Digging up an old thread here, because my air pump may be on its way out (will have to check tonight). Car is a 91 300E.

QUESTION: Will the car pass emissions if the pump is removed? I'm due for my test this month and need to know. From what I understand, these pumps are not cheap.

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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