[MCube]

As i know. Adblue would never cause engine to stall or not to start. There maybe a faulty adblue emulator hidden somewhere that causes can signal error. Because it connects to can. Have a look at the area near diagnostic socket or passenger side. If owner says it was . Then it might be the cause. But when u have emulator adblue tank always shows half. Check if there is an emulator.

---

But first. Delete all errors and try to start engine without quick start. Then read errors again. It maybe not even can line. Maybe something wrong with the engine itself. Because if can line fails ecu would not respond at all.