How can I replace the Audi 80's heater core?

I've noticed that my Audi 80's heater isn't functioning properly and I suspect it's because of a faulty heater core. How do I go about replacing it and what things do I need to keep in mind?

To replace the Audi 80's heater core, you will need to remove the dashboard and take out the old core. It's a time-consuming and delicate process, so make sure you have enough time and patience. I also recommend enlisting the help of a friend to make it easier.

Before attempting to replace the heater core, ensure that the issue is indeed caused by a faulty core and not a clogged or leaking coolant system. This will save you time and money in the long run.