I am looking for mercedes special tool 126 589 03 21 00. I searched on this sites special tools section didnt find it any where. also it appears that no one on this forum has one. Where would I get one?

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