Porsche bulletin No. 104-20
What it saysInformation on Symptom Based Workshop Manual - noise symptom: rattling noises from the fuel tank area - replacing fuel tank with new type of fuel tank. NHTSA’s full summary ↓
Porsche filed this with NHTSA as a service bulletin dated Nov 15, 2025, received Sep 2, 2020, about the fuel/propulsion system — 6 documents under this number. It names 9 model years (2018–2026). 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 Cayenne 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 communicationInformation on Symptom Based Workshop Manual - noise symptom: rattling noises from the fuel tank area - replacing fuel tank with new type of fuel tank.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| No. 104-20 | Service bulletin | Nov 15, 2025 | 11026375 | PDF, 84 KB |
| No. 104-20 | Service bulletin | Apr 5, 2023 | 10235376 | PDF, 56 KB |
| No. 104-20 | Service bulletin | Jan 14, 2022 | 10207236 | PDF, 59 KB |
| No. 104-20 | Service bulletin | Sep 3, 2021 | 10202046 | PDF, 90 KB |
| No. 104-20 | Service bulletin | Aug 27, 2020 | 10179273 | not found |
| No. 104-20 | Service bulletin | Aug 7, 2020 | 10179208 | not found |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 9Y0201060 | — | — | |
| 9Y0201060B | N 91205201 Cheese head bolt with multiple-tooth head | — | eBay Motors → |
Read by machine from the document NHTSA serves (3 pages), read Sep 30, 2026. A part number is shown only where it matches Porsche’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote. Listings and prices on eBay Motors are the seller’s.
Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
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.
Doing the repair yourself, or pricing it before the shop does? Search the part by fitment on eBay Motors — the listing and the price are the seller’s.
Find the tank assembly for the 2026 Cayenne →Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
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 Cayenne
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 9 model years this bulletin names have filed 133 complaints with NHTSA since 2015. 23 of them name Engine, Fuel/Propulsion System — 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.
While driving my 2019 Porsche Cayenne S on the freeway, the check-engine light came on, followed by a message on the dashboard that read “Engine Control fault – Driving permitted – Visit workshop.” Moments later, the vehicle suddenly lost power and decelerated from about ~75 mph to around 55 mph, even though my foot was still on the…
2019 Porsche Cayenne · Engine · filed with NHTSA Nov 9, 2025 · ODI 11698394
As I was making a turn onto another avenue, and accelerating to blend into traffic flow, dashboard messages suddenly appeared 1)"Engine control error, driving still possible, see dealer." 2)"Active lane keeping not available, driving still possible, service required" 3)"Adaptive Cruise Control not available, driving still possible…
2024 Porsche Cayenne · Fuel/Propulsion System · filed with NHTSA Jul 5, 2025 · ODI 11671298
On my 2021 Porsche Cayenne Base, which is equipped with the 3.0L V6 EA839 engine, I brought the vehicle to the dealership for a recall service. During inspection, the dealership found a leaking water pump and quoted $8,500 for repairs. There were no visible signs of a coolant leak on the ground, indicating an internal seal failure.
2021 Porsche Cayenne · Engine · filed with NHTSA Aug 31, 2026 · ODI 11760942
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 group19 other manufacturer communications filed against the Porsche Cayenne 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 |
|---|---|---|---|
| No. 103-25-2 | Service bulletin | Sep 23, 2026 | Technical Information for Need to Replace Components of the High-Voltage Battery - High-Voltage Battery Control Unit / Cell module; No Mixed… |
| nO. d766 | Service bulletin | Feb 23, 2026 | Parts information for parts withdrawal involving the fuel filler flap and the charge cable for mains socket. Part numbers 976809857E and 7PP… |
| 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. 2521.1 | Service bulletin | Sep 26, 2025 | Instructions on advanced technical information for the Cayenne. DME P242100 – Fuel Tank Isolation Valve for Tank Ventilation System Stuck Op… |
| 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… |
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. 104-20 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. 104-20 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. 104-20 cover?
The manufacturer filed it against 9 model years: 2026 Porsche Cayenne, 2025 Porsche Cayenne, 2024 Porsche Cayenne, 2023 Porsche Cayenne, 2022 Porsche Cayenne, 2021 Porsche Cayenne and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.