Hello all, new member but have owned a 2016 A3 Etron since 2017 - I believe I bought a car from an employee owned program , it had 5k miles, so I am pretty close to origjnal owner( now at 78K miles) Overall great car, I had the battery pack replaced (was under recall) but aside from the tires, all original parts; including brake pads and 12v battery. Which brings me to this forum. The 12v battery is on its last legs and it pains me to think I have to pay Audi to program the car to accept the new battery. If I add the cost of what Audi charges for the battery, it'll cost over $400 to change a battery? That sounds absurd to me. Does anyone know what happens if you buy a compatible battery from a big box store and NOT re-program the car?
12v battery replacement
- Thread starter 2016liny
- Start date
Help Support Audi A3 E-tron Forum:
I think you can do this yourself. There is a video on YouTube showing the removal and install of the 12 volt battery. It is a Sealed AGM? Standard battery. Hardest part is the 12 fasteners to get at the Battery!
Look here --- Audi A3 Etron Battery DIY YouTube Bryan A Aug 19, 2020
The trick is getting a tool - like the OBD ELEVEN dongal with the software to Tell the Car what battery type you have installed. The Software to reset the Battery - Coding it to the car system is required for the auto Start / Stop system. It also resets the Date of the install because apparently the car monitors Battery age and adjust for degradation. In the video he uses a VCDS program with a Laptop.
The OBD ELEVEN is a less expensive option & works with a tablet or Smartphone. I have used it to replace the battery in my 2017 Golf Alltrack. This device will identify Fault Codes in the A3 E-tron -and you can modify some features in the E-tron for little cost.
Same procedure using "Adaptation". Sold direct from obdeleven.com or Amazon. As I understand ir... The VCDS has greater capabilities if you plan to make mods to the car or need more complex problem evaluations.
Hope this helps.
Look here --- Audi A3 Etron Battery DIY YouTube Bryan A Aug 19, 2020
The trick is getting a tool - like the OBD ELEVEN dongal with the software to Tell the Car what battery type you have installed. The Software to reset the Battery - Coding it to the car system is required for the auto Start / Stop system. It also resets the Date of the install because apparently the car monitors Battery age and adjust for degradation. In the video he uses a VCDS program with a Laptop.
The OBD ELEVEN is a less expensive option & works with a tablet or Smartphone. I have used it to replace the battery in my 2017 Golf Alltrack. This device will identify Fault Codes in the A3 E-tron -and you can modify some features in the E-tron for little cost.
Same procedure using "Adaptation". Sold direct from obdeleven.com or Amazon. As I understand ir... The VCDS has greater capabilities if you plan to make mods to the car or need more complex problem evaluations.
Hope this helps.
