Wheel alignment measurement in case of elevated tire wear · ar4020s020020a · Mercedes-Benz WIS

AR40.20-S-0200-20A

Wheel alignment measurement in case of elevated tire wear

Model	447 with engine 622, 651, 654.9, 780.701/702
Model	447, 448 with engine 274

Modification notes

03.03.2020	Total toe	Model 447 with engine 274, 651, 654.9 model 448 with engine 274	BE40.20-N-1001-10Q
07.09.2020	Sturz	Typ 447 mit Motor 654.9 mit Code CA4, ZG2	BE40.20-N-1001-13Y

Front axle toe

Number	Designation				Model 447 with engine 274, model 447 with engine 651 except code ZG2, model 447 with engine 654.9 except code ZG2 CA4, model 448 with engine 274 except code CA4	Model 447 with engine 651 with code ZG2, model 447 with engine 654.9 with code ZG2, except code CA4
BE40.20-N-1001-07KA	Total toe	at vehicle level	-5.10°	°	-1°00' ( 10')	-0° 06' ( 10')
			-4.30°	°	-0° 56' ( 10')	+0° 00' ( 10')
			-2.70°	°	-0° 48' ( 10')	+0° 10' ( 10')
			-1.10°	°	-0° 40' ( 10')	+0° 20' ( 10')
			+0.50°	°	-0° 32' ( 10')	+0° 30' ( 10')
			+2.10°	°	-0° 24' ( 10')	+0° 40' ( 10')
			+3.70°	°	-0° 17' ( 10')	+0° 49' ( 10')
			+5.30°	°	-0° 10' ( 10')	+0° 58' ( 10')
			+6.90°	°	-0° 03' ( 10')	+1° 06' ( 10')
			+8.50°	°	+0° 03' ( 10')	+1° 13' ( 10')
			+10.10°	°	+0° 08' ( 10')	+1° 19' ( 10')
			+11.70°	°	+0° 13' ( 10')	+1° 24' ( 10')
			+13.30°	°	+0° 18' ( 10')	+1° 28' ( 10')
		Vehicle level regulated (air suspension on "Comfort" setting)	-4.47°	°	-	-
			+2.05°	°	-	-
			+9.22°	°	-	-

Front axle toe

Number	Designation				Model 447 with engine 622 Model 447 with engine 780.701	Model 447 with engine 780.702 except code CA4
BE40.20-N-1001-07KA	Total toe	at vehicle level	-5.10°	°	-1° 22' ( 10')	-1° 18' ( 10')
			-4.30°	°	-1° 13' ( 10')	-1° 09' ( 10')
			-2.70°	°	-0° 57' ( 10')	-0° 51' ( 10')
			-1.10°	°	-0° 42' ( 10')	-0° 36' ( 10')
			+0.50°	°	-0° 27' ( 10')	-0° 21' ( 10')
			+2.10°	°	-0° 14' ( 10')	-0° 08' ( 10')
			+3.70°	°	-0° 02' ( 10')	+0° 04' ( 10')
			+5.30°	°	+0° 09' ( 10')	+0° 15' ( 10')
			+6.90°	°	+0° 19' ( 10')	+0° 25' ( 10')
			+8.50°	°	+0° 29' ( 10')	+0° 35' ( 10')
			+10.10°	°	+0° 38' ( 10')	+0° 43' ( 10')
			+11.70°	°	+0° 47' ( 10')	+0° 52' ( 10')
			+13.30°	°	+0° 56' ( 10')	+1° 00' ( 10')
		Vehicle level regulated (air suspension on "Comfort" setting)	-4.47°	°	-	-
			+2.05°	°	-	-
			+9.22°	°	-	-

Front axle toe

Number	Designation				Model 447 with engine 654.9 with code CA4, ZG2	Model 447 with engine 780.702 with code CA4
BE40.20-N-1001-07KA	Total toe	at vehicle level	-5.10°	°	-	-
			-4.30°	°	-	-
			-2.70°	°	-	-
			-1.10°	°	-	-
			+0.50°	°	-	-
			+2.10°	°	-	-
			+3.70°	°	-	-
			+5.30°	°	-	-
			+6.90°	°	-	-
			+8.50°	°	-	-
			+10.10°	°	-	-
			+11.70°	°	-	-
			+13.30°	°	-	-
		Vehicle level regulated (air suspension on "Comfort" setting)	-4.47°	°	+0° 01' ( 10')	-
			+2.05°	°	-	-0° 06' ( 10')
			+9.22°	°	-	-

Front axle toe

Number	Designation				Model 447 with engine 654.9 with code CA4, except code ZG2, model 448 with engine 274 with code CA4
BE40.20-N-1001-07KA	Total toe	at vehicle level	-5.10°	°	-
			-4.30°	°	-
			-2.70°	°	-
			-1.10°	°	-
			+0.50°	°	-
			+2.10°	°	-
			+3.70°	°	-
			+5.30°	°	-
			+6.90°	°	-
			+8.50°	°	-
			+10.10°	°	-
			+11.70°	°	-
			+13.30°	°	-
		Vehicle level regulated (air suspension on "Comfort" setting)	-4.47°	°	-
			+2.05°	°	-
			+9.22°	°	+0° 04' ( 10')

Rear axle toe

Number	Designation				Model 447 with engine 274, 651, model 447 with engine 654.9 except code CA4, model 448 with engine 274 except code CA4	Model 447 with engine 622, 780.701, model 447 with engine 780.702 except code CA4
BE40.20-N-1001-10Q	Total toe	at vehicle level	+7.92°	°	-0° 40' (+20'/-12')	+2° 08' (+20'/-12')
			+6.92°	°	-0° 35' (+20'/-12')	+1° 57' (+20'/-12')
			+6.14°	°	-0° 31' (+20'/-12')	+1° 49' (+20'/-12')
			+5.35°	°	-0° 27' (+20'/-12')	+1° 41' (+20'/-12')
			+4.57°	°	-0° 22' (+20'/-12')	+1° 33' (+20'/-12')
			+3.78°	°	-0° 17' (+20'/-12')	+1° 26' (+20'/-12')
			+3.00°	°	-0° 13' (+20'/-12')	+1° 18' (+20'/-12')
			+2.21°	°	-0° 07' (+20'/-12')	+1° 11' (+20'/-12')
			+1.43°	°	-0° 02' (+20'/-12')	+1° 05' (+20'/-12')
			+0.64°	°	+0° 03' (+20'/-12')	+0° 57' (+20'/-12')
			+0.14°	°	+0° 07' (+20'/-12')	+0° 52' (+20'/-12')
			-0.93°	°	+0° 15' (+20'/-12')	+0° 43' (+20'/-12')
			-1.71°	°	+0° 21' (+20'/-12')	+0° 37' (+20'/-12')
			-2.50°	°	+0° 28' (+20'/-12')	+0° 31' (+20'/-12')
			-3.28°	°	+0° 35' (+20'/-12')	+0° 25' (+20'/-12')
			-4.07°	°	+0° 41' (+20'/-12')	+0° 19' (+20'/-12')
			-4.85°	°	+0° 49' (+20'/-12')	+0° 13' (+20'/-12')
			-5.64°	°	+0° 56' (+20'/-12')	+0° 08' (+20'/-12')
			-6.74°	°	+1° 07' (+20'/-12')	+0° 01' (+20'/-12')
		Vehicle level regulated (air suspension on "Comfort" setting)	-2.20°	°	-	-
			-2.70°	°	-	-
			-3.20°	°	-	-

Rear axle toe

Number	Designation				Model 447 with engine 654.9 with code CA4, ZG2	Model 447 with engine 654.9 with code CA4 except code ZG2, model 448 with engine 274 with code CA4
BE40.20-N-1001-10Q	Total toe	at vehicle level	+7.92°	°		-
			+6.92°	°		-
			+6.14°	°		-
			+5.35°	°		-
			+4.57°	°		-
			+3.78°	°		-
			+3.00°	°		-
			+2.21°	°		-
			+1.43°	°		-
			+0.64°	°		-
			+0.14°	°		-
			-0.93°	°		-
			-1.71°	°		-
			-2.50°	°		-
			-3.28°	°		-
			-4.07°	°		-
			-4.85°	°		-
			-5.64°	°		-
			-6.74°	°		-
		Vehicle level regulated (air suspension on "Comfort" setting)	-2.20°	°	+0° 12' (+20'/-12')	-
			-2.70°	°	-	+0° 12' (+20'/-12')
			-3.20°	°	-	-

Rear axle toe

Number	Designation				Model 447 with engine 780.702 with code CA4
BE40.20-N-1001-10Q	Total toe	at vehicle level	+7.92°	°	-
			+6.92°	°	-
			+6.14°	°	-
			+5.35°	°	-
			+4.57°	°	-
			+3.78°	°	-
			+3.00°	°	-
			+2.21°	°	-
			+1.43°	°	-
			+0.64°	°	-
			+0.14°	°	-
			-0.93°	°	-
			-1.71°	°	-
			-2.50°	°	-
			-3.28°	°	-
			-4.07°	°	-
			-4.85°	°	-
			-5.64°	°	-
			-6.74°	°	-
		Vehicle level regulated (air suspension on "Comfort" setting)	-2.20°	°	-
			-2.70°	°	-
			-3.20°	°	+0° 18' (+20'/-12')

Front axle camber

Number	Designation				Model 447 with engine 651, with code ZG2, model 447 with engine 654.9 with code ZG2, except code CA4	Model 447 with engine 274 except code CF8, model 447 with engine 651 except code CF8, ZG2, model 447 with engine 654.9 except code CA4, except code, CF8, ZG2 model 448 with engine 274 except code CA4
BE40.20-N-1001-13Y	Camber	at vehicle level	-5.10°	°	-0° 56' ( 19')	-1° 10' ( 19')
			-4.30°	°	-0° 52' ( 19')	-1° 12' ( 19')
			-2.70°	°	-0° 43' ( 19')	-1° 15' ( 19')
			-1.10°	°	-0° 32' ( 19')	-1° 16' ( 19')
			+0.50°	°	-0° 19' ( 19')	-1° 16' ( 19')
			+2.10°	°	-0° 05' ( 19')	-1° 15' ( 19')
			+3.70°	°	+0° 11' ( 19')	-1° 12' ( 19')
			+5.30°	°	+0° 28' ( 19')	-1° 08' ( 19')
			+6.90°	°	+0° 46' ( 19')	-1° 03' ( 19')
			+8.50°	°	+1° 06' ( 19')	-0° 57' ( 19')
			+10.10°	°	+1° 27' ( 19')	-0° 50' ( 19')
			+11.70°	°	+1° 50' ( 19')	-0° 41' ( 19')
			+13.30°	°	+2° 13' ( 19')	-0° 32' ( 19')
		Vehicle level regulated (air suspension on "Comfort" setting)	-4.47°	°	-	-
			+2.05°	°	-	-
			+9.22°	°	-	-

Front axle camber

Number	Designation				Model 447 with engine 274 with code CF8, model 447 with engine 651 with code CF8, except code ZG2, model 447 with engine 654.9 with code CF8, except code CA4, ZG2	Model 447 with engine 622, model 447 with engine 780.701
BE40.20-N-1001-13Y	Camber	at vehicle level	-5.10°	°	-0° 55' ( 19')	-0° 40' ( 19')
			-4.30°	°	-0° 57' ( 19')	-0° 42' ( 19')
			-2.70°	°	-1° 00' ( 19')	-0° 43' ( 19')
			-1.10°	°	-1° 01' ( 19')	-0° 43' ( 19')
			+0.50°	°	-1° 01' ( 19')	-0° 42' ( 19')
			+2.10°	°	-1° 00' ( 19')	-0° 38' ( 19')
			+3.70°	°	-0° 57' ( 19')	-0° 34' ( 19')
			+5.30°	°	-0° 53' ( 19')	-0° 28' ( 19')
			+6.90°	°	-0° 48' ( 19')	-0° 20' ( 19')
			+8.50°	°	-0° 42' ( 19')	-0° 11' ( 19')
			+10.10°	°	-0° 35' ( 19')	-0° 02' ( 19')
			+11.70°	°	-0° 26' ( 19')	+0° 10' ( 19')
			+13.30°	°	-0° 17' ( 19')	+0° 22' ( 19')
		Vehicle level regulated (air suspension on "Comfort" setting)	-4.47°	°	-	-
			+2.05°	°	-	-
			+9.22°	°	-	-

Front axle camber

Number	Designation				Model 447 with engine 780.702 except code CA4	Model 447 with engine 654.9 with code CA4, ZG2
BE40.20-N-1001-13Y	Camber	at vehicle level	-5.10°	°	-0° 46' ( 19')	-
			-4.30°	°	-0° 47' ( 19')	-
			-2.70°	°	-0° 47' ( 19')	-
			-1.10°	°	-0° 45' ( 19')	-
			+0.50°	°	-0° 41' ( 19')	-
			+2.10°	°	-0° 36' ( 19')	-
			+3.70°	°	-0° 28' ( 19')	-
			+5.30°	°	-0° 19' ( 19')	-
			+6.90°	°	-0° 08' ( 19')	-
			+8.50°	°	+0° 04' ( 19')	-
			+10.10°	°	+0° 17' ( 19')	-
			+11.70°	°	+0° 32' ( 19')	-
			+13.30°	°	+0° 48' ( 19')	-
		Vehicle level regulated (air suspension on "Comfort" setting)	-4.47°	°	-	-0° 48' ( 19')
			+2.05°	°	-	-
			+9.22°	°	-	-

Front axle camber

Number	Designation				Model 447 with engine 654.9 with code CA4, except code ZG2, model 448 with engine 274 with code CA4	Model 447 with engine 780.702 with code CA4
BE40.20-N-1001-13Y	Camber	at vehicle level	-5.10°	°	-	-
			-4.30°	°	-	-
			-2.70°	°	-	-
			-1.10°	°	-	-
			+0.50°	°	-	-
			+2.10°	°	-	-
			+3.70°	°	-	-
			+5.30°	°	-	-
			+6.90°	°	-	-
			+8.50°	°	-	-
			+10.10°	°	-	-
			+11.70°	°	-	-
			+13.30°	°	-	-
		Vehicle level regulated (air suspension on "Comfort" setting)	-4.47°	°	-	-
			+2.05°	°	-0° 36' ( 19')	-
			+9.22°	°	-	-0° 54' ( 19')

Front axle toe

Number	Designation		Model 447 with engine 274, model 447 with engine 651 except code ZG2, model 447 with engine 654.9 except code ZG2 CA4, model 448 with engine 274 except code CA4	Model 447 with engine 651 with code ZG2, model 447 with engine 654.9 with code ZG2, except code CA4
BE40.20-N-1002-07KA	Permissible difference in front axle toe between right and left sides of vehicle	°	 10'	 10'

Front axle toe

Number	Designation		Model 447 with engine 622 Model 447 with engine 780.701	Model 447 with engine 780.702 except code CA4
BE40.20-N-1002-07KA	Permissible difference in front axle toe between right and left sides of vehicle	°	 10'	 10'

Front axle toe

Number	Designation		Model 447 with engine 654.9 with code CA4, ZG2	Model 447 with engine 780.702 with code CA4
BE40.20-N-1002-07KA	Permissible difference in front axle toe between right and left sides of vehicle	°	 10'	 10'

Front axle toe

Number	Designation		Model 447 with engine 654.9 with code CA4, except code ZG2, model 448 with engine 274 with code CA4
BE40.20-N-1002-07KA	Permissible difference in front axle toe between right and left sides of vehicle	°	 10'

Rear axle toe

Number	Designation		Model 447 with engine 274, 651, model 447 with engine 654.9 except code CA4, model 448 with engine 274 except code CA4	Model 447 with engine 622, 780.701, model 447 with engine 780.702 except code CA4
BE40.20-N-1002-10Q	Permissible difference in rear axle toe between right and left sides of vehicle	°	 16'	 16'

Rear axle toe

Number	Designation		Model 447 with engine 654.9 with code CA4, ZG2	Model 447 with engine 654.9 with code CA4 except code ZG2, model 448 with engine 274 with code CA4
BE40.20-N-1002-10Q	Permissible difference in rear axle toe between right and left sides of vehicle	°	 16'	 16'

Rear axle toe

Number	Designation		Model 447 with engine 780.702 with code CA4
BE40.20-N-1002-10Q	Permissible difference in rear axle toe between right and left sides of vehicle	°	 16'

Front axle camber

Number	Designation		Model 447 with engine 651, with code ZG2, model 447 with engine 654.9 with code ZG2, except code CA4	Model 447 with engine 274 except code CF8, model 447 with engine 651 except code CF8, ZG2, model 447 with engine 654.9 except code CA4, except code, CF8, ZG2 model 448 with engine 274 except code CA4
BE40.20-N-1002-13Y	Permissible difference in front axle camber between right and left side of vehicle	°	19'	19'

Front axle camber

Number	Designation		Model 447 with engine 274 with code CF8, model 447 with engine 651 with code CF8, except code ZG2, model 447 with engine 654.9 with code CF8, except code CA4, ZG2	Model 447 with engine 622, model 447 with engine 780.701
BE40.20-N-1002-13Y	Permissible difference in front axle camber between right and left side of vehicle	°	19'	19'

Front axle camber

Number	Designation		Model 447 with engine 780.702 except code CA4	Model 447 with engine 654.9 with code CA4, ZG2
BE40.20-N-1002-13Y	Permissible difference in front axle camber between right and left side of vehicle	°	19'	19'

Front axle camber

Number	Designation		Model 447 with engine 654.9 with code CA4, except code ZG2, model 448 with engine 274 with code CA4	Model 447 with engine 780.702 with code CA4
BE40.20-N-1002-13Y	Permissible difference in front axle camber between right and left side of vehicle	°	19'	19'

 With increased tire wear, the toe values on the front and rear axle as well as the camber values on the front axle have to be adjusted.
The following cases of increased tire wear can occur:

 Increased tire wear on outside shoulders of tires on front axle.

 Increased tire wear on inside shoulders of tires on front axle.

 Increased tire wear across entire tire tread on rear axle.

1	Adjust toe values on front axle in center tolerance range.

2.1	For increased tire wear on outside shoulders of tires on front axle. Adjust camber values on front axle in negative tolerance range and toe values on rear axle in center tolerance range.

2.2	For increased tire wear on inside shoulders of tires on front axle. Adjust camber values on front axle in positive tolerance range and toe values on rear axle in center tolerance range.

2.3	Increased tire wear across entire tire tread on rear axle. Adjust camber values on front axle in center tolerance range and toe values on rear axle in negative tolerance range.