How do I troubleshoot a faulty transmission in my Ford Mondeo?

I have been experiencing some issues with my car's transmission and I'm not sure what steps to take to troubleshoot and fix the problem. Can someone please provide some guidance?

The first thing you should do is check your transmission fluid levels. If they are low, top them up and see if that resolves the issue.

If your fluid levels are fine, the next step would be to inspect the transmission filter for any clogs. A dirty filter can cause issues with gear shifting.

You can also try resetting the transmission's computer by disconnecting the battery for a few minutes and then reconnecting it. This can sometimes solve minor issues.

If none of the above solutions work, it may be time to take your car to a certified mechanic for further inspection.