NHTSA campaign 21V124000
Mercedes Benz Recall 21V-124: Spark Plugs May Cause Engine Damage
NHTSA recall 21V124000 was reported by Mercedes-Benz USA, LLC on February 26, 2021, with 7 vehicles potentially affected (per NHTSA). NHTSA's record lists the Mercedes Benz AMG CLA45 for the 2020 model year. Owners were notified on April 14, 2021, per NHTSA.
Updated daily from NHTSA's recall files
Is my vehicle included?
This page lists, by model year, the vehicles NHTSA's recall record names for campaign 21V124000 in the model years try.vin imports (1995 and later); NHTSA's own record can list more. A model year on the list doesn't mean every vehicle of that year is included, and some may already have been repaired.
To see whether a specific vehicle is included and still needs the repair, enter its VIN at nhtsa.gov/recalls.
Mercedes Benz VIN check: decode a VIN to see its year, make and model.
Key facts
- NHTSA campaign
- 21V124000 (also written 21V-124 or 21V124)
- Filed by
- Mercedes-Benz USA, LLC
- Report received
- Potentially affected
- 7 vehicles (per NHTSA)
- Component
- Electrical System — Ignition — Coil — Spark Plugs
- Owners notified
Repair completion: 100% (latest rate the manufacturer reported to NHTSA; dataset updated October 21, 2026)
NHTSA cautions against comparing completion rates across recalls or manufacturers. How try.vin reads them.
Vehicles listed for this recall
NHTSA's recall record lists these vehicles for recall 21V124000. try.vin imports model years 1995 and later, so NHTSA's own list can be longer. Model years with a try.vin recall page link to it. Build dates are NHTSA's range for a model year (per NHTSA); a vehicle built in that range is not necessarily included.
Mercedes Benz
Mercedes Benz AMG CLA45
NHTSA's recall notice
As NHTSA's recall record states it for campaign 21V124000.
Defect description
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 consequence
Engine damage may result in an engine stall, increasing the risk of a crash.
Manufacturer 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.
Sources
Official NHTSA notice for recall 21V124000
Campaign details come from NHTSA's recall files, which try.vin imports once a day. The plain-language subject and the completion rate come from the U.S. Department of Transportation's Recalls Data dataset. How try.vin reads recall data.