fuel pump code P2540
07-28-2015, 09:52 PM
#1
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09 C63 AMG
fuel pump code P2540
My question is should I flash my car back to stock b4 taking it to the dealer to have them change the pump out??? If not do you think they will flash my car back to stock???
08-29-2017, 12:33 AM
#2
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Wow, no replies on this for a month. Sorry to hear it. I'm fighting an issue with the same code. In my experience, the dealership may re-flash the car just to see if that fixes things. But they won't care if you're running a tune so don't bother re-flashing unless you are under the original factory warranty.
08-29-2017, 01:23 AM
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2012 P31 C63 Coupe Trackrat, 2019 GLE63S Coupe Beast
Wow, no replies on this for 2 years and a month. Sorry to hear it. I'm fighting an issue with the same code. In my experience, the dealership may re-flash the car just to see if that fixes things. But they won't care if you're running a tune so don't bother re-flashing unless you are under the original factory warranty.
