Ray, this valve has a bolt going into the engine plus the separate interior piece where the rubber vacuum hoses are attached, and on mine this interior is not tight but is loose, that is, it can be turned. Does ithis mean it needs to be replaced? Thanks.

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87 300e (white/black; amg body kit)
88 300ce (red/cream; amg body kit)
93 300ce cabrio (white/blue/blue top)
93 300ce cabrio (black/grey/black top)
98 ml 320 (totaled @ 137,000 miles)
99 clk320 (black/grey/black top)