Q: Who do you contact at MB USA if trained MB technicians don't know how to fix it? on 2004 Mercedes-Benz C320

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This is the third time this has happened. Won't start when temperature is below about 40 to 45F. If above that starts and runs fine. MB technician tells me the mass air flow sensor thinks the real air temp is about 20F cooler than it really is and the engine computer changes the fuel mixture which then "floods" it with too much gas (as I understand what the tech told me). He has checked all the components and connections and sensors individually - everything checks "ok". In the past, replacing the main engine computer "fixed" the problem. It's back again for the third time in 4 years ... and the MB trained tech is stumped, as this failure is only a couple months after he just replaced the engine computer. Help!!!
(1) Answer
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go back to the shop or dealer and talk to the service manager if no results ask for a 800 number to talk to a service advisor
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