Mercedes-Benz A220, Mercedes-Benz Amg A35, Mercedes-Benz Cla250, model year 2021. Filed by Mercedes-Benz USA, LLC and reported to NHTSA on 29 January 2021. 231 vehicles potentially affected.
What the notice says 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.
Is your vehicle included? Check with your VIN at NHTSA, or ask a dealer. This page is an independent copy of the notice, kept so you can see what changed after it was published. It is not the authority, and the authority’s own text is the one to act on.
Mercedes-Benz's own number for this recall: 2021020004. That is the number on the owner letter and on the dealer paperwork. 21V034 is the number NHTSA gave the same campaign, and the number this page is filed under. They are one recall, written two ways.
What owners ask about this recall
- Which vehicles does recall 21V034 cover?
- Mercedes-Benz A220, Mercedes-Benz AMG A35, Mercedes-Benz Cla250, model year 2021.
- What is wrong with them?
- 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.
- What can happen if it is not put right?
- 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.
- Is there a fix yet?
- Yes, and it is free. 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.
- What should I do now?
- Check your own vehicle by its VIN with NHTSA, which is the record to act on. Mercedes-Benz calls this recall 2021020004, which is the number on the owner letter and the dealer paperwork.
Answered from the register this site holds. NHTSA is the record to act on.
What the authority says can happen if this is not fixed: “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.”
affected
in the notice
caught
| Campaign | 21V034 |
|---|---|
| Filed by | Mercedes-Benz USA, LLC |
| System at fault | Child Seat |
| Reported to NHTSA | 29 January 2021 |
| Model years | 2021-2021 |
| Vehicles named | MERCEDES-BENZ A220, MERCEDES-BENZ AMG A35, MERCEDES-BENZ CLA250 |
What the notice says today
The consequence
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.
The remedy
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.
What it said before
This campaign is in the register but not yet in the dated wording archive, so we cannot yet say whether its text has moved. It enters the archive on the next pass.
This is one of 89 notices in the record whose component field names child seat. Across that group the median wait before owners were written to was 47 days.
Last checked . No change has been recorded in the wording.
The models named here, across their whole recall history
How to cite this record
Quoting the wording on this page means quoting a version, so the date belongs in the citation:
CarsMultiverse, recall 21V034, wording as read on 16 September 2026. https://carsmultiverse.com/recall/21v034/
The cross-border matches used on this site are deposited as a citable dataset: doi:10.5281/zenodo.22087136. The recall wording itself is published by the national authority named above and is theirs, not ours.
The recall record and its wording are published by the US National Highway Traffic Safety Administration and are US Government public domain. The dated archive, the comparison and any before-and-after above are CarsMultiverse. How fresh every engine behind this page is, is public on the status page. To check a specific vehicle, use NHTSA’s own VIN lookup.
The fingerprint of this notice
We take a SHA-256 of each of the three blocks of text the authority publishes and keep the first eight characters. As we last read campaign 21V034 on 23 August 2026, they were:
- Defect summary
a23813e9 - Consequence
e3742f7e - Remedy
0fabfac6
We first read this notice on 21 August 2026. It has not moved since. If it ever does, these characters will not match, and the change will be dated here.
The wording we hold for 21V034 · how the whole register is watched
This notice names one vehicle among several registers that have written about it. Every notice this site holds for the Mercedes-Benz AMG A35, in all seven, is kept on that vehicle's own page, with the newest in each.
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