Alternator OEM Audi or AC DELCO

Only brand here I am confident with is ACDELCO, Wai I’ve installed due to customer already having the part but I cannot swear to its reliability.

I had my alternator go out on me at 165,000 KM on my audi S3 2015, got a rebuild for half the price of a brand new one and since it's a rebuild the warranty on it is for 2 years. Paid roughly 500 bucks and 100 for labor.

AC Delco makes a good product. Alternator technology is really old, so it's not difficult to do right.

I have the acdelco in my old Comanche and it works great.

Personally the AcDelco would be my top choice here with these options going new and not a reman.

It went out at 40,000 miles and was replaced without issue by the dealer which provided an A6 as a loaner for the week it took to replace the alternator. I still love the car and would not move to Mercedes

On rock auto I see new alternators from ac delco. Not sure about any of those brands.

yap mine was gone in less than 30K KM but audi japan replaced it for free.... it sucks... car just died

I got an ACDelco reman alternator from RockAuto, but it has a grinding feeling and bearing noise when I spin the shaft by hand. I'm not putting that "reman" alternator in the car only to have it fail a few weeks from now.

My Q8 alternator died today. 3 year old car 36k miles on the clock. Luckily I was right next an Audi dealership with a garage when the display panel told me to stop driving and pull over safely. When the mechanics got to the car they couldn\u2019t even start it.