I have noticed a decrease in performance and a strange noise coming from the engine in my Audi A4. I suspect it may be related to the turbocharger system, but I'm not sure. Can anyone provide some insight on common issues with this system?
ReplyThe most common issue with the turbocharger system in the Audi A4 is clogged or stuck wastegate valves. This can cause a decrease in performance and a whistling noise from the turbo.
Another common issue is a faulty boost pressure sensor, which can cause the turbo to over-boost or under-boost. This can result in performance issues and a check engine light.
I recommend checking the vacuum lines and connections in the turbocharger system. These can often become loose or cracked, causing issues with performance and strange noises.
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