Here is an interesting quote from Porsche Boxster Story by Paul Frere ...
Quote:
The sensor is integrated in the air filter housing, downstream of the filter element in such a way that the film is protected from dirt. In 160,000 km (approx 100,000 miles) the film efficiency is reduced by only three per cent.
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Kent Christensen
Albuquerque
2001 Boxster
2007 GL320 CDI, 2010 CL550
2 BMW motorcycles
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