How to diagnose a faulty transmission on Audi A4

I recently noticed some issues with my A4's transmission. While driving, there were some strange noises and the gear shifts felt rough. How can I diagnose the problem and potentially fix it?

First, check the transmission fluid level and condition. Low or dirty fluid can cause shifting problems. Also, check for any leaks in the transmission system.

If the fluid is fine, the issue may be with the shift solenoids or sensors. Have a diagnostic scan tool plugged in to check for error codes.

Another common cause of transmission issues in Audi A4s is a faulty valve body. Consider getting it replaced if other diagnostics don't reveal any problems.