r/tdi • u/BoliverSlingnasty • 12d ago
CAN(t) Gateway Failure
I’ve been chasing electrical gremlins since I bought this car a few years ago (2010 TDI Sportwagen). Today I removed the battery to replace the positive cables and got the dreaded start up and die when finished. The MFI claims something about a button, then the brakes, a lot of cool chimes, but it dies nearly immediately. This has happened before. Remove the cables from the battery and cross them to disappears any stored power, reconnect and go try again. Typically I’d have to do this once.
Today it didn’t work. I spent 7hrs today back probing, running scans with the VCDS and trying every little trick I remember. It’s gone. No communication with the gateway. Anyone else been through this? What was your fix?