Why is my Audi A3 experiencing engine problems?

I recently bought a used Audi A3 and have been experiencing some engine issues. The check engine light keeps coming on and the car is not running as smoothly as it should. What could be causing these problems and what should I do about it?

First, make sure to check your engine oil levels. Low levels can cause engine problems and may be a simple fix. If that doesn't solve the issue, it could be a problem with the spark plugs or fuel injectors. I recommend taking it to a mechanic to get a proper diagnosis.

If your Audi A3 has over 100,000 miles on it, it may be time to replace the timing belt. This can cause engine problems if it becomes worn out. Again, I suggest taking it to a mechanic for an inspection.