Why does my Audi A5 keep losing power?

I recently purchased a used Audi A5 and have been experiencing issues with sudden power loss. While driving, the car will start to lose acceleration and then completely shut off. I have checked the fuel lines and replaced the spark plugs, but the issue persists. What could be causing this and how can I fix it?

It sounds like your car may have a faulty fuel pump. This can cause inconsistent fuel flow and lead to sudden power loss. I recommend taking your car to a trusted mechanic to have it inspected and potentially replace the fuel pump.

Another potential issue could be a clogged air filter. A dirty air filter can decrease engine performance and cause power loss. Try replacing your air filter and see if that improves the issue.

I had a similar issue with my Audi A5 and it turned out to be a problem with the throttle body. It had become clogged with dirt and needed to be cleaned out. Consider having your throttle body inspected and cleaned if necessary.