# Other CSA\-044

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: Other
- NHTSA id: 11019877
- Published by NHTSA: 2025\-07\-01
- Manufacturer's number: CSA\-044
- Manufacturer's date: 2025\-06\-11
- Campaign id or software version: CSA\-044
- NHTSA component: ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE \(EGR VALVE\)

## NHTSA's summary

From Mercedes\-Benz: Mercedes=Benz is extending the coverage of the exhaust gas recirculation \(EGR\) valve on vehicle from the vehicle's basic warranty of 5 years/100,000 miles to 15 years/150,000 miles \(whichever occurs first\) and applies to the vehicle regardless of ownership. Extension is being given because M/B has determined that dimensional variations during engine valve seating may cause the EGR valve to be switched off, and the vehicle may experience a loss of power and enter a limp home mode. The MIL will illuminate and remain illuminated until the vehicle is serviced. When this occurs, the driver may perceive a jerky driving experience while operating the vehicle.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11019877-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11019877-9999.pdf)

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

## Components

Engine, Exhaust and emissions, EGR valve

## Vehicles listed

- 2022 TIFFIN CAHABA
- 2023 TIFFIN GH1
- 2021 TIFFIN WAYFARER
- 2023 to 2024 TIFFIN WAYFARER

JSON: [/v1/bulletins/11019877](/v1/bulletins/11019877)

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