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Old 10-01-2016, 01:44 PM   #7 (permalink)
aerohead
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Quote:
Originally Posted by kach22i View Post
Mercedes Benz SLK Forum


I have no idea, looks like some afterthought to protect the paint job.
I don't know.But my guess is that there's an inherent defect in the car's original design,and the flap is a cheap,add-on palliative to make up for the deficiency.
The rear bumper fascia has a profile which might produce bi-stable flow and 'booming.' If so,the flap would trigger separation,not allowing for any reattachment in this region,'fixing' the acoustic and inclement weather 'spray' annoyance.
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