How can I adjust the tension on the timing belt in my Audi 80?

I recently noticed some noise coming from my engine and think it may be due to a loose timing belt. Can anyone provide step-by-step instructions on how to adjust the tension on the timing belt in my Audi 80?

First, make sure your engine is cool and remove any covers or parts that may be blocking access to the timing belt. Then, locate the tensioner and loosen the lock nut. Use a wrench to turn the tensioner adjustment bolt and tighten until the belt has about 1/4 inch of give. Finally, retighten the lock nut and reassemble any parts you removed.

I recommend using a timing belt tension gauge to ensure the proper tension is set for your specific engine model. If you don't have a gauge, you can estimate by using the thumb test: the belt should be tight enough that you can only twist it about 90 degrees with your thumb and pointer finger.

Before adjusting the tension, check the condition of your timing belt. If it's worn or damaged, it should be replaced before attempting any adjustments. Also, make sure to refer to your specific car's manual for the correct tension specifications.