# Service bulletin NCU\-2020120003

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: 10186155
- Published by NHTSA: 2021\-02\-01
- Manufacturer's number: NCU\-2020120003
- Manufacturer's date: 2020\-12\-11
- NHTSA component: ENGINE

## NHTSA's summary

Correct tightening torque of threaded connection between exhaust system and catalytic converter

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10186155-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10186155-9999.pdf)

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

## Components

Engine

## Vehicles listed

- 2020 MERCEDES\-BENZ A 220
- 2020 MERCEDES\-BENZ AMG A35

JSON: [/v1/bulletins/10186155](/v1/bulletins/10186155)

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