# Service bulletin 122\-H3M7J\-05

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: 10138293
- Published by NHTSA: 2018\-05\-21
- Manufacturer's number: 122\-H3M7J\-05
- Manufacturer's date: 2018\-04\-20
- NHTSA component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; EQUIPMENT

## NHTSA's summary

Subject: Exhaust system Information: Themonolith in the catalytic converter may be damaged. Remedial Action: To verify catalytic converter damage, both oxygen sensors ? Installation overview of oxygen sensors on engine side, cylinders 1\-3 \(shown on the 911 Carrera\) \-1 and 2\- can be removed and the catalytic converter examined using a video endoscope prior to any disassembly.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10138293-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10138293-0001.pdf)

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

## Components

Engine, Equipment and accessories, Exhaust and emissions, Catalytic converter

## Vehicles listed

- 2017 to 2018 PORSCHE 911

JSON: [/v1/bulletins/10138293](/v1/bulletins/10138293)

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