# Service campaign NCU \- 2026060003

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 campaign
- NHTSA id: 11034035
- Published by NHTSA: 2026\-06\-23
- Manufacturer's number: NCU \- 2026060003
- Manufacturer's date: 2026\-06\-12
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

1. Perform power disconnect for high\-voltage on\-board electrical system. For basic data, see AR47.70\-P\-1000SE. 2. Replace coupling housing of high voltage disconnect device \(A\). For basic data, see AR47.70\-P\-1000\-01EQ. 3. Commission high\-voltage on\-board electrical system. For basic data, see AR47.70\-P\-1000SE.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11034035-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11034035-9999.pdf)

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

## Vehicles listed

- 2025 MERCEDES\-BENZ AMG C43 4MATIC
- 2025 MERCEDES\-BENZ AMG C63 S E 4MATIC\+
- 2025 MERCEDES\-BENZ C 300
- 2025 MERCEDES\-BENZ C 300 4MATIC

JSON: [/v1/bulletins/11034035](/v1/bulletins/11034035)

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