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2003 Mercedes-Benz S430 4MATIC Question: After replacing after market engine air filter cel for PO101 appear

 

Question

S.Lin, Waterford, CT, January 10, 2012, 15:50
 Enthusiast

Clean MAF sensor light still on, whill a aftermarket filter will throw the light?

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  • Answer #1

    jpincharge from JP Motors LLC, January 28, 2012, 07:04
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     Technician

    Something may have been disturber when replacing filter, try cleaning air mass meter contacts. was the previous filter a k&n, have seen the oil from those get on air mass and cause it to fail.

    JP

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