Battery OPTIMA or Varta

I put my optima in with no issues

I replaced mine also with the G14 and no problem at all, so it should work or your old battery broke becasuse of a defective module jorg

Here is a picture of the left battery that the factory put in my W12 when it was new. As you can see, it is labelled both 'Varta DE' and 'VW AG'.

I have mine VARTA battery since the car was made in 2006. Works like a charm. Great Batteries.

I just upgraded to a yellow top optima n I'm one cable short on finishing the big three.

The dealer sold me part # 000-915-105-DH for my swap yesterday. Sadly I didn't note the mfg and now that it's buttoned up we'll never know... FWIW - it looked almost identical to the Varta #1J0 915 105 AG that I pulled out.

Great battery! I'm really happy with mine.

Don't assume the Optima is in good condition either. I love them, I have one in each car, but both my brother and I have bought RED and YELLOW tops that were bad from the store.

Optimas are junk. They used to be good years ago but that time has passed.

Optima is the most overrated battery brand on the planet (I'm not saying the WORST, but they are way too well-known for being a slightly-below-average product). They used to suck when they were gel cell (gel cells all suck) and their more recent AGM (AGM itself is good) batteries aren't great. Made by Johnson Controls, a not-great company, in Mexico.