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Mercedes-Benz AMG SL63 Recall 23V676: Loose wiring can cause power loss or engine bay fire

NHTSA campaign 23V676, reported October 6, 2023, 5,326 vehicles potentially affected.

What this recall means for you

The wiring harness that serves the starter and alternator may not be secured properly. Over time it can short circuit, causing a loss of drive power, or it can overheat, which raises the risk of a fire.

A sudden loss of drive power can increase the risk of a crash, and an overheated harness can increase the risk of a fire. Owners should treat this recall seriously and not ignore the notice.

The repair is free. Dealers will secure the starter and alternator wiring harness at no charge. Owner notification letters were mailed November 20, 2023, and you can call Mercedes-Benz USA customer service at 1-800-367-6372, referencing recall number 2023100014. You can also check your vehicle identification number (VIN) for any 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 23V676Mercedes-Benz USA, LLC
Component
ELECTRICAL SYSTEM:WIRING
Problem
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2022-2023 AMG SL55 and AMG SL63 vehicles. The electrical wiring harness for the starter and alternator may not be secured properly, which can result in a short circuit and a loss of drive power or cause the harness to overheat.
Risk
A loss of drive power can increase the risk of a crash, and an overheated electrical wiring harness can increase the risk of a fire.
Remedy
Dealers will secure the electrical wiring harness for the starter and alternator, free of charge. Owner notification letters were mailed November 20, 2023. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2023100014.
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 SL5520222023
Mercedes-Benz AMG SL6320222023