Antifreeze Pentosin or Prestone

I personally just use pentosin. They're only about $13 for 1.5 liters ( here ) and makes 3 liters. I keep a few bottles and some distilled water in my garage just in case.

Gear Hell no! Don't use that generic auto parts store crap. Pentosin, VW/AUDI only. Unless you don't like your car!

You will probably be fine running the Peak stuff if you have to, but I seem to recall a few years ago I was able to purchase Pentosin/Pentofrost from Advance Auto Parts. That was a brand that I saw often on VW parts sites and it meets the standards for using it in the MKIV VW cooling systems, so I went with that.

Yes most certainly I always use Pentofrost/Pentosin VW-Specific Concentrated Coolants. Always have for every VW I have ever owned.

Yes, that will work. I did Pentofrost G13 equivalent for my top-up coolant.

It is best to use the genuine BMW coolant, but in an emergency Pentosin NF antifreeze is apparently compatible with the OE coolant in your BMW.

Ditto. I only use G11, made by Pentosin.

I believe Pentosin Pentofrost A3 is equivalent and it's also $19 from Advance Auto. I have both at home because the Pentosin is equivalent to Subaru coolant as well.

I'm almost positive that VW uses Pentosin at the factory- I think the G12/G13 is the same stuff as the Pentofrost SF/Pentofrost E.

When I bought my Jetta it was filled with Prestone. One time the fan switch crapped out on me so while replacing it I did a coolant flush and decided to use G12. About 2 weeks later the car started overheating like mad.