Replacing OEM battery S4 B8

[LmG7119]

That is a 90AH battery, so I would use the 95AH BEM code: 8K0915105E MLA 180319JWV0

Does it matter that it is made by Johnson Controls?

[S4'ed]

No

[LmG7119]

This is my current battery. allroad battery.jpg I think it is H8 AGM

That H8 AGM is actually 95AH https://www.pepboys.com/car-batterie...%202.0L%20DOHC
I could go to H9 agm which is 100AH.

[lenf]

I purchased my 2012 S4 in August 2011 new. The car is still on the OEM original battery 8.5 years old. I don't have warning lights on my dash regarding the battery life. I live in central NJ, where winter can be cold and sommer hot. I'll change the battery when car will indicates it(maybe soon).

This is from 2012 Audi A4-S4 owners manual:

"Battery voltage:
Applies to vehicles: with battery voltage warning. If battery power drops into the range where it can limit the ability of the engine to start, this the (•i symbol appears in the instrument
cluster display with the following driver message battery charge low: Indicates charging by being driven. While t his driver notification is displayed, you have to be prepared for limited starting capability.
Driver message appears and goes out again. If this driver message appears after the ignition is turned on or while driving and it goes out again after a while, the battery has been adequately recharged.
Driver message appears and does not go out again. If this driver notification appears after the ignition is turned on or while driving and does not go out again, the battery's state of chargeis not in the optimal range. Starting capability is restricted. Have the battery checked at an authorized Audi dealer or other qualified workshop as soon as possible."

Also from owners manual after replacing battery:

"Your authorized Audi dealer must code the battery in the energy management system to enable you to use the energy management functions correctly after replacing the battery ."

[Dr GP]

I purchased my 2012 S4 in August 2011 new. The car is still on the OEM original battery 8.5 years old. I don't have warning lights on my dash regarding the battery life. I leave in central NJ, where winter can be cold and sommer hot. I'll change the battery when car will indicates it(maybe soon).

This is from 2012 Audi A4-S4 owners manual:

"Battery voltage:
Applies to vehicles: with battery voltage warning. If battery power drops into the range where it can limit the ability of the engine to start, this the (•i symbol appears in the instrument
cluster display with the following driver message battery charge low: Indicates charging by being driven. While t his driver notification is displayed, you have to be prepared for limited starting capability.
Driver message appears and goes out again. If this driver message appears after the ignition is turned on or while driving and it goes out again after a while, the battery has been adequately recharged.
Driver message appears and does not go out again. If this driver notification appears after the ignition is turned on or while driving and does not go out again, the battery's state of chargeis not in the optimal range. Starting capability is restricted. Have the battery checked at an authorized Audi dealer or other qualified workshop as soon as possible."

Also from owners manual after replacing battery:

"Your authorized Audi dealer must code the battery in the energy management system to enable you to use the energy management functions correctly after replacing the battery ."

You will need a new battery soon. No need to re- code if you replace it with an H8 battery. Electrical system will self adapt. H7 (not recommended) or H9 should re code

[lenf]

So, I decide to replace battery on my 2012 S4 which is almost 9 years running on OEM original battery.
I have no issue with original OEM battery, but don't want run into any.
So, I decide to purchase either:
1. AutoCraft Platinum AGM Battery, Group Size H8, 900 CCA
or
2. AutoCraft Platinum AGM Battery, Group Size H9, 950 CCA

Can any of you guys comment which one should be better to replace with?
P.S. My mechanic will re-code the battery for me for free, so I'll do re-coding regardless of the battery.
Thanks in advance.

[jsh139]

I don't have any experience with AGM batteries, but I used a lead acid Autocraft Gold H9 950 CCA and it worked great.

https://shop.advanceautoparts.com/p/...Autocraft+Gold

[rnkjr]

So, I decide to replace battery on my 2012 S4 which is almost 9 years running on OEM original battery.
I have no issue with original OEM battery, but don't want run into any.
So, I decide to purchase either:
1. AutoCraft Platinum AGM Battery, Group Size H8, 900 CCA
or
2. AutoCraft Platinum AGM Battery, Group Size H9, 950 CCA

Can any of you guys comment which one should be better to replace with?
P.S. My mechanic will re-code the battery for me for free, so I'll do re-coding regardless of the battery.
Thanks in advance.

My 2013 take an H9. It is 15 1/2 inches long. The H8 is a couple inches shorter. I am not sure all take the same size.

[Pawan2013]

any a4/s4/a5/s5 can take a h8 or h9. some came with h8's and some with h9's from factory depending on region and year. my s4 came with an h9 and i replaced it with an h8 agm, because they didn't have any h9 agm's at the time.

[Midnight_Rider]

Autocraft gold going strong for a year now. I didn't have to recode. The car's MMI didn't turn on first, but had to start and stop few times, and did a hard reset (3 button).

If I have to do it again, I'd go with AGM platinum. they're $150 with the 45% discount code now.

[Slick_B8]

Autocraft gold going strong for a year now. I didn't have to recode. The car's MMI didn't turn on first, but had to start and stop few times, and did a hard reset (3 button).

If I have to do it again, I'd go with AGM platinum. they're $150 with the 45% discount code now.

What’s the 45% discount code? I’ve only seen the trt30 code lol

[Midnight_Rider]

c23 is 20% off - advance auto (3/5/2020)

RAKUTEN25 is 25% off - advance auto (3/5/2020)

And if you wait a while with your item in the basket with the tab open, the 45% coupon pops up. I think maybe it was Wednesday deal, since I can't see it now. Now I think of it, I should have written it down...

[lenf]

I replaced battery in my 2012 S4 B8 (was original flooded battery H8, 850CCA for 8.5 years since new. I haven't issue with this battery, replaced it just to be on the safe side) with AutoCraft Platinum AGM Battery, H8, 900 CCA from AAP with 25% off and $22 refund for the old battery, total $161 with tax. Start the engine normally like its nothing changed. No lights or warnings came out. I used battery tender to save all settings, so nothing's lost. Still I'm going to re-code the battery tomorrow.
AutoCraft H9 battery is 8 pounds heavier and larger than H8 battery. IMO, H8 is better for S4 B8.

[audistealth]

I replaced battery in my 2012 S4 B8 (was original flooded battery H8, 850CCA for 8.5 years since new. I haven't issue with this battery, replaced it just to be on the safe side) with AutoCraft Platinum AGM Battery, H8, 900 CCA from AAP with 25% off and $22 refund for the old battery, total $161 with tax. Start the engine normally like its nothing changed. No lights or warnings came out. I used battery tender to save all settings, so nothing's lost. Still I'm going to re-code the battery tomorrow.
AutoCraft H9 battery is 8 pounds heavier and larger than H8 battery. IMO, H8 is better for S4 B8.

Do you have B&O sound? Mobile doesn't show signatures.

[Bshiau]

I just replaced my original battery (10 yrs old and still working), but like another member said, it was like living on borrowed time. I have B&O. Not sure if that makes a difference. But I got the AutoCraft Platinum AGM H9, 950 CCA. My core charge was only $5, so I’m going to keep it. I also have a VCDS cable so I did the coding.

[serafik]

Will an H7 850 battery from costco work for a b8.5 s4?

[lenf]

Do you have B&O sound? Mobile doesn't show signatures.

Yes I have B&O in my car. FYI B&O included with Prestige package by default.

[lenf]

Will an H7 850 battery from costco work for a b8.5 s4?

It probably will. But I'm not suggest you to replace with H7. Replace with H8 this way you may not need to re-code you battery. In any case, check your current battery and replace with whatever it may be(H7, H8 or H9). In my case the old battery was H8, 850 and I replaced it with H8; 900.

[Strong Man]

Did someone connect external 12v charger during the replacement process ?! so the car won't lose 12 volts and don't go to the full system reset.

[Bshiau]

Did someone connect external 12v charger during the replacement process ?! so the car won't lose 12 volts and don't go to the full system reset.

I hooked up a battery tender to the positive and negative posts under the hood. Not sure if I really needed to, but others have suggested it, and I already have one for my bike.

[rsfpc05]

Do you have B&O sound? Mobile doesn't show signatures.

Why does B&O matter? I have it and just replaced my battery without recoding

[Midnight_Rider]

Me too. No recode for autocraft gold. I have B&O - no issues on B8.5.

definitely do a hard reset on mmi. The VAGCOM mods remained intact - play vid, secret menu, etc.

[SSMOKE-U]

The battery has been acting up lately (advanced key working intermittently, hesitated starting and the length of time the radio was on while car was off had decreased dramatically) and the batteries' life had declined appreciably this week so much so, it wouldn't start when I went to wash it. I had to decide on a battery and find one to install.
As you know your choices vary a lot for this battery size (95R/ H9 in my case) between several brands and also between wet and AGM. Because they all weighed about the same- this was not a deciding factor. My choices on a Sunday were quite limited, so I couldn't really get a few exact prices, but made the assumption based on some web searches that AGM would be another $60-$100. I called the dealer the day before- they wanted close to $250 for the battery (list) and another $150 to install it. OUCH. I know the days of a "free battery install" in a car like this are over, but really?
I called a few mechanic buddies for their opinions: They agreed AGM was not worth is since this is not a hi vibration application and a wet battery would be perfect. Pep Boys had a Bosch for about $160 (after coupon), but one mech. friend said he has seen a lot of newer Bosch battery failures lately and suggested against it. I have had bad experiences lately with Interstate in other cars, so that was out. I like Deka batteries a lot, but I would have to wait until Monday to find one, plus if I ever needed service on it- they are 25 miles away from me.
I decided AGM, Bosch and OE were not worth the extra cost and I settled on buying one from Advance Auto. I am extremely glad I did too! I used a 30% off coupon and received another $20 reward perk back dropping the final cost to about $125. The best news is that the battery is made in Germany by Varta and came with the proper BEM code on the new battery. So you can disregard the info above on "tricking" your car to accept any BEM code you conjure up.....the Advance Auto is ready to go complete with a proper code! I drove to my local A/A to pick up my order...unfortunately the battery on their shelf was OVER 2 years old already. Buying a battery is like buying groceries- read your date codes!. I called around and found another store that had one in stock a little over a month old. Perfect!!
I got the battery installed and car coded with the proper BEM and now I am ready to enjoy the car again....and head to the car wash

Advance Autocraft batteries aren't made by Varta, even the ones "Made in Germany". They are made by Clarios, formerly Johnson Controls. Not that it makes a big difference, but I didn't want there to be false info out there regarding manufacturer.

[jsh139]

Did someone connect external 12v charger during the replacement process ?! so the car won't lose 12 volts and don't go to the full system reset.

The car won't go into a full reset if it loses power. The only thing you'll lose is the clock and the Trip Computer 2 values.

[HobbesA5]

Just bumping this helpful thread to add a data point.

I just replaced the battery in my 2009 A5 after getting 11 years from the original battery. I went with the linked battery in this thread from Advance Auto. However, the batteries there are now labeled as DieHard instead of AutoCraft, so I assume they bought the brand name from Sears.

I got the DieHard Gold H9 (non-AGM) and it was a perfect match for my original battery. It had the same AH rating and was even manufactured by the same OEM in Germany (Varta). It also had a BEM code sticker on it so that I could properly code it with my VAG-COM.

I keep my cars a long time, but after getting 11 years from the original battery, I assume this one will last until I replace the car.

[killer_s4]

Funny enough I just replaced mine today with a diehard platinum agm h9 950CCA. Car starts way quicker than before.

[HobbesA5]

Car starts way quicker than before.

Same here.

[sacandagaD]

If you can find the Battery at Advance Auto, you'll usually get a coupon code for 15-20% when you shop online.

[beckmaster]

I hate it that I am asking here and can't figure this out on my own with searching. And, I have been searching for over 2 hours now.

I am in a 2013 B8.5.
My battery is the H9 size 850cc but it is 110Ah. I can not find a replacement battery with the same Ah outside of the $250 one from Audi. Am I just a dumbass who can't figure out how to do a decent search?

Advance Auto Parts has the H9 950cc that many here say is great but it is rated at 105Ah for the platinum and 100Ah for the gold. Does anyone have advice for me?

[HobbesA5]

I hate it that I am asking here and can't figure this out on my own with searching. And, I have been searching for over 2 hours now.

I am in a 2013 B8.5.
My battery is the H9 size 850cc but it is 110Ah. I can not find a replacement battery with the same Ah outside of the $250 one from Audi. Am I just a dumbass who can't figure out how to do a decent search?

Advance Auto Parts has the H9 950cc that many here say is great but it is rated at 105Ah for the platinum and 100Ah for the gold. Does anyone have advice for me?

I bought that exact battery a couple of months ago (see my earlier post). The DieHard Gold from Advance is 110 Ah. Cost with the frequently available coupon was $128.

20200805_193135361_iOS.jpg

[beckmaster]

I bought that exact battery a couple of months ago (see my earlier post). The DieHard Gold from Advance is 110 Ah. Cost with the frequently available coupon was $128.

20200805_193135361_iOS.jpg

That’s strange. When I look online it is 100Ah for the gold and 105 for the platinum

[Whitee]

I see a 10% off code, anyone know if there is still a 30% off anywhere?


Sent from my iPhone using Tapatalk

[beckmaster]

After doing the battery replacement and coding in the new battery, I think the coding thing is garbage. My car was built in 2012 and the battery is brand new. There is no way a 2012 car will have any clue what I'm putting by the BEM code. I think it is just another scam to get you to use the dealer for something anyone can do themselves.

My original battery went pretty low and I had a few fault codes I had to erase. Everything works just fine.

[mavinwow]

I see a 10% off code, anyone know if there is still a 30% off anywhere?


Sent from my iPhone using Tapatalk

Of course when I need a battery, it seems like Advanced now caps the discount on batteries at 10%....

Seems like Costco now carries Interstate AGM H8 and H9 batteries as well which is relatively new.

[hardfive]

Of course when I need a battery, it seems like Advanced now caps the discount on batteries at 10%....

Seems like Costco now carries Interstate AGM H8 and H9 batteries as well which is relatively new.

I neeed to get a battery. You pull the trigger on anything or find any good deals? Im seeing the 10% cap on Advanced Auto's webpage as well.

[mavinwow]

I neeed to get a battery. You pull the trigger on anything or find any good deals? Im seeing the 10% cap on Advanced Auto's webpage as well.

Tis the season for coupons so will see, have not bought one yet. Will get an H8/H9 AGM from whoever has the best price between AutoZone, Advanced, O'reillys, Costco. Seems to be a lot of coupon restrictions all of a sudden. PepBoys probably has the best deal right now but I dont have one super close.

[hardfive]

Tis the season for coupons so will see, have not bought one yet. Will get an H8/H9 AGM from whoever has the best price between AutoZone, Advanced, O'reillys, Costco. Seems to be a lot of coupon restrictions all of a sudden. PepBoys probably has the best deal right now but I dont have one super close.

Costco said there is a shortage. Mine sold out and doesent expect to get more until February. probably why coupons dried up.

Sent from my SM-G973U1 using Audizine Forum mobile app

[Boostrules]

So it looks like after 9 plus years I have to replace my original battery. I like the Diehard gold 95R/H9 and if I use a battery tender to supply power thru the engine compartment while swapping batteries do I really need to "code" the battery? Have seen both opinions of do and don't but would like to ask of someone who didn't code, did they experience any issues after an extended period of time driving the car like that. Thanks in advance for any answers because I don't have vagcom and don't want to pay the stealership $150 to code if not necessary.

[stoked_S4]

Saw low battery icon on dash chime for the first time. Here is the read out from VAG taken 24 hrs after car was parked. Is my battery 78% aged or 78% life remaining?

IMG_3308.jpg

[alarum_78]

Just thought I would add I am on my OEM battery 2010 S4.. CRAZY!