How do I troubleshoot a faulty starter motor in my Audi 80?

My Audi 80 is having trouble starting and I suspect it may be due to a faulty starter motor. Can anyone provide tips on how to diagnose and solve this issue?

First, try checking the connections of the starter motor to make sure they are secure. If that doesn't work, you may need to replace the motor entirely.

One common issue with faulty starter motors is worn out gear teeth. Inspect the teeth for any signs of damage and replace them if necessary.