Runs for a few seconds then dies, electrical problem......




plus coding labor costs.
Edit: I updated the link for the 2010 E550.. $2000+
Personally, until the source of the short is not understood, I would not install a brand-new unit on that vehicle at that price. I rather damage the old ECU one more time before committing a new unit, i.e. use the old ECU as an expensive fuse.









These cars once out of warranty and accumulated codes to be fixed are dealer's dream everyday


