# Service bulletin NCU\-2019080019

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: 10178745
- Published by NHTSA: 2020\-08\-24
- Manufacturer's number: NCU\-2019080019
- Manufacturer's date: 2020\-07\-10
- NHTSA component: EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; STEERING:GEAR BOX \(OTHER THAN RACK AND PINION\); STEERING

## NHTSA's summary

The aluminum bolts of the steering gear housing cover and the aluminum bolts on the powerpack may corrode in corrosion\-critical countries where exposed combination with particularly aggressive thawing agents \(saltwater mixtures\) in certain vehicles of the model series 166, 292, W/X 204, 212, 213, 205, 253, 218, 222, 217, 207. This fault pr expected in countries that do not use these thawing agents. In the case of advanced corrosion, the bolt strength may be impaired. Over time and with ongoing corrosion in combination with associated with driving, it cannot be excluded that a corroded bolt may break in individual cases. If all 3 mounting bolts of the powerpack were to break over time, this could detach from the The power steering would as a result fail.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10178745-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10178745-9999.pdf)

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

## Components

Equipment and accessories, Steering, Steering gear

## Vehicles listed

- 2012 MERCEDES BENZ E
- 2012 MERCEDES\-BENZ AMG ML63
- 2012 MERCEDES\-BENZ CLS
- 2012 MERCEDES\-BENZ CLS550
- 2012 MERCEDES\-BENZ CLS63
- 2012 MERCEDES\-BENZ E350
- 2012 MERCEDES\-BENZ E550
- 2012 MERCEDES\-BENZ E63
- 2012 MERCEDES\-BENZ ML350
- 2012 MERCEDES\-BENZ ML500
- 2012 MERCEDES\-BENZ ML550

JSON: [/v1/bulletins/10178745](/v1/bulletins/10178745)

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