I've read in WIS concerning testing the W210 rack that if the wheel is turned more than 1 degree and the tires havnt yet moved that the rack is bad. Cant find that doc right now but fairly certain I'm remembering correctly.

One degree is a very tiny amount of movement and subjective. I dont think mine passed that test.

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)