BMW 3: Increased fuel consumption and reduced performance due to MAF and EGR valve?

Hello everyone, I own a 2004 BMW 3 Series with a gasoline engine and 234,000 km on the odometer. I've noticed that my vehicle's fuel consumption has increased and the performance seems reduced. Could this be due to a fault in the mass air flow sensor (MAF) or the EGR valve? Has anyone had similar experiences or can give me tips on what the problem might be and how I can fix it? Thanks in advance!

(Translated from German)

1 comment(s)

Start by checking the air filter for dirt or clogs, as a dirty air filter can affect fuel consumption and performance. If the air filter is clean, then consider inspecting the mass air flow sensor (MAF) for dirt or damage. Let me know how it goes or if you have any further questions!

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