2016 c450 amg rough idle loss of power NEED HELP - Mercedes-Benz Forum
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2016 c450 amg rough idle loss of power NEED HELP

2016 c450 amg 4matic 52,000 miles.
Getting codes P0171 & P017 and misfires in 4,5,6 and multiple misfires... car seems like it’s not getting any gas...
Bought the car and drove it back..at about 800 miles in I decided to throw in a bottle of gumout complete fuel system cleaner. then I would say about 3-400 miles after that the car lost power on the freeway and barely had enough to get if off the next exit.
The more gas you give it the more it wants to die.
Not sure if it’s a fuel filter or injectors or what... brought it to a shop call All Imports in Eagan, Minnesota to run diagnostics...they are closed on the weekend so I’m still waiting to hear back.
Any help or information will be appreciated greatly. This is my first financed car purchase and first Mercedes-benz.
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