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1991 500SEC sub 50K mi. 1987 560SEC Now 150K mi. 2018
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4,281 Posts
Hi 'boss,

That is the air intake for the air pump.

After you pop the air filter cover off, you'll find a little filter just inside.

Cheers, MBL
 

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12-Camel TT S600
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1,794 Posts
Discussion Starter #3
thanks for the answer MBL.. but what does this air pump do.. my car had this pipe removed from the ex-owner and i never paid much attention..
 

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1984 280SEL AMG
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701 Posts
What that does is take expanding gases ( gas soaked oil, yes the oil in your car does soak up gas that blows by your rings.. to much gas in your oil the less it lubes )in your engine and dumps it into the air intake. What it's sposed to do is make the car more ECO friendly. and a bit more efficeant ( so they say )
 
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