2021 MERCEDES-BENZ C-Class
Recalls, Specs & Safety Report
This 2021 model shows good reliability, primarily driven by a below-average recall rate for the MERCEDES-BENZ brand.
Why This Matters
A clean recall record is a positive signal for both safety and ownership costs. Vehicles with no known defects typically qualify for lower insurance premiums and face fewer unexpected repair expenses.
When negotiating insurance rates, a documented history of zero manufacturer recalls can support your case for preferred pricing.
Expert Analysis
- Recall Trend:No Change in recalls
- Primary Risk Area:Check Engine Light
- Vs Brand: Better than avg (0.4)Summary:
Safety & Reliability Score
Score Breakdown
Technical Specifications
Key specifications for the 2021 MERCEDES-BENZ C-Class
Safety History Timeline
Consumer Complaint Analysis
Most Reported Issue
Complaint Trend
Safety Incidents
Complaint Severity Distribution
Breakdown of 11 consumer complaints by severity level.
Mileage Failure Analysis
Based on consumer reports, issues for this vehicle tend to peak around the 40k-60k mileage range. The average reported failure mileage is 51,770 miles.
No Recalls Found
Zero Defect Certification
2021 MERCEDES-BENZ C-Class
Exceptional News! As of January 2026, the 2021 MERCEDES-BENZ C-Class has recorded 0 safety recalls.
Compared to other 2021 models which average multiple safety campaigns, this vehicle's clean sheet is a testament to its engineering integrity.
🛡️ Proactive Safety Maintenance Guide
Even with a perfect recall record, regular maintenance safeguards your vehicle's reliability. Our experts recommend monitoring these systems:
No active investigations for this vehicle.
Consumer-reported issues submitted to NHTSA for 2021 C-Class.
Common Reported SymptomsAI Analysis
The contact owns a 2021 Mercedes-Benz C300. The contact stated that while driving at an undisclosed speed, the vehicle stalled and failed to exceed 30 MPH, with the check engine warning light illuminated. The vehicle did not require a restart. The contact also stated that while stopped at a traffic light, the vehicle was shaking abnormally. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that there was a misfire in cylinder #2. The contact was informed that the cylinder head needed to be replaced. The vehicle was not repaired. The vehicle was then taken to the dealer, where the same diagnostic information was provided, and the contact was informed that the cylinder head needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 86,078.
My car had a coolant leak last year a hose broke and I have a 2021. My son’s mercedes sis the same thing on 11/23/2025. I have researched ma y others with this same issue. There should be a recall on that hose or whatever the problem Is.
2021 Mercedes-Benz C300 with M254 2.0L turbo engine experienced sudden cylinder head failure at 44,000 miles due to manufacturing porosity in the cylinder head and camshaft bore scoring. Dealer confirmed defect. This is a known, recurring issue on 2021–2023 M254 engines with multiple documented failures under 50k miles. Sudden loss of compression and misfires create a safety risk of engine failure or fire while driving. TSB NUMBER LI07.16-P-074000 (February 2023, updated multiple times). This is a known production/early break-in issue with the M254 engine, not the result of owner misuse or delayed maintenance.
While driving car on Sunday 10/5, it suddenly failed to respond to gas pedal pressure. The car stopped accelerating and rather slowed to 15 MPH, almost causing a car from behind to hit me in the rear side.
My C300 only had about 42,000 miles and was less than 5 years old. Just after the factory warranty expired, the engine was running rough and hot, and "check engine" light illuminated. My local garage quickly diagnosed the problem as a failed cylinder head, stated that it is common with Mercedes 4-cylinder engines from about 2017, and said Mercedes may cover it since it is a "known problem" and shouldn't happen with that mileage. I was charged $7,860 by my local Mercedes dealer, and despite multiple contacts with MercedezUSA, they refuse to acknowledge this is a problem or cover the cost, although in on-line the forums some people were arbitrarily reimbursed. There should be a recall to check for this obvious defect and should be covered. This defect can cause sudden engine failure and is a significant hazard to the driving public.
Cylinder head needed to be replaced on the M264 engine at 35,000 miles. The replacement part is also known to be defective for the same reasons. This is a common defect known to the manufacturer and they have not issued a recall. My concern is that of a roadside breakdown that would endanger my wife and myself. Thank you for your consideration.
Rearview camera not displaying any image when transmission is put in reverse.
the check Engine light fault code P012D12 The pressure sensor upstream of the turbocharger had a short circuit to positive. Found Kink wire on upstream pressure sensor. A short circuit to positive. Electrical Wire replaced.
First day leasing the vehicle within 6 hours lights malfunction and malfunction warning on dash to seek workshop, vehicle was taken for inspection to original dealer (Mercedes Benz of Bakersfield). During inspection I added additional concerning complaints about passenger door not closing correctly/wind noise seeping through when closed, and hood not closing promptly. One month into leasing vehicle passenger window malfunction, took for inspection and repair to original dealer (MBofBakersfield). Concerned with caution for me, my family, and friends when in that vehicle for giving faulty signs so early. One year into leasing vehicle check coolant warning on dash, took for inspection to original dealer. I am now more concerned as it went form electrical to coolant components losing coolant with no reasoning from original dealer service other then a top off. Vehicle drive is rough. 1 year and 6 months into leasing vehicle, again check coolant warning on dash. Took in for inspection, gave no reasoning from original dealer service dept, other then a top off done. Vehicle drives rough. While driving 70mph, a vehicle behind was approaching quick when I went to excel to merge vehicle seemed to be slipping in gear/slow down. No warning lamps on, Quickly decided/managed to merged to next lane so vehicle behind didn’t hit us as we were slowing down With 2 children in the back seat. decided to exit to nearest exit to pull off as it felt unsafe to drive, as exiting and slowing down vehicle began to shake, knock, and make loud bangs. Managed to pull over, and check dash for messages for any type of warnings. No warning lamps, but many symptoms of a faulty unsafe vehicle. Had vehicle towed to original dealer service for diagnosis and report the unsafety incident that occurred with absolutely no warning lamps. Inspection lead to repair of engine but nothing done about no warning lamps/electrical system
Piston Connecting Rod broke and left the engine making holes in both sides of the block; Mercedes Benz rejected any responsibility because the car has a branded title. Currently a new engine (brand new) is being installed, my concern is that what will happen if the new engine has the same defective part and blew up again.
Frequently Asked Questions
Are there any recalls for the 2021 MERCEDES-BENZ C-Class?
No, the 2021 MERCEDES-BENZ C-Class currently has no recorded recalls from NHTSA.
Is the 2021 MERCEDES-BENZ C-Class safe to drive?
The 2021 MERCEDES-BENZ C-Class has no active recalls, which is a positive safety indicator. Always maintain regular service intervals for optimal safety.
Where can I check if my 2021 MERCEDES-BENZ C-Class has open recalls?
You can check for open recalls by visiting NHTSA.gov and entering your Vehicle Identification Number (VIN), or by contacting your local MERCEDES-BENZ dealer.
Year-over-Year Context
Compared to earlier years, the 2021 model shows stable reliability patterns. No meaningful structural change detected in recall frequency between adjacent model years.
What This Means for You
Both current owners and prospective buyers benefit from reviewing this safety analysis before making decisions.
If you're unsure, we recommend starting with a VIN check or consulting a certified mechanic.
If You Own This Vehicle
- No active recalls are recorded, but maintain regular service intervals and report any unusual symptoms to NHTSA.
- Consider setting up VIN-specific alerts to receive notification of future recalls.
If You're Buying Used
- Request the VIN before purchase and verify recall status at NHTSA.gov.
- This model year shows favorable reliability metrics compared to alternatives.
This page is designed to help you decide, not alarm you.