What are some common issues with the Audi A2's fuel system?

I have been having trouble with my Audi A2's fuel system. It seems to be consuming more fuel than usual and the engine is not running smoothly. I have tried changing the fuel filter but it hasn't helped. What could be causing this issue and how can I fix it?

Hi Sara, it sounds like your Audi A2's fuel pressure regulator may be faulty. The fuel pressure regulator helps maintain proper fuel pressure in the system. If it is not working correctly, it can cause the engine to consume more fuel and run rough. I would recommend getting it checked and replaced if needed by a trusted mechanic.

Hey Sara, another common issue with the Audi A2's fuel system is a clogged fuel injector. This can happen over time due to impurities in the fuel. You can try using a fuel system cleaner to clear out any blockages. If that doesn't work, you may need to have the injectors professionally cleaned or replaced.