Battery died in my wifes '12 yesterday. Still powered stuff, but wouldn't turn over. Replaced it with a Diehard Gold AGM. We now have a CEL and flashing glow plug light accompanied with ZERO boost. Nice.
I have a VagCom Hex+Can, but lent it out so used a Bluetooth solution to see a low voltage and overboost "historical" codes. Cleared them, disconnected the battery and hit the + to ground to drain any caps in the circuitry... no dice.
Let it sit overnight: Same crap. I have zero problem troubleshooting any mechanical or electrical fault, but this is automotive insanity.
Beyond that, it's my wife's car...
I have a VagCom Hex+Can, but lent it out so used a Bluetooth solution to see a low voltage and overboost "historical" codes. Cleared them, disconnected the battery and hit the + to ground to drain any caps in the circuitry... no dice.
Let it sit overnight: Same crap. I have zero problem troubleshooting any mechanical or electrical fault, but this is automotive insanity.
Beyond that, it's my wife's car...