NHTSA campaign 21V406000 · Manufacturer campaign 2021060010
Mercedes Benz Recall 21V-406: Improperly Mounted Rear Headrests
NHTSA recall 21V406000 (Manufacturer campaign 2021060010) was reported by Mercedes-Benz USA, LLC on May 28, 2021, with 218 vehicles potentially affected (per NHTSA). NHTSA's record lists the Mercedes Benz AMG C43, Mercedes Benz AMG C63, Mercedes Benz AMG C63 S and more for the 2021 model year. Owners were notified on July 16, 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 21V406000 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
- 21V406000 (also written 21V-406 or 21V406)
- Filed by
- Mercedes-Benz USA, LLC
- Manufacturer campaign number
- 2021060010
- Report received
- Potentially affected
- 218 vehicles (per NHTSA)
- Component
- Seats — Mid/Rear Assembly — Head Restraint
- Owners notified
Repair completion: 99.08% (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 21V406000. 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.
NHTSA's recall notice
As NHTSA's recall record states it for campaign 21V406000.
Defect description
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 C300 Cabriolet, C43 AMG Cabriolet, C63 AMG Cabriolet, C63 AMG S Cabriolet, E450 Cabriolet, and E53 AMG Cabriolet vehicles. The rear headrests may be incorrectly mounted to the seatbacks.
Safety consequence
Incorrectly mounted headrests could move or detach from the seat during a crash, increasing the risk of injury.
Manufacturer remedy
Dealers will inspect the rear seatback guide bushings and replace them if necessary, free of charge. Owner notification letters were mailed July 16, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021060010.
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.
Sources
Official NHTSA notice for recall 21V406000
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.