cal3thousand

I had a similar problem after a long repair that exposed my car to an extended power battery disconnection. It only fixed itself after I jump started the car. Not sure what it was about the jumpstart that fixed everything, but the MMI, radio, back up camera were all out previously. All good now.

Nightlifephantom

Did this issue started happening before or after replacing the battery?

cal3thousand

It happened before replacing the battery. I was able to use this battery for a few months before eventually needing a new one. But the MMI started working again when I jumped the car right around the steep decline stage of the battery (last 3 day before death). It was working for a couple days and then the battery went kaput.

It could have been that the MMI kept off due to a struggling battery. I don't know. But I have since modified the car with VAG-COM to display battery stats in the MMI, so I'll be able to keep an eye out on that.

first.octopus

BTW, how do you modify MMI to display battery status?

will.m075

hey so last night it rained and today my passenger side was submerged in water but not my seats or doors but the carpet on the passenger side front n rear was swamped. could that be the cause , it sure feels like it now