2021 Mercedes-Benz A 220, 2021 Mercedes-Benz AMG A35, 2021 Mercedes-Benz CLA 250 Recall: Child seat anchoring system (ISOFIX) may be missing the right-side…
NHTSA campaign 21V034000 · Child Seat · filed Jan 29, 2021 · verified Jul 30, 2026
The defect
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 A220, A35 AMG, and CLA250 vehicles. The child seat anchoring system (ISOFIX) may be missing the right-side anchoring bar from the ISOFIX bracket on the right-rear seat.
The risk
If the anchoring bar is missing from the ISOFIX bracket, the child restraint cannot be properly secured to the seat using the ISOFIX securing system, increasing the risk of injury for a child in that seat.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
MBUSA will notify owners, and dealers will inspect the right-rear ISOFIX bracket and replace the bracket, if necessary, free of charge. The recall began March 16, 2021. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2021020004.
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.
Affected vehicles
| Make | Model | Model years |
|---|---|---|
| Mercedes-Benz | A 220 | 2021 |
| Mercedes-Benz | AMG A35 | 2021 |
| Mercedes-Benz | CLA 250 | 2021 |
Related recalls
More Mercedes-Benz A 220 recalls
- 2019–2020 Mercedes-Benz A 220 and 6 other models — Vehicles may not be equipped with an inspection gauge to…
- 2022 Mercedes-Benz A 220 and 2 other models — Headlights may be incorrectly adjusted
- 2019–2021 Mercedes-Benz A 220 and 58 other models — Please refer to MBUSA's recall report for specific vehicle…
- 2019–2020 Mercedes-Benz A 220 and 29 other models — Please refer to MBUSA's recall report for specific vehicle…
- 2019–2020 Mercedes-Benz A 220 and 2 other models — Integral carrier that supports the front axle may corrode…
Other campaigns involving Mercedes-Benz vehicles
- 2026 Mercedes-Benz AMG GLE53 4MATIC+ and 13 other models — Bolts for the rear seat belts may not be tightened properly
- 2026 Mercedes-Benz CLA 250+ (ev) and 1 other model — Front passenger seat belt retractor may have been…
- 2025–2026 Mercedes-Benz AMG C43 4MATIC and 34 other models — Infotainment control unit may reset while the vehicle is in…
All Mercedes-Benz A 220 recalls → · All Mercedes-Benz recalls →
Source: NHTSA recall database, campaign 21V034000 (manufacturer number 2021020004). Data last verified Jul 30, 2026.