# Service bulletin Initial NCU \- 44

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: 10177238
- Published by NHTSA: 2020\-07\-13
- Manufacturer's number: Initial NCU \- 44
- Manufacturer's date: 2020\-06\-17
- NHTSA component: POWER TRAIN:DRIVELINE:DRIVESHAFT; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT

## NHTSA's summary

Propeller Shaft Mercedes\-Benz AG \(“MBAG”\), the manufacturer of Mercedes\-Benz vans, has determined that on certain Metris vehicles from platform 447 \(VS20\), the propeller shaft may not be attached to the intermediate bearing according to the specification. If the propeller shaft is improperly attached to the intermediate bearing, over time damage to the propeller shaft joint could occur. The rotational imbalance of the shaft could lead to vibrations to the underbody of the vehicle, and to inaccurate signals to the airbag control unit. If improper signals are sent to the airbag control unit, the frontal airbags could inadvertently deploy, increasing the risk of injury to front occupants and increasing the risk of a crash.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10177238-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10177238-9999.pdf)

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

## Components

Equipment and accessories, Transmission and driveline, Driveshaft

## Vehicles listed

- 2019 MERCEDES\-BENZ METRIS

## Recalls for the same vehicles and component

- [20V340000](/recalls/nhtsa/20V340000.md), 2020-06-09: AIR BAGS; POWER TRAIN:DRIVELINE:DRIVESHAFT

## Other bulletins for the same vehicles and component

- [V\-RC\-2020070008](/bulletins/10180324.md), 2020-09-28, Service bulletin: POWER TRAIN:DRIVELINE:DRIVESHAFT. Propeller Shaft

JSON: [/v1/bulletins/10177238](/v1/bulletins/10177238)

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