What could be the cause of a rough idle on an Audi 80?

I've noticed my Audi 80 has a rough idle when I start it up in the morning. It lasts for a few minutes and then goes away. What could be causing this issue and what steps can I take to fix it?

The most common cause of a rough idle in an Audi 80 is a dirty fuel injector. You can clean the injector using a fuel injector cleaner or take it to a mechanic for a deep cleaning.

Another potential cause is a faulty ignition coil. If the coil is malfunctioning, it can cause misfires and a rough idle. Have your mechanic check the ignition coil and replace it if necessary.