# Service bulletin B180318

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: 10138385
- Published by NHTSA: 2018\-05\-21
- Manufacturer's number: B180318
- Manufacturer's date: 2018\-04\-01
- NHTSA component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

## NHTSA's summary

SERVICE ACTION: CHECK THE EXHAUST CLAMPS AT THE CATALYTIC CONVERTERS \(F90\): The screw clamps that secure the upper and lower catalytic converters \(1\) may loosen over time.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10138385-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10138385-0001.pdf)

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

## Components

Engine, Exhaust and emissions, Catalytic converter

## Vehicles listed

- BMW M5
- 2018 BMW M5

JSON: [/v1/bulletins/10138385](/v1/bulletins/10138385)

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