What are some common issues with the Audi A2's internal combustion engine?

I've been experiencing some trouble with the engine in my Audi A2 and I'm curious about what problems other owners have encountered. Are there any known issues with the internal combustion engine?

Some common issues with the Audi A2's engine include failed coil packs, worn out valve guides, and leaking camshaft seals. Avoid problems by regularly maintaining your car and addressing any warning lights immediately.

One common problem with the Audi A2's engine is carbon build-up on the intake valves, resulting in reduced performance and potential misfires. Consider having your intake valves periodically cleaned to prevent this issue.

It's important to note that pre-2003 A2 models may have a faulty timing belt tensioner, which can lead to catastrophic engine failure. If your car is affected, make sure to get the tensioner replaced as soon as possible.