Why does my Audi A3 lose power when accelerating uphill?

I've noticed that when I try to accelerate uphill, my A3 seems to lose power and struggle to maintain speed. What could be causing this issue?

One potential cause could be a clogged fuel filter. Try having it checked and replaced if necessary.

Another possible cause may be a faulty oxygen sensor. Get it tested and replaced if needed.

It could also be a problem with your car's spark plugs. Consider having them inspected and replaced if needed.