Why is my Audi A5's accelerator pedal hard to press?

I've noticed that my Audi A5's accelerator pedal has become increasingly difficult to press. What could be causing this issue and what steps can I take to fix it?

One possible reason for this issue could be a buildup of dirt and debris in the accelerator pedal mechanism. It's important to regularly clean and lubricate the mechanism to prevent this problem.

If cleaning and lubricating the mechanism doesn't solve the problem, it's possible that the accelerator pedal itself is damaged or worn out. In this case, it's best to take your Audi to a professional mechanic for further diagnosis and repair.

Another potential cause could be a problem with the throttle body or the engine's electronic control unit. These components may need to be checked and possibly replaced by a trained technician.