What are the common engine issues in a Audi 80 and how can they be addressed?

I have recently bought a used Audi 80 and have been experiencing some engine problems. I want to know what are the common engine issues in this model and how can I prevent or fix them.

One common issue with Audi 80 engines is the failure of the timing belt. This can lead to serious damage and expensive repairs. It is recommended to replace the timing belt every 60,000-80,000 miles as a preventive measure.

Another common problem is the malfunctioning of the engine control unit (ECU). This can cause issues with the fuel injection, ignition, and other engine components. If you notice any unusual behavior or warning lights, it is important to have the ECU checked and replaced if necessary.

Regular oil changes and maintenance can also prevent many engine issues in the Audi 80. It is recommended to use high-quality synthetic oil and follow the manufacturer's recommendations for service intervals.