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Mercedes-Benz C 300 Recall 23V463: Loose Ground Wiring Can Overheat and Cause Fire

NHTSA campaign 23V463, reported June 30, 2023, 1,558 vehicles potentially affected.

What this recall means for you

Some electrical wiring harness ground connections may not be secured properly. Over time, this can allow the wiring harness to overheat.

An overheated wiring harness can increase the risk of a fire. Owners should take this seriously and have the recall addressed promptly.

Authorized Mercedes-Benz dealers will inspect and repair the ground connections for the electrical wiring harness, as necessary, at no cost to you. Owner notification letters were mailed August 11, 2023. You can contact Mercedes-Benz USA customer service at 1-800-367-6373, and you should check your VIN for open recalls.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 23V463Mercedes-Benz USA, LLC
Component
ELECTRICAL SYSTEM:WIRING
Problem
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2022-2023 C300 and 2023 AMG C43 vehicles. The ground connections for the electrical wiring harness may not be secured properly, which can result in the electrical wiring harness overheating.
Risk
An overheated wiring harness can increase the risk of a fire.
Remedy
Dealers will inspect and repair the ground connections for the electrical wiring harness, as necessary, free of charge. Owner notification letters were mailed August 11, 2023. Owners may contact MBUSA customer service at 1-800-367-6373. MBUSA's numbers for this recall are 2023070016, 2023070017, 2023070018, and 2024070016.
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.

Affected vehicles

Mercedes-Benz AMG C432023
Mercedes-Benz C 30020222023