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.)

If that's the case, mine would probably fail. I'm not in a hurry to replace it just yet; I'll monitor to see if it gets worse. When the time comes, it's good to know a reman is only $450.

By the way, what is parameter steering? The parts guy (and FastLane too) listed 2 racks, one for a car with parameter steering and one without.

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08 W251 R350
97 W210 E320
91 W124 300E
86 W126 560SEL
85 W126 380SE Silver
85 W126 380SE Cranberry
79 W123 250
78 W123 280E
75 W114 280