Blower Motor Wiring May Overheat and Cause Fire – 2019-2020 Mercedes-Benz Sprinter

February 17, 2023 NHTSA CAMPAIGN NUMBER: 23V100000

Blower Motor Wiring May Overheat and Cause Fire

A wiring harness that overheats increases the risk of a fire.

 

NHTSA Campaign Number: 23V100

Manufacturer Daimler Vans USA, LLC

Components VISIBILITY, ELECTRICAL SYSTEM

Potential Number of Units Affected 52,993

 

Summary

Daimler Vans USA, LLC (DVUSA) is recalling certain 2019-2020 Mercedes-Benz Sprinter VS30 and Freightliner Sprinter VS30 vehicles. The heating, ventilation, and air conditioning (HVAC) blower motor circuit may be inadequate, which can allow the wiring harness to overheat.

 

Remedy

Owners are advised to only operate the HVAC front blower in manual (not automatic) mode whenever the engine is on. Do not use the maximum blower or lowest/highest temperature settings until the remedy is performed. Dealers will relocate and replace the fuse and wiring harness, free of charge. Owner notification letters are expected to be mailed April 14, 2023. Owners may contact DVUSA customer service at 1-877-762-8267. DVUSA’s number for this recall is 8297010.

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

 

Check for Daimler Vans Recalls

 


Chronology :

In February 2022 – as part of its ongoing field monitoring efforts – MBAG reviewed reported thermal events involving Sprinter vehicles. The available evidence regarding those reported events was limited due to multiple factors and did not allow for identification of any specific ignition source or burn pattern. MBAG then commenced with further and more complex analyses and intensified review of potentially relevant field data.

In fall 2022, MBAG received two additional field reports of thermal events (from outside the US). Both events appeared to involve the area of the vehicle’s fuse box. Based on that information, MBAG conducted an intensive engineering review of the involved vehicles, including onsite inspections. MBAG was also able to retrieve physical evidence, including damaged parts that allowed it to conduct computer tomography imaging and other analyses.

In early November, the technical data and analyses were evaluated to identify potential failure mechanisms, and potential consequences. To validate the findings and hypotheses of these analyses, MBAG ran driving tests including multiple temperature measurements throughout December 2022. In combination, the results of MBAG’s analyses and driving tests led to a more detailed preliminary determination regarding the root cause.

In January 2023, MBAG technically evaluated the results from the driving tests and compared them with field data and evidence. In parallel the population of potentially affected vehicles in the field was analyzed and potential remedies were investigated.

On February 10, 2023 MBAG determined that a potential safety risk cannot be ruled out and decided to conduct a recall.

MBAG is currently aware of 11 field reports of apparently similar events involving Sprinter vans in the US.

MBAG is not aware of any cases of death or injury related to this defect.

 


4 Affected Products

Vehicles

MAKE MODEL YEAR
FREIGHTLINER SPRINTER (VS30) 2019-2020
MERCEDES-BENZ SPRINTER (VS30) 2019-2020

 


4 Associated Documents

Recall Acknowledgement

RCAK-23V100-6613.pdf 704.765KB

RCAK-23V100-6613

 


Recall 573 Report – February 24, 2023

RCLRPT-23V100-2636.PDF 215.464KB

RCLRPT-23V100-2636

 


Defect Notice 573 Report

RCLRPT-23V100-2744.PDF 215.344KB

RCLRPT-23V100-2744

 


Recall 573 Report – March 2, 2023

RCLRPT-23V100-1359.PDF 215.7KB

RCLRPT-23V100-1359

 


Latest Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=23V100&docType=RCL

 


 

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Last update on 2023-02-28 / Affiliate links / Images from Amazon Product Advertising API

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