When should I replace my Audi A5's timing chain?

I have noticed that my Audi A5's engine is making strange noises. Is it time to replace the timing chain? And should I do it myself or go to a mechanic?

Replacing the timing chain is crucial, and should not be neglected if the engine is making strange noises. Do not attempt to do this yourself, as it requires specialized tools and knowledge. Take your car to a certified mechanic to ensure proper installation and avoid any further damage.

Yes, it is definitely time to replace your timing chain. Neglecting to do so can result in serious damage to your engine. It is recommended to take your Audi A5 to a trusted mechanic, as this is a complex and delicate procedure.