Quote:
Originally Posted by david s poole
there are several doors in the airbox that were built with foam around them that over the years will fall apart and come through the vents.this is one of the sneaky ways that mercedes uses to keep us buying newer cars.
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Most flapper doors I've ever seen have this foam.
It prevents the doors from "slamming" shut & eliminates whistling noises from the blowermotor when they're closed.