Mercedes Repair Questions? Ask a Mechanic for Answers ASAP
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A p0410 fault code is a fault in the secondary air injection system. the system will need to be diagnosed to determine the problem. It could have a faulty air pump or one of the valves in the system could be faulty or it could be as simple as a broken vacuum line.
you'll need to diagnose it first to see it's the air pump, a vacuum line or a valve.
this a complex system and a scanner will need to be used to check the function of the valve and the pump. in some cases it could be a wiring problem to the pump.
I would suggest getting it diagnosed then you can replace the faulty part yourself to save some money.