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Service bulletins for the 2016 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.

558 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
No. 100-192023-02-07. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING. Technical information for AKB6 AEM Correction: reprogramming DME control unit
122-T8Y6E-062019-06-24. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. Instructions for setting the ready status for catalytic converters on Cayenne Diesel vehicles, since there is some difficulty in setting the status when the vehicle is finished having emissions related repairs and is ready to leave the Service Department.
122-P2Q5Z-102018-10-15. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. Subject: Documentation of the implementation of AG01 Emissions Recall in the IN-FORM tool Information: The implementation of campaign "AG01 Emissions Recall" was not documented fully according to specifications in the IN-FORM tool on the affected vehicles.
122-A6Z3V-032018-03-13. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE). Subject: Intake valves and intake ports Information: Carboned-up valves in the engine can be reworked and cleaned using cleaning equipment. If there is a complaint about knocking combustion, e.g. during acceleration at high load, the condition of the intake valves and portsmust be checked before doing any other work. If the check shows that the intake valves and intake ports have carbon deposits and are dirty, they must be cleaned using the VAS 294 011 - cleaning unit. There should be no need to replace the components. Date of Introduction: The VAS 294 011 - cleaning unit can be ordered immediately for dealers. Remedial Action: The VAS 294 011 - cleaning unit is used for cleaning carboned-up intake valves and intake ports. Compressed air is used to spray a special granulatemixture into the intake port,where it loosens and removes carbon build-up. The dirty granulate is extracted during spraying using an industrial vacuum cleaner.
122-G8Y6U-052017-09-14. Service bulletin. ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. Concerns: DME control unit Information: This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles. On the affected vehicles with Selective Catalytic Reduction (SCR), there is a possibility that the fault memory entry P20FE00 "Reducing agentmetering unit malfunction" will be entered in the DME control unit faultmemory and the Check Engine light will be activated because the diagnostic setup of the SCR system is too sensitive in the low-temperature range, although the AdBlue®metering quantity is still set correctly in this temperature range.
SB-CAY-1-1022016-03-17. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). PORSCHE: DUE TO INCORRECT USAGE THERE'S A POSSIBILITY THAT POSITIVE CRANKCASE VENTILATION VALVES MAY HAVE A BURR ON THE COVER. *CN

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