Porsche bulletin No. 52-25
What it saysTechnical information on a Warning Messages / Information Messages for Gasoline Particle Filter (OPF): Provision of Supporting Diagnostic Information NHTSA’s full summary ↓
Porsche filed this with NHTSA as a service bulletin dated Jan 5, 2026, received Aug 7, 2025, about the fuel/propulsion system — 2 documents under this number. It names 2 model years (2016–2024). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
Get the next Porsche 911 bulletin by email Weekly, only when something new is filed. Nothing else; one-click unsubscribe.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationTechnical information on a Warning Messages / Information Messages for Gasoline Particle Filter (OPF): Provision of Supporting Diagnostic Information
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| No. 52-25 | Service bulletin | Jan 5, 2026 | 11028374 | PDF, 386 KB |
| No. 52-25 | Service bulletin | Jul 26, 2025 | 11021662 | PDF, 84 KB |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
Email me new Porsche bulletins for the 911
A weekly email, sent only in a week when Porsche files something new with NHTSA for the model you pick — service bulletins, campaigns, warranty extensions, over-the-air notices, every model year. Nothing else is sent; one-click unsubscribe in every message. Separate from recall alerts.
What owners reported
Source: NHTSA complaint databaseOwners of the 2 model years this bulletin names have filed 9 complaints with NHTSA since 2015. 5 of them name Electrical System, Fuel/Propulsion System, Wheels — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
The contact owns a 2024 Porsche 911. The contact received notification of NHTSA Campaign Number: 24V809000 (Wheels); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair.
2024 Porsche 911 · Wheels · filed with NHTSA Dec 27, 2024 · ODI 11632716
Purchased 2024 carrera S used (1 other owner) no car fax from Porsche down town LA in Dec. in January with around 10k miles. Car is driven just on weekends and now has 12k miles.
2024 Porsche 911 · Fuel/Propulsion System · filed with NHTSA Oct 14, 2026 · ODI 11771023
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the fuel/propulsion system
Source: same model, same component group17 other manufacturer communications filed against the Porsche 911 under the same component group (fuel/propulsion system), newest first. The eight newest are listed; the rest are on the Porsche list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| WNM9 | Service campaign | Jul 9, 2026 | Re-Programming DME Control Unit (Workshop Campaign) |
| WTB0 | Service campaign | Jul 6, 2026 | Reprogramming the engine ECU to resolve fan blockage fault codes |
| No. D764 | Service bulletin | Feb 13, 2026 | Parts information for parts withdrawal involving the multi-purpose additive for gasoline. Part number is 00004320902. The vehicles affected… |
| No. D756 | Service bulletin | Jan 30, 2026 | Parts information for parts withdrawal involving the - Diagnosis Pump for Fuel System 958906243B and 958906243A. Vehicles affected are ones… |
| No. 02-25 | Service bulletin | Jan 5, 2026 | Technical information for Need For Replacement of High-Voltage Battery On Vehicles Up to Model Year 2024: Observe Specified Procedure… |
| No. 2501 | Service bulletin | Apr 17, 2025 | Advanced Technical Information - E3. II Cayenne PHEV: DME P242100 - Fuel Tank Isolation Valve for Tank Ventilation System - Stuck Open |
| No. 06-25 | Service bulletin | Apr 17, 2025 | Technical Information - Warning Message “Chassis Failed” / Fault Memory Entry “C12EF00” in the Control Unit for Chassis Control (PASM) as Pa… |
| No. 08-25 | Service bulletin | Mar 28, 2025 | Technical Information - Important Information on External Power Connection and Jump-Lead Starting (08/25) |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Porsche, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Porsche No. 52-25 a recall?
No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the No. 52-25 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way. Every Porsche warranty extension on file lists the ones Porsche has filed.
Which vehicles does No. 52-25 cover?
The manufacturer filed it against 2 model years: 2024 Porsche 911, 2016 Porsche 911. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.