Thank you so much for this video! I just fixed my 09 A5 3.2 based on your video. Saved me thousands. I did end up buying the voltage regulator directly from Audi. It was $256 but a local dealer had a parts special so I was able to get mine for $194. I also went in from the top of the engine compartment. I took apart the front end and put the car in "service position" and went in from there. Lots more parts to undo but it gave me more clearance to move around. I still had to go from under to disconnect the battery cable and the electronic connector attached to the alternator. Altogether, spent maybe $300 with the cost of parts and buying tools. Way better than the thousands I was sure to spend with Audi. Thanks Dave!!!
I have similar issue with a 2013 audi q7. Changed the regulator and bearing while I was at it. After all cables being reconnected, the car turned on, placed in gear and the car died. I connected my OBDeleven and battery reads 9.2 Volts. Used jumper cables to get the car started but the entire dashboard lit up like an x-mas tree. From TPMS being faulty to adaptive headlights not working. I have read if a new battery is replaced or alternator is replaced, the battery needs to be coded. Not sure of the if that is legit. Does the the battery need need to be coded? I am out of ideas where to keep looking. What do you suggest?
Nice work!! I got my 2010 also 3.2 4 months ago. Sitting at 170k kms. I’ve looking all your videos. I did driver’s side CV boot replacement so far. Did you change transmission fluid? I bought fluid, filter and gasket already but still having doubts about the filling plug. Anyway.(btw OEM Lifeguard 8 fluid) Any wheel bearing replaced? Diff and center Torsen fluid? I appreciate your work, clean and straightforward!
Nice! I am getting messages about a failed alternator and I’m also having a cylinder misfire. Could the bad alternator cause problems with a spark plug? Grounding issue? Thinking of starting with this process to replace the alternator’s voltage regulator.
@@daveraymond2265 agreed! my first set of misfires was spark plugs. a year later i had misfires again but it ended up being fuel injectors this time. went to audi dealership both times and spent THOUSANDS for both issues. I will not let them get me again with this alternator issue! lol determined to do it myself!
I have simillar problem but i have A3. Fault message is coming when i turn on some electrical things like heated rear window and after a while it dissapears to suddenly come on again when I turn something on. Do you think it will be the same issue as yours? Sorry for my english
Hey Walo, it sounds like you may have a weak battery and every time you turn on a high current draw items the battery voltage drops too low and maybe the car thinks it’s not being charged. First thing I would do is check the terminal voltage of the battery and it should read very close to 12.6 V When the car is off. When you start the car the voltage should jump up to 14V or so
@@daveraymond2265 Battery seems good. I have start/stop system which wouldn't be able to work when battery is weak. On A3 is hard to take alternator off and i wonder what causes this problem. I am driving this car daily with this issue and i doesn't see any other issues besides of fault on the dashboard. Some mechanics seen my car and they don't know what to do too. There is no fault codes when i plug computer to the car but gauge cluster randomly sees drops of voltage one guy said.
I read a number off of the regulator and Googled it, a picture of it came up and I started searching from there. Sorry I can't find where I bought it from.
