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Service bulletins for the 2017 Porsche 911

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.

578 on file from NHTSA, as of 2026-10-19.

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Only bulletins with component: Exhaust and emissions are shown. Show all

Bulletins, newest first
9912141-152021-06-28. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. WF93 - Replacing Vacuum Line for Exhaust Flaps
991222-162021-06-28. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE. WG13-Checking Tailpipe Covers and Adjusting if Necessary (Workshop Campaign) Tailpipe covers on exhaust system
122-H3M7J-052018-05-21. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; EQUIPMENT. Subject: Exhaust system Information: Themonolith in the catalytic converter may be damaged. Remedial Action: To verify catalytic converter damage, both oxygen sensors ? Installation overview of oxygen sensors on engine side, cylinders 1-3 (shown on the 911 Carrera) -1 and 2- can be removed and the catalytic converter examined using a video endoscope prior to any disassembly.
122-A4M7P-082016-10-06. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. "OBSERVATIONS HAVE SHOWN THAT THE CHASSIS STILL SHOWS A CERTAIN AMOUNT OF SETTLING BEHAVIOR WITHIN THE FIRST 3,700 MILES (6,000 KM). DURING PERFORMANCE-ORIENTED DRIVING ON A RACE TRACK – PARTICULARLY IF THE VEHICLE IS FREQUENTLY DRIVEN AT ITS PERFORMANCE LIMITS – COMBINED WITH CHASSIS SETUP TOLERANCES, THIS CAN QUICKLY CAUSE THE WHEELS TO COME INTO CONTACT WITH PERIPHERAL COMPONENTS."

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.