehicle lift.	Model 190	AR00.60-P-1000RG
		Model 197	AR00.60-P-1000RQ
		Never raise vehicle at front or rear axle. Otherwise the axle will be damaged.
		Raise vehicle at side on vehicle jack lift support point
	Check
2	Check whether the basic setting of the rear axle is set on the lower control arm.	Model 190 with code M032 (Black Series version)
		For basic setting of the rear axle, the groove of the adjusting shim on the bolt head points toward the vehicle center.
		If the basic setting is not set: ↓ Turn groove on adjusting shim toward vehicle center.
		Nut, lower transverse control arm to wheel carrier	*BA35.20-P-1003-07D
3	Replace screw (19a), washers (19b), adjusting shims (19c) and nut (19d).		AR40.20-P-0263-01RQ
		Assign suspension data. Model 190	AR40.20-P-0203RQ
		Attach nut (19d) of screw (19a) up to contact surface, but do not yet tighten. So that the elastomer bearing of the lower control arm (18) can turn when the suspension is compressed.
		The adjusting shims (19c) for each lower control arm (18) must have the same number on both elastomer bearings (front and rear).
		The camber can be changed by changing the position of the screw (19a). Adjusting the front lower control arm toward the vehicle center (arrow a) causes a positive camber change (St+). Adjusting the front lower control arm toward the outside of the vehicle (arrow b) causes a negative camber change (St-).
		The caster can be changed by using different adjusting shims (19c). Adjusting the rear lower control arm toward the outside of the vehicle (arrow c) causes a positive caster change (NL+). Adjusting the rear lower control arm toward the vehicle center (arrow d) causes a negative caster change (NL-).
		Model 197 as of 9/1/12 except code P98 (Black Series) Model 197 up to 8/31/12 except code P98 (Black Series) Model 197 with code P98 (Black Series)	*BE40.20-P-1001-09N
		Camber at vehicle level
		Model 197 as of 9/1/12 except code P98 (Black Series) Model 197 up to 8/31/12 except code P98 (Black Series) Model 197 with code P98 (Black Series)	*BE40.20-P-1002-09N
		Permissible difference in rear axle camber between right and left side of vehicle
		If screw (19a), washers (19b), adjusting shims (19c) and nut (19d) have been replaced: ↓ Check camber and caster.
		Check caster, match with value in table Model 190	AR40.20-P-0203RQ
		Check caster and assign to tabular value Model 197	AR40.20-P-0322-03RQ
		Model 197 as of 9/1/12 except code P98 (Black Series) Model 197 up to 8/31/12 except code P98 (Black Series) Model 197 with code P98 (Black Series)	*BE40.20-P-1001-20F
		Caster values, form
		Model 197 as of 9/1/12 except code P98 (Black Series) Model 197 up to 8/31/12 except code P98 (Black Series) Model 197 with code P98 (Black Series)	*BE40.20-P-1002-20F
		Permissible difference in caster between right and left side of vehicle
		Model 197 as of 9/1/12 except code P98 (Black Series) Model 197 up to 8/31/12 except code P98 (Black Series) Model 197 with code P98 (Black Series)	*BE40.20-P-1003-20F
		Absolute caster tolerance
		Model 197 as of 9/1/12 except code P98 (Black Series) Model 197 up to 8/31/12 except code P98 (Black Series) Model 197 with code P98 (Black Series)	*BE40.20-P-1001-09N
		Camber at vehicle level
		Model 197 as of 9/1/12 except code P98 (Black Series) Model 197 up to 8/31/12 except code P98 (Black Series) Model 197 with code P98 (Black Series)	*BE40.20-P-1002-09N
		Permissible difference in rear axle camber between right and left side of vehicle
4	Check vehicle level on rear axle again after camber and caster adjustment.		AR40.20-P-0302RQ
		The vehicle level must correspond to the quoted specified values.
5	Tighten nut (19d) of screw (19a).	Bolt, lower transverse control arm to body	*BA35.20-P-1004-07D

CHECK VALUES FOR REAR AXLE CAMBER

Number	Designation			Model 197 up to 8/31/12 except code P98 (Black Series)	Model 197 as of 9/1/12 except code P98 (Black Series)
BE40.20-P-1001-09N	Camber at vehicle level	4.96°	∠°	-	-
		6.63°	∠°	-	-1° 55' (±10')
		7.18°	∠°	-1° 50' (±10')	-

CHECK VALUES FOR REAR AXLE CAMBER

Number	Designation			Model 197 with code P98 (Black Series)
BE40.20-P-1001-09N	Camber at vehicle level	4.96°	∠°	-2° 13' (±10)
		6.63°	∠°	-
		7.18°	∠°	-