Service bulletins for the 2018 Porsche Cayenne
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
718 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Exhaust manifold, pipes and muffler are shown. Show all
| 122-K8M7U-05 | 2018-05-21. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; EQUIPMENT. 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. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.