Porsche Cayenne, Porsche Panamera, model years 2011 to 2012. Filed by Porsche Cars North America, Inc. and reported to NHTSA on 12 July 2012. 270 vehicles potentially affected.
What the notice says Porsche is recalling certain model year 2011-2012 panamera turbo, 2012 panamera turbo s, and 2012 cayenne turbo vehicles. the turbine wheel of a turbocharger may fracture due to a casting defect. if a fracture occurs, vehicle performance will be decreased and the turbine shaft may fracture.
Is your vehicle included? Check with your VIN at NHTSA, or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on.
Porsche's own number for this recall: AC04. That is the number on the owner letter and on the dealer paperwork. 12V329 is the number NHTSA gave the same campaign, and the number this page is filed under. They are one recall, written two ways.
What owners ask about this recall
- Which vehicles does recall 12V329 cover?
- Porsche Cayenne, Porsche Panamera, model years 2011-2012.
- What is wrong with them?
- PORSCHE IS RECALLING CERTAIN MODEL YEAR 2011-2012 PANAMERA TURBO, 2012 PANAMERA TURBO S, AND 2012 CAYENNE TURBO VEHICLES. THE TURBINE WHEEL OF A TURBOCHARGER MAY FRACTURE DUE TO A CASTING DEFECT. IF A FRACTURE OCCURS, VEHICLE PERFORMANCE WILL BE DECREASED AND THE TURBINE SHAFT MAY FRACTURE.
- What can happen if it is not put right?
- IF THE SHAFT FRACTURES, OIL MAY BE DRAWN INTO THE EXHAUST SYSTEM, RESULTING IN SMOKE AND THE INCREASED RISK OF A FIRE.
- Is there a fix yet?
- Yes, and it is free. PORSCHE WILL NOTIFY OWNERS, AND DEALERS WILL REPLACE THE TURBINE WHEELS, FREE OF CHARGE. THE RECALL BEGAN ON AUGUST 31, 2012. OWNERS MAY CONTACT PORSCHE AT 1-800-767-7243.
- What should I do now?
- Check your own vehicle by its VIN with NHTSA, which is the record to act on. Porsche calls this recall AC04, which is the number on the owner letter and the dealer paperwork.
Answered from the register this site holds. NHTSA is the record to act on.
What the authority says can happen if this is not fixed: “IF THE SHAFT FRACTURES, OIL MAY BE DRAWN INTO THE EXHAUST SYSTEM, RESULTING IN SMOKE AND THE INCREASED RISK OF A FIRE.”
affected
in the notice
caught
| Campaign | 12V329 |
|---|---|
| Filed by | PORSCHE CARS NORTH AMERICA, INC. |
| System at fault | Engine And Engine Cooling:Engine:Gasoline:Turbo/Supercharger |
| Reported to NHTSA | 12 July 2012 |
| Model years | 2011-2012 |
| Vehicles named | PORSCHE CAYENNE, PORSCHE PANAMERA |
What the notice says today
The consequence
IF THE SHAFT FRACTURES, OIL MAY BE DRAWN INTO THE EXHAUST SYSTEM, RESULTING IN SMOKE AND THE INCREASED RISK OF A FIRE.
The remedy
PORSCHE WILL NOTIFY OWNERS, AND DEALERS WILL REPLACE THE TURBINE WHEELS, FREE OF CHARGE. THE RECALL BEGAN ON AUGUST 31, 2012. OWNERS MAY CONTACT PORSCHE AT 1-800-767-7243.
What it said before
This campaign is in the register but not yet in the dated wording archive, so we cannot yet say whether its text has moved. It enters the archive on the next pass.
This is one of 588 notices in the record whose component field names engine and engine cooling. Across that group the median wait before owners were written to was 47 days.
Last checked . No change has been recorded in the wording.
The models named here, across their whole recall history
How to cite this record
Quoting the wording on this page means quoting a version, so the date belongs in the citation:
CarsMultiverse, recall 12V329, wording as read on 17 September 2026. https://carsmultiverse.com/recall/12v329/
The cross-border matches used on this site are deposited as a citable dataset: doi:10.5281/zenodo.22087136. The recall wording itself is published by the national authority named above and is theirs, not ours.
The recall record and its wording are published by the US National Highway Traffic Safety Administration and are US Government public domain. The dated archive, the comparison and any before-and-after above are CarsMultiverse. How fresh every engine behind this page is, is public on the status page. To check a specific vehicle, use NHTSA’s own VIN lookup.
Other Porsche notices we hold
- 25V896: 2019-2025 Cayenne, Cayenne E-Hybrid, 2020-2025 911, Taycan, 2024-2025 Panamera, and 2025 Panamera E-Hybrid
- 25V634: 2024-2026 Panamera, Cayenne, and 2025 Panamera E-Hybrid
- 25V492: 2024-2025 Macan 4 Electric
- 25V415: 2025 Panamera E-hybrid, Taycan, and Panamera
- 25V221: 2022-2023 Taycan
- 25V220: 2024-2025 Macan Electric
- 25V079: 2025 911
- 25V078: 2023 911
All 92 Porsche campaigns we hold · Every manufacturer in the record
The fingerprint of this notice
We take a SHA-256 of each of the three blocks of text the authority publishes and keep the first eight characters. As we last read campaign 12V329 on 23 August 2026, they were:
- Defect summary
7cd2ae4d - Consequence
21992801 - Remedy
ecbedbad
We first read this notice on 21 August 2026. It has not moved since. If it ever does, these characters will not match, and the change will be dated here.
The wording we hold for 12V329 · how the whole register is watched
This notice names one vehicle among several registers that have written about it. Every notice this site holds for the Porsche Panamera, in all seven, is kept on that vehicle's own page, with the newest in each.
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Owners of these cars
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