to properly align a mercedes you need a special tool called a seperator bar to push wheels out to toe out because of the elasticty of parts in front steerin parts. if the tool isnt used you will have tire wear problems

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1986 300SDL, 211K,Dealership serviced its whole life
1991 190E 2.6(120k)
1983 300D(300k)
1977 300D(211k)