I have a 2005.5 A4. When it’s hot outside, I have a hard time turning the key in the ignition. Sometimes the wheel is locked and sometimes it is not. That doesn’t seem to matter. This only happens when it’s above 70 degrees. Essentially, I can’t turn the key to start the car. I had the ignition cyclinder replaced and the keys reprogrammed last fall. It was fine all winter, but now that summer is here, I’m starting to have the same problem.

Any ideas?