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how can I fix P0172 from Mercedes Benz c200 2003
Vehicle: Mercedes Benz C200 2003 1800cc

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P0172 Fuel trim too rich

When dealing with a rich fuel trim on a MBZ do a MAF cleaning the MAF are known to cause a fuel trim problem

 MAF sensor on a MBZ are known to cause a fuel trim problem , try a MAF cleaning

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