# Service bulletin 0304

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: 10011678
- Published by NHTSA: 2005\-01\-28
- Manufacturer's number: 0304
- Manufacturer's date: 2004\-11\-29
- NHTSA component: SERVICE BRAKES, AIR

## NHTSA's summary

REAR BRAKE AIR GUIDE: ALUMINUM RING COMES LOOSE. \*TC

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Brakes

## Vehicles listed

- 2004 PORSCHE 911 CARRERA

## Other bulletins for the same vehicles and component

- [No. D752](/bulletins/11028352.md), 2026-02-05, Service bulletin: SERVICE BRAKES. Parts information for parts withdrawal involving the caliper without brake pads. The part numbers affected are in the attached PDF. The vehicles associated are cars that use the part numbers in the PDF.
- [No. D749](/bulletins/11026376.md), 2025-12-05, Service bulletin: SERVICE BRAKES. Parts information for parts withdrawal involving the brake disc 9Y0615301AJ
- [D719](/bulletins/11018757.md), 2025-06-02, Service bulletin: SERVICE BRAKES. Parts information for Parts Withdrawal \- 1 Set of Brake Pads for Disk Brake. Vehicles included are all cars that use part number 992698451R
- [No. D689](/bulletins/11005786.md), 2024-08-06, Service bulletin: SERVICE BRAKES. Parts information for parts withdrawal involving the brake hose 9J1611707F and 9J1611708F
- [No. D684](/bulletins/11002860.md), 2024-07-02, Service bulletin: SERVICE BRAKES. Parts information for parts withdrawal involving the retainer for brake hose/brake line
- [No. D681](/bulletins/11001069.md), 2024-06-05, Service bulletin: SERVICE BRAKES. Parts information for parts withdrawal involving the retainer for brake hose/pressure difference sender. \(9J1611845C, 9J1611846C, PAB906051C\)
- [No. 2403](/bulletins/10252562.md), 2024-04-03, Service bulletin: SERVICE BRAKES, HYDRAULIC. Special tools and equipment information for brake caliper pins for the 911, Boxster, and Cayman
- [No. 1801.4](/bulletins/10209901.md), 2022-04-05, Service bulletin: SERVICE BRAKES. Advanced technical information for a brake squeal.
- [ATIALL41605](/bulletins/10198525.md), 2021-06-28, Service bulletin: EQUIPMENT; SERVICE BRAKES. Understanding and addressing brake squeal complaints.
- [122\-S6Q2R\-06](/bulletins/10188291.md), 2021-03-06, Service bulletin: EQUIPMENT; SERVICE BRAKES. Resubmitting at request of Mr. Bernard Hardgrave. Advanced technical information on brake fluid for all Porsche vehicles.

JSON: [/v1/bulletins/10011678](/v1/bulletins/10011678)

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