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Service bulletins for the 2021 Porsche 718 Cayman

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.

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

By type

By component

By trouble code

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
No. 16-252025-07-02. Service bulletin. ENGINE. Manufacturers certificate for an Overview of Approved Porsche C30 Engine Oils. The vehicles affected are cars that use engine C20 oil as of MY 2021.
No. 15-252025-07-02. Service bulletin. ENGINE. Manufacturers certificate for an Overview of Approved Porsche C20 Engine Oils. The vehicles affected are cars that use engine C20 oil as of MY 2021.
No. 03-252025-03-06. Service bulletin. FUEL/PROPULSION SYSTEM; ENGINE. Manufacturer's Certificate - Overview of Approved Porsche C40 Engine Oils (03/25)
No. 02-252025-03-06. Service bulletin. FUEL/PROPULSION SYSTEM; ENGINE. Manufacturer's Certificate - Overview of Approved Porsche C30 Engine Oils (02/25)
No. 01-252025-03-06. Service bulletin. FUEL/PROPULSION SYSTEM; ENGINE. Manufacturer's Certificate - Overview of Approved Porsche C20 Engine Oils (01/25)
No. 98-132025-03-05. Service bulletin. ENGINE. Technical Information - Replacement of Cap for Coolant System(98/13)
No 223-242025-03-05. Service bulletin. ENGINE. Symptom-based workshop manual - Assessment of Oxidized Cylinder Liners (SY 223/24)
No 147-172025-03-05. Service bulletin. ENGINE. Technical Information - Complaint- Warning "Engine Too Hot" and/or Coolant Leak in Coolant Pump Area: Checking Vacuum Lines and Valve Block/Change-Over Valve (147/17)
No. 222-20-22024-12-07. Service bulletin. ENGINE. Technical information for a Complaint - Check Engine Error Message in Conjunction with Loss of Power or a Creaking Noise after Switching off the Engine. Includes MY17-21 Cayman, Cayman , Cayman GTS, and Cayman T
No. D7032024-12-06. Service bulletin. ENGINE. Parts information for parts withdrawal involving the oil separator. The affected vehicles are cars that use part number 0PC115099A
No. 31-242024-10-07. Service bulletin. ENGINE. Manufacturers certificate with an overview on approved Porsche C30 engine oils. See attached for list of affected vehicles.
No. 30-242024-10-07. Service bulletin. ENGINE. Manufacturers certificate with an overview on approved Porsche C20 engine oils. See attached for list of affected vehicles.
No. D6942024-10-04. Service bulletin. ENGINE. Parts information for parts withdrawal involving the engine oil (00004321093)
No. 147-172024-09-05. Service bulletin. ENGINE. Technical information for complaint - warning "Engine Too Hot" and/or Coolant Leak in Coolant Pump Area: Checking Vacuum Lines and Valve Block
No. D6882024-08-06. Service bulletin. ENGINE. Parts information for parts withdrawal for the seal ring - 0PB115625A
No. D6872024-08-06. Service bulletin. ENGINE. Parts information for parts withdrawal involving the rear muffler/high pressure pump
No. D6832024-07-02. Service bulletin. ENGINE. Parts information for parts withdrawal for spoiler matt black/drive unit
No. 03-242024-04-03. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on the manufacturers certificate for allocation of approved engine oils
No. 22-232023-10-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. Manufacturers certificate for an overview of approved Porsche C40 engine oils.
No. 21-232023-10-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. Manufacturers certificate for an overview of approved Porsche C30 engine oils.
No. 20-232023-10-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION. Manufacturers certificate for an overview of approved Porsche C20 engine oils.
No. D6472023-09-09. Service bulletin. UNKNOWN OR OTHER; ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:PUMP. Parts information on parts withdrawal for the oil pump
No. 10-232023-09-08. Service bulletin. ENGINE AND ENGINE COOLING. Instructions on manufacturers certificate for approved Porsche C30 engine oils.
No. 14-232023-08-04. Service bulletin. ENGINE AND ENGINE COOLING. Manufacturers certificate for allocation of approved engine oils
No. 07-232023-03-04. Service bulletin. ENGINE AND ENGINE COOLING. Overview of approved engine C30 oils for all Porsche models that use C30 oil.

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