# Service bulletin 122\-R8W4S\-08

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: 10163756
- Published by NHTSA: 2019\-08\-12
- Manufacturer's number: 122\-R8W4S\-08
- Manufacturer's date: 2019\-07\-01
- NHTSA component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC; SERVICE BRAKES, HYDRAULIC; SERVICE BRAKES, AIR:DISC

## NHTSA's summary

Information about possible noise squeaks from Cayenne rear disk brakes due to high performance brakes being installed.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10163756-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10163756-9999.pdf)

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

## Components

Brakes

## Vehicles listed

- 2018 to 2019 PORSCHE CAYENNE

## Recalls for the same vehicles and component

- [19V735000](/recalls/nhtsa/19V735000.md), 2019-10-16: SERVICE BRAKES; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
- [2019078](/recalls/tc/2019078.md), 2019-02-20: Brakes
- [19V115000](/recalls/nhtsa/19V115000.md), 2019-02-20: SERVICE BRAKES; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

## 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. 211\-23](/bulletins/11027029.md), 2026-01-06, Service bulletin: SERVICE BRAKES; ELECTRICAL SYSTEM. Symptom based workshop manual for a Brake Symptom \- Yellow Warning Message “PSM Failure” in the Instrument Cluster: Checking Hydraulic Unit and Re\-Program PSM Control Unit
- [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. 122\-20](/bulletins/10233885.md), 2023-04-06, Service bulletin: SERVICE BRAKES, HYDRAULIC. Technical information on a complaint \- brake noise
- [No. 126\-20](/bulletins/10232397.md), 2023-03-04, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC. Technical information for a complaint \- error message "engine control system fault" when brake pedal is pressed slightly. Vehicle still moves normally.
- [No. 171\-21](/bulletins/10231393.md), 2023-02-07, Service bulletin: EQUIPMENT; SERVICE BRAKES, HYDRAULIC. Information on symptom based workshop manual \- creaking/squeaking noises when operating the brake pedal.

JSON: [/v1/bulletins/10163756](/v1/bulletins/10163756)

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