Problems owners report
Complaints filed with NHTSA about the 1984 Porsche 911, by the system named in each complaint. One complaint can name several.
- Seat belts1
NHTSA ODI complaints (public domain) · updated 23 Oct 2026 · 0 injuries and 0 deaths reported
Compared with other years
NHTSA ODI complaints by model year
New York safety inspections
At its first New York inspection the 1984 Porsche 911 failed the safety check 0.91% of the time — 18% more often than the average 1984 passenger car (0.77%). Median odometer at inspection: 78,912 miles.
NY DMV Vehicle Inspections (vezn-fmmk), initial inspections since Aug 2021 · how we count
In the Netherlands
211 first registered in 1984 are on Dutch roads; 96% arrived later as imports.
Most common APK defects
- Bandenspanning niet op juiste waarde31
- Dimlicht onjuist afgesteld16
- Schijf-, trommelrem loopt niet vrij16
- Remslang beschadigd, wapeningsmateriaal zichtbaar14
- Overmatige vloeistoflekkage overige vloeistoffen13
- Ruitensproeierinstallatie werkt niet9
- Slijtage/beschadiging wiellager hoorbaar of voelbaar7
- Band(en) aanwezig met een profieldiepte van 1,6 t/m 2,5 mm7
Colours
RDW Open Data: registered vehicles and APK defects (CC0) · defect descriptions in the RDW's Dutch wording
In the United Kingdom
54 cars built in 1984 were licensed for the road at the end of 2025, and 31 more were declared off the road (SORN).
Department for Transport and DVLA, vehicle licensing statistics (table VEH0124, year of manufacture) · Open Government Licence v3.0
MOT test results in Great Britain
In 2023, 232 of these cars first registered in 1984 took their annual MOT test. 81% passed first time; among all cars first registered in 1984 the figure was 73%.
| Failed on | These cars | All cars from 1984 |
|---|---|---|
| Lamps, reflectors and electrical equipment | 12.9% | 15.2% |
| Visibility | 4.7% | 6.6% |
| Brakes | 3.9% | 9.4% |
| Noise, emissions and leaks | 2.6% | 5.3% |
| Body, chassis, structure | 1.7% | 6.6% |
| Suspension | 1.7% | 8.0% |
DVSA anonymised MOT tests and results, 2023 (Department for Transport) · Open Government Licence v3.0 · first tests only; a fix made at the test station within the hour still counts as a fail
In New Zealand
21 1984 cars are on the New Zealand register; 90% arrived as used imports, 5% were sold new in New Zealand.
NZ Transport Agency Waka Kotahi, Motor Vehicle Register (March 2026) · CC BY 4.0
Recalls
THE REAR SEAT BELTS DO NOT INCLUDE EMERGENCY-LOCKING OR AUTOMATIC-LOCKING RETRACTORS. THE BELTS DO NOT COMPLY WITH FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 208, "OCCUPANT CRASH PROTECTION".
Whether a recall was fixed on a particular car is known only to the manufacturer: check the VIN at nhtsa.gov/recalls.
NHTSA recalls · summaries in NHTSA's own words
Service bulletins
What Porsche told its dealers about the 1984 Porsche 911: known faults, fixes and updates.
| Bulletin | Summary |
|---|---|
| 10252578 | Special tools and equipment information for the Boxster, Cayman, 911, and Panamera |
| 10246417 | Information for PIWIS tester update 42.300.050 & .052 |
| 10246387 | Instructions on manufactures certificate for approved Porsche A40 engine oils |
| 10246385 | Instructions on manufactures certificate for approved Porsche C30 engine oils |
| 10246384 | Instructions on manufacturers certificate for approved C20 engine oils |
| 10246374 | Information for PIWIS tester update 42.300.040 & .041 |
| 10246372 | Information for PIWIS tester update 42.300.035 |
| 10246369 | Information for PIWIS tester update 42.300.030 - .032 |
| 10246366 | Parts information for parts withdrawal involving the glass roof - 9J0877069EY and 9J0877069DY |
| 10244982 | Special tools and equipment information on PIWIS tester update 42.250.050 |
| 10243631 | Information on PIWIS tester update 42.250.045 |
| 10243630 | Information on PIWIS tester update 42.250.042 |
| 10243625 | Information PIWIS tester update 42.250.040 |
| 10243617 | Information on PIWIS tester update 42.250.032 |
| 10243616 | Information on PIWIS tester update 42.250.030 |
| 10243615 | Information on PIWIS tester update 42.200.025 |
| 10243598 | Information on PIWIS tester update 42.200.020 & .022 |
| 10243597 | Special tools and equipment information for all Porsche models. Diagnostic equipment standards. |
| 10243588 | Manufacturers certificate for an overview of approved Porsche A40 engine oils. |
| 10243587 | Manufacturers certificate for an overview of approved Porsche C40 engine oils. |
| 10243586 | Manufacturers certificate for an overview of approved Porsche C30 engine oils. |
| 10243585 | Manufacturers certificate for an overview of approved Porsche C20 engine oils. |
| 10243576 | Information on PIWIS tester update 42.200.000 42.200.012 |
| 10243573 | Special tools and equipment information for the Pico Oscilloscope Extended Functionality |
| 10242140 | Parts information for parts withdrawal on the locks made to original key code |
NHTSA manufacturer communications (public domain)