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NHTSA Recall 21V124000: Spark plugs (electrical system)

Mercedes-Benz USA, LLC reported this safety recall to NHTSA on , covering an estimated 7 vehicles. It affects 2020 Mercedes-Benz AMG CLA45.

7
vehicles potentially affected
1
model affected
2021
owners notified (April 14)
NHTSA campaign21V124000
ComponentELECTRICAL SYSTEM › IGNITION › COIL › SPARK PLUGS
Report receivedFebruary 26, 2021
Owner notificationApril 14, 2021
Initiated byManufacturer

Defect

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2020 CLA45 AMG vehicles equipped with 4-cylinder gasoline engines. Incorrect spark plugs may have been installed, which could come apart over time and cause engine damage.

Safety risk

Engine damage may result in an engine stall, increasing the risk of a crash.

Remedy

MBUSA will notify owners, and dealers will replace the spark plugs, free of charge. The recall began April 14, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.

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.safercar.gov.

Vehicles covered by recall 21V124000

Make and modelModel years
Mercedes-Benz AMG CLA452020

Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.