My 2015 GL350 AdBlue module under the spare tire has water intrusion and 2 of the pins have broken off. Am I able to install a used module (and harness) and code it with my Autel Maxisys? Or do I Have to go through the dealer? Or did I post this in the wrong place.....

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Chris Muc

'08 R320CDI 265,000km
'15 GL350 206,000km

"You can fight without ever winning
But never ever win without a fight"

Neil Peart