Porsche bulletin No. 147-18
What it saysTechnical information for the complaint - rattling noise from around the crank drive NHTSA’s full summary ↓
Porsche filed this with NHTSA as a service bulletin dated Jan 26, 2024, received Aug 5, 2022, about the equipment — 2 documents under this number. It names 15 model years (2018–2024). 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.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationTechnical information for the complaint - rattling noise from around the crank drive
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| No. 147-18 | Service bulletin | Jan 26, 2024 | 10249907 | PDF, 104 KB |
| No. 147-18 | Service bulletin | Jul 20, 2022 | 10217235 | PDF, 48 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.
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Model years it names
Source: as the manufacturer filed themAlso filed against model years this site has no page for: 2018 Porsche 718 Spyder; 2019 Porsche 718 Spyder; 2021 Porsche Cayman GT4; 2023 Porsche Redundant Cayman GT4.
A vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 11 model years this bulletin names have filed 38 complaints with NHTSA since 2015. 9 of them name Engine — 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 travelling on the freeway on 7/30/23, I experienced a "low oil pressure, shut down engine immediately" warning. I pulled over to the shoulder and was unable to restart the car. It was towed to Porsche Carlsbad dealership where it is awaiting analysis by Porsche. The car has 4900 miles on it and is under the MFG warranty
2021 Porsche 718 · Engine · filed with NHTSA Aug 7, 2023 · ODI 11537030
The cars auto idle off function that saves fuel by turning the engine off at stop signs and lights in inoperative. I have had it into multiple dealers 4 times since 12/2020 with the complaint. In my opinion there is a temperature sensor that is malfunctioning and not allowing the car to go into the fuel saving mode.
2019 Porsche 911 · Engine · filed with NHTSA Feb 11, 2021 · ODI 11395726
Heard a ticking noise while driving. Pulled over, on freeway. It was not a safe situation parked on side of a major freeway. Turned off car to look around the engine and found nothing. Started the car again and it died within 5 seconds. The electric system completely died after and would not crank.
2024 Porsche 911 · Engine · filed with NHTSA Mar 16, 2024 · ODI 11577795
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 equipment
Source: same model, same component group31 other manufacturer communications filed against these Porsche models under the same component group (equipment), newest first. The eight newest are listed; the rest are on the Porsche list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| No. 210-20 | Service bulletin | Apr 22, 2024 | Instructions on how to replace the intake pipe in the event that there is a leak on the right side of the turbocharger. |
| WPQ1 | Service bulletin | Apr 8, 2024 | Porsche intranet posting with information on workshop campaign - WPQ1 - Checking top door hinges (body side) and reworking if necessary |
| No. 193-23 | Service bulletin | Apr 8, 2024 | Technical information for WPQ7 - replacing front left and right backrest covers and headrest covers |
| WPQ2 | Service bulletin | Jan 20, 2024 | Porsche intranet posting with information on workshop campaign WPQ2 - recoding loudspeaker amplifier |
| No. 121-23 | Service bulletin | Jan 19, 2024 | Technical information for WPH6 - replacing air cleaner housings and air cleaner cartridges |
| WPH7 | Service bulletin | Dec 7, 2023 | Porsche intranet posting with information on workshop campaign WPH7 - reworking contact assignment on the convertible top plug |
| No. 19-21 | Service bulletin | Nov 15, 2023 | Instructions on how to fix a blurred camera image of the reverse camera, or water stains on the lens. |
| No. 38-23 | Service bulletin | Nov 14, 2023 | Instructions on manufactures certificate for approved Porsche C40 engine oils |
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. 147-18 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. 147-18 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. 147-18 cover?
The manufacturer filed it against 15 model years: 2023 Porsche 718, 2022 Porsche 718, 2021 Porsche 718, 2020 Porsche 718, 2024 Porsche 911, 2023 Porsche 911 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.