Why does my Audi A1's engine make a high-pitched noise when I accelerate?

I have recently noticed a high-pitched noise coming from my Audi A1's engine when I accelerate. It doesn't seem to affect the performance of the car, but it is quite loud and concerning. What could be causing this noise?

The high-pitched noise is most likely caused by a worn out serpentine belt or a faulty tensioner. It is important to have this checked and replaced if necessary, as a worn out belt can eventually cause damage to other engine components. I suggest bringing your car to a trusted mechanic for a thorough inspection and any necessary repairs.

I had a similar issue with my Audi A1, and it turned out to be a problem with the exhaust system. There was a small leak, which was causing the high-pitched noise when I accelerated. I suggest taking your car to a certified Audi dealership for diagnosis and repair.