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Old 07-24-2003, 10:00 AM
jcyuhn jcyuhn is offline
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Join Date: Jun 2000
Location: Plano, TX
Posts: 2,513
Larry -

On a 123 the thermister which measures air temperature is located at the base of the through-the-dash plastic fitting. It's about 1/2 inch below the air intake grille. By the time the air transits the foam/pvc/garden hose tube, it has already been measured. So I don't think the actual material matters very much.

Why did MB choose open cell foam? Probably because it's lightweight, cheap, and easy to install.

- JimY
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