Hi everyone, I’m new on here and new to Audi. I’ve recently bought a 2016 2.0 TDI A5 and everything is really good apart from getting a white A with a slash regarding the stop/start (and also because its the coupe the water drip when I open the window with the smallest bit of dew on the roof ha) . I’m assuming this is a battery issue. If I replaced with a AGM or EFB would this get rid of the warning message or would it also need a a reset of the computer system or similar? Any advice would be greatly appreciated Cheers