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Hello, I made a post about a month ago and people have mentioned replacing the battery on a 2009 Audi S5. I would like to replace the battery myself as I have on all my other vehicle. I was wondering what I would have to do for this. I am sure it is not as simple as just swapping them out because of all the different module, so just want to see if its something I can handle doing or if I should take it to a shop.
Hello, I made a post about a month ago and people have mentioned replacing the battery on a 2009 Audi S5. I would like to replace the battery myself as I have on all my other vehicle. I was wondering what I would have to do for this. I am sure it is not as simple as just swapping them out because of all the different module, so just want to see if its something I can handle doing or if I should take it to a shop.
I'm no car expert/mechanic or anything close to one but I swapped out the battery myself (2010 Audi S5). Just unbolt the hold-down bracket and the terminals and swap it out.
The battery I have now has not gone completely dead yet, thankfully. I was looking on line to see if I could find one around and I have found that there is a few to choose from. Some with 850 Cold cranking amps, 900 Cold cranking amps, and a few others. I was looking on my battery to see if it told me what it was but could not tell right away. The battery does have a few numbers on it 12v 110Ah 520A DIN 850A EN/SAE. Not sure if that means it has 850 Cold cranking amps. Any help would be greatly appreciated.
I recently replaced the OEM battery in my '15 S5. Same part # as yours -8K0915105F - although mine was made in Germany by Moll. Same specs, too - 110 Ah & 850 A. It was a flooded-acid type battery with a group size of H9/95R (15½" x 6 7/8" x 7½", 65 lb).
I replaced it with an H9 AGM battery from Advance Auto Parts rated at 105 Ah and 950 A (Part No. H9-AGM). Installation was fairly easy and straightforward for a trunk-mounted battery. I had to use my VCDS to recode after installation.
Awesome, really glad to hear. When replacing the battery I just have to make sure the car has a constance power supply while replacing it, and doing so I shouldn't have to reprogram it. If I am wrong just let me know but thats what I have read. I am glad I could find a battery and avoid taking it to the dealership and having them charge me $500+ just to change a battery...
I used my VCDS to recode the Battery Control Module so it would know that a new battery had been installed. That's different from losing programmed settings when you disconnect the battery without a 12 volt source connected to the car.
I used my VCDS to recode the Battery Control Module so it would know that a new battery had been installed. That's different from losing programmed settings when you disconnect the battery without a 12 volt source connected to the car.
This is correct. Resetting the battery management by entering the new battery serial # informs the charging system that a new battery is present and adjusts the charging rate accordingly. Some have reported that new batteries installed without doing so have failed prematurely due to overcharging.
I purchased a battery for a Q7 and an A6 from my Audi Dealer for this reason and installed myself. Registering the new # was not difficult with VCDS.
Surprisingly the Audi OEM batteries were very competitively priced.
09-01-2018, 12:18 PM
Replacing a Battery on a S5
