JimF, do I read correctly that your MAF issue wasn't triggering a CEL? I ask because my CEL is not illuminated either, yet it would appear the MAF is faulty. I guess I'm just surprised the MAF can be bad with no CEL illuminated.

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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