# Service campaign WST9

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 campaign
- NHTSA id: 11027314
- Published by NHTSA: 2026\-01\-07
- Manufacturer's number: WST9
- Manufacturer's date: 2025\-12\-02
- Campaign id or software version: WST9
- NHTSA component: ENGINE

## NHTSA's summary

Porsche intranet posting for information on stop delivery WST9. Retrofitting heat protection on coolant line

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11027314-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11027314-9999.pdf)

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

## Components

Engine

## Vehicles listed

- 2026 PORSCHE PANAMERA 4 E\-HYBRID
- 2026 PORSCHE PANAMERA 4S E\-HYBRID
- 2026 PORSCHE PANAMERA TURBO E\-HYBRID
- 2026 PORSCHE PANAMERA TURBO S E\-HYBRID

## Other bulletins for the same vehicles and component

- [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
- [No. 62\-26](/bulletins/11037794.md), 2026-10-02, Service bulletin: ENGINE; POWER TRAIN. Technical Information for Coolant Warning Light Lights Up: Suspected Coolant Loss on the Coolant Pump
- [GR13D802](/bulletins/11037070.md), 2026-09-04, Service bulletin: ENGINE; POWER TRAIN. Parts Information for Parts Withdrawal \- Coolant Regulator Housing
- [GR13D803](/bulletins/11037068.md), 2026-09-04, Service bulletin: ENGINE. Parts Withdrawal \- Control Valve
- [No. 2304\-2](/bulletins/11037057.md), 2026-09-04, Service bulletin: ENGINE; POWER TRAIN. Information on Advanced Technical Information for E3.I/G2 V8 – Oil/Air Separator Membrane Failure
- [13/26](/bulletins/11035916.md), 2026-08-06, Service bulletin: ENGINE. Allocation of Approved Engine Oils MY 2027 \(13/26\)
- [GR13D790](/bulletins/11034838.md), 2026-07-08, Other: ELECTRICAL SYSTEM; ENGINE. Parts Withdrawal \- Various Parts

JSON: [/v1/bulletins/11027314](/v1/bulletins/11027314)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20campaign%20WST9&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11027314&vehicle=Service%20campaign%20WST9)