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Service bulletins for the 1983 Porsche 944

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.

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

By type

By component

Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
PIWIS2201au2022-10-05. Service bulletin. EQUIPMENT. Information for PIWIS tester update 41.400.000 & .010.
PIWIS2201at2022-10-05. Service bulletin. EQUIPMENT. Information for PIWIS tester update #41.375.050
PIWIS2201as2022-10-05. Service bulletin. EQUIPMENT. Information for PIWIS tester update #41.375.045.
No. D6152022-10-05. Service bulletin. EQUIPMENT; FUEL SYSTEM, GASOLINE. Parts information for parts withdrawal involving the fuel filler flap
PIWIS2201ar2022-10-05. Service bulletin. EQUIPMENT. Information for PIWIS tester update #41.375.040
No. 1804.12022-09-08. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. Instructions on advanced technical information for the lubricant for the sunroof/sliding roof.
PIWIS2201an2022-09-08. Service bulletin. EQUIPMENT. Information for PIWIS tester update #41.300.000, .010 & .012
No. 72-202021-08-04. Service bulletin. WHEELS; EQUIPMENT; TIRES. List of approved wheels, tires, and spacers for the 944 and 944 Turbo.
No. D13.22021-07-06. Service bulletin. EQUIPMENT. Information on new PIWIS Tester program for independent repair facilities.
ATIALL416052021-06-28. Service bulletin. EQUIPMENT; SERVICE BRAKES. Understanding and addressing brake squeal complaints.
No. D4a2021-04-06. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Historical information on Porsche product evolution.
PIWIS2102j2021-04-02. Service bulletin. EQUIPMENT. Information on PIWIS Tester update 40.000.020 & .022.
Charging lockup2020-07-02. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Info on a new customer tool for looking up campaigns and recalls on their vehicle.
No. D4a2020-07-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Document showing the evolution of Porsche Vehicles since 1948.
PIWIS2001v2020-07-02. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. Information on new PIWIS tester update 39.500.020 and .025.
122-S9X3K-072019-07-08. Service bulletin. EQUIPMENT. Describes the loaner program for the N4P000 EMCO Hardness Tester, which can be rented out by dealers and used to test the temper of the spring plate.

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