Subject: Cayenne S (9YA) As of 2018 Front exhaust pipes Symptom: Buzzing/vibrating noises in the exhaust...

Bulletin number

122-K8M7U-05

Component

Engine and engine cooling: exhaust system: manifold/header/muffler/tail pipe

Summary

Subject: Cayenne S (9YA) As of 2018 Front exhaust pipes Symptom: Buzzing/vibrating noises in the exhaust system area at an engine speed of approx. 1,100 rpm during deceleration. Cause: The exhaust system can expand in an unfavorable direction and become strained at operating temperature. Remedial Action: Loosen clamps on the exhaust system, bring the exhaust system to operating temperature and re-position the clamps.

Owners of these vehicles have filed 3 complaints in the engine category.