# Service bulletin No. 2509

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 11016772
- Published by NHTSA: 2025\-04\-07
- Manufacturer's number: No. 2509
- Manufacturer's date: 2025\-03\-31
- NHTSA component: POWER TRAIN

## NHTSA's summary

Advanced Technical Information \- 911 \(992.II\) – Rear Drive Shaft Rattle

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11016772-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11016772-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Transmission and driveline

## Vehicles listed

- 2025 PORSCHE 911

## Other bulletins for the same vehicles and component

- [No. 91\-26](/bulletins/11037847.md), 2026-10-02, Service bulletin: POWER TRAIN; ENGINE. Technical Information for Particles/Metal Chips/Residues in Engine Oil
- [SY No. 72\-26](/bulletins/11037832.md), 2026-10-02, Service bulletin: ENGINE; POWER TRAIN. Symptom\-based workshop manual for High\-Pitched “Whining” and Whistling Noises in Partial Load Operation from the Engine Area. Note that this bulletin only covers 911 Turbo S with the t\-hybrid system.
- [No. 72\-26](/bulletins/11037830.md), 2026-10-02, Service bulletin: ENGINE; POWER TRAIN. Symptom\-based workshop manual for High\-Pitched “Whining” and Whistling Noises in Partial Load Operation from the Engine Area. Note that this bulletin covers only 911 GTS t\-hybrid models.
- [No. 32\-26](/bulletins/11037826.md), 2026-10-02, Service bulletin: POWER TRAIN; ENGINE. Manufacturer's Certificate for Overview of approved Porsche C40 GT engine oils
- [No. 31\-26](/bulletins/11037825.md), 2026-10-02, Service bulletin: POWER TRAIN; ENGINE. Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils
- [No. 30\-26](/bulletins/11037822.md), 2026-10-02, Service bulletin: ENGINE; POWER TRAIN. Manufacturer's Certificate for Overview of Approved Porsche C20 Engine Oils
- [No. 29\-26](/bulletins/11037818.md), 2026-10-02, Service bulletin: ENGINE; POWER TRAIN. Manufacturer's Certificate for Overview of Approved Porsche C30 Engine Oils
- [No. 36\-26](/bulletins/11037801.md), 2026-10-02, Service bulletin: POWER TRAIN; ENGINE. Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils
- [GR12D787](/bulletins/11034835.md), 2026-07-08, Other: POWER TRAIN. Parts Withdrawal \- Drive Shaft
- [88/20 3734](/bulletins/11034601.md), 2026-07-07, Service bulletin: POWER TRAIN. Complaint \- Oil Leakages on Double\-Clutch Transmission \(Porsche Doppelkupplung \(PDK\)\): Observe Specified Procedure \(88/20\)

JSON: [/v1/bulletins/11016772](/v1/bulletins/11016772)

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