17/06/2026 8:35 am
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My 2018 A6 is squealing bad before my road trip next week. I saw online that I need a scan tool to retract the rear parking brake, but others say you can just use a 9v battery. Im confused on what actually works. Anyone got a reliable DIY guide for this?
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17/06/2026 8:35 am
Do not mess around with the 9v battery trick! It is super risky and if you fry the parking brake motor, you will be out hundreds of dollars. I did this job on my own A6 and saved a ton of cash. Here is the ultimate budget way to get this done safely:
- Get the Ancel VD700 OBD2 Scanner. It is super cheap, works perfectly for VAG cars, and retracts the calipers with one click! Absolutely amazing tool for the price.
- Buy the Power Stop KOE6375 Front and Rear Brake Kit online. You get awesome OE quality rotors and pads for way less than dealership prices.
- Make sure to clean the carrier brackets thoroughly with a wire brush to prevent squeals. Doing it yourself saves you like 800 bucks in labor! Love saving cash on these easy DIY jobs.
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17/06/2026 9:00 am
^ This. Also, I would suggest grabbing the Ancel VD700 OBD2 Scanner for seventy bucks. Just make sure your battery is on a charger when you run it so it doesnt lose connection.