3 Nov 8, 2016. #15. Retroman said: The “official Audi” manual suggests a course of action which would result in you having to go to an Audi dealer to buy a “special” Audi battery with a VAG part number which would then be “notified” to the ECU with “special” VAG software so that everything would run perfectly again. A4Avant B9 (2016) battery died. Any idea how I open the tailgate to replace the battery. Car has no power. i just had this same issue in my sedan. Frustrating that there is no key hole for situations like this, as there was on earlier models. since you have an avant, your rear seat bottom should fold up and reveal a cable. Its tightly strapped in beside the spare tire under the trunk floor. I suspect this is not one you'll be able to find at your local parts store and will have to get from the dealer. On the plus side, the very similar one in the trunk of my A3 3.2 is still going strong after ten years in Minnesota. - Chuck. Reply Like. 07-11-2016, 08:17 AM. # 4. My2016 Allroad has a factory battery with part# 3D0915105H. It is an AGM battery. 2019 Audi A4 Quattro Premium Plus | Manhattan Gray | Burger Motorsports JB4 Aug 30 2016 AZ Member # 379715 Location Althoughsome batteries last much longer, most batteries begin breaking down chemically after four years, so you could experience dimmer headlights and other negative effects before you have a dead battery in your A4 that you need to replace. The battery location in a Audi A4 can typically be found in the engine bay, but may be in the trunk 2016Audi A4 Quattro. 2016 Audi A5 Quattro. 2016 Audi A6. 2016 Audi A6 Quattro. 2016 Audi A7 Quattro. 2016 Audi allroad. 2016 Audi Q5. 2016 Audi RS7. 2016 Audi S5. Find a Battery; Find a Location; All Battery Center; Dealers; Distributors; How-To's; About Us About; Careers; Culture; History; Recycling; Sponsorships; Connect YouTube; TT(Mk3) Discussion Discussion forum for the Mk3 Audi TT, TT-S and TT-RS Coupe & Roadster produced from 2014- present Checkif this fits your 2015 Audi A4. Select store. for pickup availability. Home delivery unavailable. Add TO CART. Notes: OEM exact fit, *** 680 cold cranking amps (850 cranking amps)***. 115 reserve minutes. Battery is vented to outside of vehicle. OEM manufacturer used various size batteries in production. qXK98jG.