2021 Mercedes-Benz CLA-Class problems
Light NHTSA footprint — 5 owner complaints. Either a clean record or thin data; we'll show what's there.
The 2021 Mercedes-Benz CLA-Class has 5 NHTSA owner complaints on file (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation.
| Model year | Owner complaints | Recalls |
|---|---|---|
| 2018 CLA-Class | 44 | 0 |
| 2019 CLA-Class | 51 | 0 |
| 2020 CLA-Class | 23 | 0 |
| 2021 CLA-Class (this page) | 5 | 0 |
| 2022 CLA-Class | 4 | 0 |
| 2023 CLA-Class | 6 | 0 |
Limited NHTSA data — only 5 complaints on file. The score reflects what's reported, but a small sample skews easily.
Only 5 NHTSA complaints on file — too few for a confident reliability call. Could be a clean record or just thin data.
Our read of the federal NHTSA complaint and recall record for this exact year and model — not a substitute for a pre-purchase inspection. How we score.
What owners are saying recent NHTSA-filed complaints · verbatim
Our car has lost power to accelerate on 4 occasions on the highway. The first instance was in October of 2023, the second instance was in November of 2024 (and was brought immediately to the dealership and they said the fix wasn't available yet), the third instance was in March…
On Monday 02/14/2022, after 2-3 minutes driving towards work, at about 25-30mph speed, the front right ball joint broke on the vehicle putting me in danger of losing my life. Due to this ball joint failure, the right front wheel disassembled from the vehicle and it slid-crashed…
the seal around my driver side rear light is not sealed correctly there is water precipitation in my lamp
Date of occurrence: 03/05/2024 Subject: Formal Claim Regarding Traffic Safety Issue with 2021 Mercedes Benz CLA 250 I am writing to formally submit a claim regarding a recent traffic safety incident involving my 2021 Mercedes Benz CLA 250. While driving to my destination, I…
Common questions
Is the 2021 Mercedes-Benz CLA-Class reliable?
Limited NHTSA data. Only 5 owner complaints have been filed for the 2021 Mercedes-Benz CLA-Class, which is not enough for a meaningful reliability score. Active recalls (if any) are listed on this page and remain authoritative — those are verified defects regardless of complaint volume. For a confident reliability read we look for at least 10 owner complaints in the federal database.
Should you avoid the 2021 Mercedes-Benz CLA-Class?
Only 5 NHTSA complaints on file — too few for a confident reliability call. Could be a clean record or just thin data. We don't issue a buy/avoid verdict on the 2021 Mercedes-Benz CLA-Class without a meaningful complaint sample — doing so off a handful of filings would be guesswork.
What should I check before buying a used 2021 Mercedes-Benz CLA-Class?
There isn't enough NHTSA complaint data on the 2021 Mercedes-Benz CLA-Class to flag a standout failure pattern. Run the VIN for open recalls — those are free to fix regardless of warranty — get a standard pre-purchase inspection, and ask the seller for service records.
Is the 2021 Mercedes-Benz CLA-Class a good used car to buy?
Hard to say from federal data alone — only 5 owner complaints have been filed. Lean on the recall list above, a pre-purchase inspection, and a vehicle-history report on the specific VIN. Our data tells you what the model is known for; a history report tells you what that exact car has been through.
What's the most common problem on the 2021 Mercedes-Benz CLA-Class?
No problem area has crossed our reporting threshold yet, which is a good sign for this vehicle.
What's the most expensive thing that goes wrong?
Major repair items haven't been flagged often enough on this vehicle to single one out.
How do I check if my Mercedes-Benz CLA-Class has open recalls?
Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.
Is an extended warranty worth it on a 2021 Mercedes-Benz CLA-Class?
Hard to say from NHTSA data alone with only 5 complaints on file. A quality service contract runs $1,800–3,500 over 3 years. The decision comes down to your specific situation: vehicle cost, miles on it, how long you plan to keep it, and whether you can absorb a $3K–$8K repair without straining cashflow. With limited public data on this vehicle, lean on the recall list above and check owner forums before committing.