What are the common issues with Audi engine start-stop systems?

I recently purchased a 2020 Audi A6 with an engine start-stop system, but I've been experiencing some issues with it. Sometimes the engine doesn't start when I release the brake, and other times it feels sluggish when it starts. Can someone help me understand what's going on with my car's start-stop system?

Based on my experience as a mechanic, these issues are commonly seen in vehicles with start-stop systems. It could be due to a faulty battery or a malfunctioning start-stop system. I would suggest getting your car checked by a certified mechanic to determine the exact cause.

I have a 2019 Audi Q5 with an engine start-stop system, and I've faced similar issues. I found that keeping the battery charged and regularly using a good quality fuel additive can help improve the performance of the start-stop system.

I've heard that the start-stop feature can cause extra wear and tear on the starter and battery of Audi vehicles. Have you considered disabling the system to prevent any further issues? This can be done through a simple coding change by a qualified technician.