Haha, sounds good, Jim. I appreciate the offer - I may PM you at some point in December if this continues to bug me. Meanwhile, I'll continue to drive and monitor it. I'm getting ready to paint my Miata this weekend, if my HVLP gun arrives in time. With the Miata down for a week or two, I'll be driving the W210 to work each day. That should give me plenty of opportunity to examine the issue further.

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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