should this be covered in my mercedes workshop CD manual? ive been trying to find it in there and cant....the one i have is from MBUSA, and ive looked under suspension, steering, and front axle...can anyone tell me what this procedure might be called by MB in the manual?

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1985 300SD 192,000miles...Astral silver/ Grey MbTex

1983 300D 194,000miles...White/Tan MbTex...my newest addiction