Return the MOST system back to normal. I am certain that it's the handles that's causing the issues.
Also make sure that the battery is correctly coded to the car.. providing that the battery is a genuine VAG one and intended for your car.
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Previously:
2010 Audi A8 4E Quattro Sport TDI Oyster Grey
Currently:
2015 Audi A8 4H Sport Executive Quattro in Monsoon Grey
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