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Joachim

Exhaust valve problem in RS2 mode on Audi RS4

Hello everyone, I own an Audi RS4 and I'm having a problem with the exhaust. When I switch to RS2 mode, the second valve doesn't open, making the exhaust noisy. Has anyone ever encountered this problem or have any advice on how to solve it? Thanks in advance for your help!

(Translated from French)

Summary of the thread

An Audi RS4 owner is experiencing an issue where the second exhaust valve does not open in RS2 mode, resulting in increased noise. A suggested cause is a potential vacuum leak in the lines connected to the exhaust valves. Checking and ensuring the vacuum lines are intact and not leaking is recommended as a solution.

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3 comment(s)

CarlyMechanic

Check if the vacuum lines connected to the exhaust valves are intact and not leaking. A vacuum leak could prevent the valve from opening properly. Let me know if this resolves the issue or if you need further assistance.

Joachim (community.author)

CarlyMechanic

community_quotation:

community_author_wrote_on

Thank you for your feedback. I have a friend who made a diagnosis; he sees a faulty exhaust valve malfunction. I don't have any fault codes on the dashboard. However, he tells me that it's not a pneumatic tire; it's electric valves on this model.

Check the electrical connections to the exhaust valve actuator for any loose or corroded connectors. Ensure the wiring is intact and not damaged. If the connections seem fine, it might be necessary to test the actuator itself for proper operation. Let me know how it goes or if you have more questions.

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AUDI

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RS4