# Service bulletin 122\-K4S5C\-06

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: 10109302
- Published by NHTSA: 2017\-08\-01
- Manufacturer's number: 122\-K4S5C\-06
- Manufacturer's date: 2012\-05\-15
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

Concerns: Engine oil level sensor Information: Unnecessary replacement of the engine oil level sensor We have discovered that engine oil level sensors are increasingly being replaced, but in subsequent tests carried out by the manufacturer, these oil level sensors are found to be functioning correctly. For this reason, we want to inform you that after filling the engine with engine oil, the oil level must be measured using the on\-board computer \(confirmation check\). If the confirmation check is not carried out, the "Check oil level" warning message will still be displayed. In addition, the "Check oil level" warning message will come on if the oil level has not been checked for a long time. In this case, check the oil level to determine the current oil level and correct it if necessary. The oil level should be checked regularly, e.g. whenever you refuel, as described in the Owner's Manual.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2012/MC-10109302-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2012/MC-10109302-0001.pdf)

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

## Components

Engine

## Vehicles listed

- 2009 to 2011 PORSCHE BOXSTER \(987\)
- 2012 PORSCHE BOXSTER S

## Other bulletins for the same vehicles and component

- [No. 28\-26](/bulletins/11037816.md), 2026-10-02, Service bulletin: POWER TRAIN; ENGINE. Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils. Note that this bulletin covers all models back to model year 1984, for which C40 engine oils are allocated.
- [No. 27\-26](/bulletins/11037813.md), 2026-10-02, Service bulletin: POWER TRAIN; ENGINE. Manufacturer's Certificate for Overview of Approved Porsche C20 Engine Oils. Note that the bulletin covers all models back to model year 1984, for which C20 engine oils are allocated.
- [No. 26\-26](/bulletins/11037812.md), 2026-10-02, Service bulletin: ENGINE; POWER TRAIN. Manufacturer's Certificate for Overview of Approved Porsche C30 Engine Oils. Note that the bulletin includes all models back to model year 1984, for which C30 engine oils are allocated.
- [No. 25\-26](/bulletins/11037808.md), 2026-10-02, Service bulletin: POWER TRAIN; ENGINE. Manufacturer's Certificate for Overview of Approved Porsche A40 Engine Oils. Note that this bulletin covers all vehicles from model year 1997 to 2020, for which A40 engine oils are assigned. Model years 1997\-2001 are not available for selection in the system.
- [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
- [20/26](/bulletins/11034777.md), 2026-07-07, Other: ENGINE. Overview of Approved Porsche C20 Engine Oils \(20/26\)
- [19/26 1701](/bulletins/11034776.md), 2026-07-07, Other: ENGINE. Overview of Approved Porsche C30 Engine Oils \(19/26\)
- [21/26 1701](/bulletins/11034775.md), 2026-07-07, Other: ENGINE. Overview of Approved Porsche C40 Engine Oils \(21/26\)
- [15/26 1701](/bulletins/11034774.md), 2026-07-07, Other: ENGINE. Overview of Approved Porsche A40 Engine Oils \(15/26\)

JSON: [/v1/bulletins/10109302](/v1/bulletins/10109302)

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