2003 Mercedes-Benz S430 4MATIC Q&A

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

Clean MAF sensor light still on, whill a aftermarket filter will throw the light? -
Answer 1
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 -