Is the 2021 Mercedes-Benz Cla reliable?

The 2021 Mercedes-Benz Cla scores 78/100 (C+) on OwnerKeep's reliability index, which places it in the moderate risk category. See the full report for the specific strengths and failure points.

What are the common problems with the 2021 Mercedes-Benz Cla?

See the Common Issues section above for the top failure areas reported by real owners, with typical mileage ranges where problems start showing up.

How much does it cost to maintain a 2021 Mercedes-Benz Cla?

Expected maintenance costs depend heavily on age, mileage and how well the vehicle was kept up. Run the full report for a year-by-year cost outlook.

What should I check before buying a 2021 Mercedes-Benz Cla?

Focus on the top risk areas flagged in this report, review service history, and verify the vehicle is not inside one of the mileage danger zones listed above.

HomeVehicles

Vehicles Compare Blog Get Report

Reliability AnalysisBased on known issue patterns, repair cost data, and ownership trends · How we score

2021 Mercedes-Benz Cla Reliability ReportKeepScore 78/100 · top failure points · buy or avoid

78/ 100

KeepScore

MODERATE RISK

Grade: C+

A stylish, tech-forward compact luxury sedan that demands a budget for its advanced systems and premium service.

Full system breakdown + what I would do

Quick Facts · 2021 Mercedes-Benz Cla

Scores 5 points below the strongest nearby year — the 2019 Mercedes-Benz Cla earns a 83.
The system most likely to surface first: electrical / infotainment (mbux) (moderate severity).
No active NHTSA safety recalls on record — a clean recall slate for the 2021 model year.

2021 Mercedes-Benz Cla: Buy or Avoid?

The 2021 Mercedes-Benz CLA offers compelling style and technology in an entry-level luxury package. While its core mechanicals are generally robust, you must be prepared for higher-than-average electrical gremlins and premium repair costs when issues inevitably arise. This isn't a 'set it and forget it' vehicle; proactive maintenance and a budget for potential tech-related fixes are essential for a satisfying ownership experience.

Biggest Strengths

Generally robust engine (M260)
Strong structural integrity and safety features
Modern, user-friendly MBUX infotainment (when functioning correctly)

2021 Mercedes-Benz Cla — Known Trouble Spots

The systems that break first on the 2021 Mercedes-Benz Cla. Mileage windows, repair costs, and fix-before-you-buy notes are in the full report.

Electrical / Infotainment (MBUX)moderate

Transmission (7G/8G-DCT)moderate

Engine Oil Leaks & Auxiliary Batterymoderate

Typical mileage, cost ranges, and the exact what-to-check list are in the full report.

Safety Recalls on the 2021 Mercedes-Benz Cla

No active NHTSA safety recalls on file for the 2021 Mercedes-Benz Cla. Always verify with your VIN atnhtsa.gov.

What breaks on the 2021 Mercedes-Benz Cla?

Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.

OwnerKeep Passport · $499 · one-time

Just bought a 2021 Mercedes-Benz Cla? Keep it that way.

Snap a receipt — AI logs it. Build an OwnerScore. Sell with a buyer-ready Passport dossier.

Mercedes-Benz Cla — Year-by-Year Comparison

Compare KeepScores across nearby years of the Mercedes-Benz Cla. Click any year for its full report.

All Mercedes-Benz Cla years ranked →Mercedes-Benz Cla years to avoid →Mercedes-Benz Cla common problems →

Competing 2021s Worth a Look

Similar class, similar year range — ranked by KeepScore.

2019 ChryslerPacifica

82/100

Relevant Products for Your 2021 Mercedes-Benz Cla

Parts and accessories matched to your 2021 Mercedes-Benz Cla

As an Amazon Associate I earn from qualifying purchases.

Frequently Asked Questions

Full Report