VAG-COM gave a fault in engine
18010 - Power Supply Terminal 30: Voltage to Low
P1602 - 002 - Lower Limit Exceeded - Intermittent
My battery is new, This error started after I completely painted my car including inside of hood.
Engine works like cold and unstable, rpm in idle: 740 - 840 - 900
What can it be anyone has an idea or experience?
(2000 A3 1.8T AGU)