2016 Q5 3.0L Battery Replacement
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2016 Q5 3.0L Battery Replacement
Hello All,
I need to replace my 8 year old OEM Audi battery - (hard to believe it's still functioning). I found an equivalent Interstate AGM at Costco for $100 less than other car shops would charge. My question is whether I should use a memory saver to keep the on-board computer running during the replacement process. Also would a 9V memory saver work. - Thanks.
I need to replace my 8 year old OEM Audi battery - (hard to believe it's still functioning). I found an equivalent Interstate AGM at Costco for $100 less than other car shops would charge. My question is whether I should use a memory saver to keep the on-board computer running during the replacement process. Also would a 9V memory saver work. - Thanks.
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Some say yes you need a memory saver, others say no.
Do you know that you need to code the new battery to the the Q5 battery power management system using VCDS, OBEleven, etc?
All you need to do is change the current battery serial number up/down one digit.
You should read this long post...........
https://www.audiworld.com/forums/q5-...stion-2954860/
Do you know that you need to code the new battery to the the Q5 battery power management system using VCDS, OBEleven, etc?
All you need to do is change the current battery serial number up/down one digit.
You should read this long post...........
https://www.audiworld.com/forums/q5-...stion-2954860/
Last edited by Bob Petruska; Mar 19, 2024 at 12:41 PM.
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I changed out my battery last year. I had the Q5 hooked up to a Noco Genius at the time and did not lose any memory functions. The Noco was just a trickle charger and their least expensive version, so not certain it made a difference.
Last edited by stash64; Mar 19, 2024 at 01:29 PM.
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No need for use of a "memory retainer" when replacing the battery. You will only lose the one-touch down window feature, and the trip odometer. The window one-touch is easily reset: Lower the window by holding the switch till the window is fully open. Raise the window by holding the switch till it is fully up, then release the switch. Pull up on the switch again, holding it up for about 5 seconds, then release. The one-touch up and down feature should now be re-activated.
I recently installed the $179 Walmart Everstart Platinum H7 AGM into my 2017 SQ5. I then changed the sn by one digit to reset the BMS (Battery Managment System).
I believe that resetting the BMS is only so that the BMS can give a more accurate warning (and shut-down non-critical systems) when it thinks the battery is near the end of its life. I don't think the BMS changes the charging profiles based on its internal calculated battery state-of-charge or aging / SOH / estimated remaining capacity / internal resistance.
If you don't reset the BMS, I don't think it will harm anything, or impact the life of the new battery, except you might get a premature battery end-of-life warning.
All this is just my opinion, unless the coder at Audi tells us what the BMS is really doing.
I recently installed the $179 Walmart Everstart Platinum H7 AGM into my 2017 SQ5. I then changed the sn by one digit to reset the BMS (Battery Managment System).
I believe that resetting the BMS is only so that the BMS can give a more accurate warning (and shut-down non-critical systems) when it thinks the battery is near the end of its life. I don't think the BMS changes the charging profiles based on its internal calculated battery state-of-charge or aging / SOH / estimated remaining capacity / internal resistance.
If you don't reset the BMS, I don't think it will harm anything, or impact the life of the new battery, except you might get a premature battery end-of-life warning.
All this is just my opinion, unless the coder at Audi tells us what the BMS is really doing.
Last edited by S4'ed; Mar 20, 2024 at 01:24 PM.
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I just swapped mine out for an H9-AGM Die Hard Platinum (950 CCA) for $271 total. I peeled the decal back and found my BEM number and changed the last digit. I did use a Ctek battery manager at the pos and Meg terminals under the hood while swapping out batteries. Fit was perfect!
Last edited by Schism75; Mar 24, 2024 at 01:54 AM. Reason: Forgot to add some info
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No need for use of a "memory retainer" when replacing the battery. You will only lose the one-touch down window feature, and the trip odometer. The window one-touch is easily reset: Lower the window by holding the switch till the window is fully open. Raise the window by holding the switch till it is fully up, then release the switch. Pull up on the switch again, holding it up for about 5 seconds, then release. The one-touch up and down feature should now be re-activated.
I recently installed the $179 Walmart Everstart Platinum H7 AGM into my 2017 SQ5. I then changed the sn by one digit to reset the BMS (Battery Managment System).
I believe that resetting the BMS is only so that the BMS can give a more accurate warning (and shut-down non-critical systems) when it thinks the battery is near the end of its life. I don't think the BMS changes the charging profiles based on its internal calculated battery state-of-charge or aging / SOH / estimated remaining capacity / internal resistance.
If you don't reset the BMS, I don't think it will harm anything, or impact the life of the new battery, except you might get a premature battery end-of-life warning.
All this is just my opinion, unless the coder at Audi tells us what the BMS is really doing.
I recently installed the $179 Walmart Everstart Platinum H7 AGM into my 2017 SQ5. I then changed the sn by one digit to reset the BMS (Battery Managment System).
I believe that resetting the BMS is only so that the BMS can give a more accurate warning (and shut-down non-critical systems) when it thinks the battery is near the end of its life. I don't think the BMS changes the charging profiles based on its internal calculated battery state-of-charge or aging / SOH / estimated remaining capacity / internal resistance.
If you don't reset the BMS, I don't think it will harm anything, or impact the life of the new battery, except you might get a premature battery end-of-life warning.
All this is just my opinion, unless the coder at Audi tells us what the BMS is really doing.
Thread Starter
AudiWorld Junior Member
Joined: Sep 2019
Posts: 7
Likes: 1
I just swapped mine out for an H9-AGM Die Hard Platinum (950 CCA) for $271 total. I peeled the decal back and found my BEM number and changed the last digit. I did use a Ctek battery manager at the pos and Meg terminals under the hood while swapping out batteries. Fit was perfect!
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