2021 Mercedes-Benz C-Class Safety Report
2021 Mercedes-Benz C-Class Safety Analysis
Safety Decision Cockpit for the 2021 Mercedes-Benz C-Class
This page is the hub for deciding what to inspect next on the 2021 Mercedes-Benz C-Class. It connects recall campaigns, owner complaint patterns, service bulletins, sibling model years, component issue hubs, and the model buying guide so a shopper or owner can move from a single report into the wider safety graph.
| Signal | Value | What to inspect next |
|---|---|---|
| Recall burden | Low (0) | Review campaign numbers, affected components, and dealer remedies below. |
| Owner complaints | Low (13) | Scan complaint narratives for recurring symptoms, mileage, crashes, fires, injuries, and dates. |
| Crash and fire reports | 0 | Treat any crash, fire, injury, or fatality-linked pattern as a priority pre-purchase inspection item. |
| Primary component hub | Engine | Compare engine issues across vehicles. |
2021 Mercedes-Benz C-Class Complaint Theme Map
Complaint counts become more useful when they are grouped into inspection themes. For the 2021 Mercedes-Benz C-Class, these are the component areas with the clearest NHTSA complaint signals. Use each link to jump from this single vehicle into broader component hubs and make-specific issue pages.
Engine
5 owner complaints mention this component in the current safety profile.
All Engine issues Mercedes-Benz onlyFuel/Propulsion System
2 owner complaints mention this component in the current safety profile.
All Fuel/Propulsion System issues Mercedes-Benz onlyVisibility
1 owner complaint mention this component in the current safety profile.
All Visibility issues Mercedes-Benz onlySuspension,Power Train,Air Bags
1 owner complaint mention this component in the current safety profile.
All Suspension,Power Train,Air Bags issues Mercedes-Benz onlyPower Train,Engine
1 owner complaint mention this component in the current safety profile.
All Power Train,Engine issues Mercedes-Benz onlyBack Over Prevention
1 owner complaint mention this component in the current safety profile.
All Back Over Prevention issues Mercedes-Benz onlyAI Safety Analysis for the 2021 Mercedes-Benz C-Class
Reliability Score
The 2021 Mercedes-Benz C-Class receives a reliability score of 87 out of 100 based on analysis of NHTSA complaint data, recall history, crash reports, and safety ratings. This indicates above-average reliability relative to comparable vehicles.
Known Issues for the 2021 Mercedes-Benz C-Class
The following issues have been identified from NHTSA complaint data and owner reports for the 2021 Mercedes-Benz C-Class:
| Issue | Severity | Frequency | Typical Mileage |
|---|---|---|---|
| Engine Failure A cylinder head failure occurred at 44,000 miles due to manufacturing defects, affecting engine reliability. |
High | Rare | 44k-45k miles |
| Airbag Deployment Airbags deployed unexpectedly during a driving incident, suggesting potential issues with the airbag system. |
Medium | Common | 30k-40k miles |
Common Problems Reported by Owners
Based on NHTSA complaint data, the following components account for the majority of reported issues with the 2021 Mercedes-Benz C-Class:
Engine issues, including sudden stalling and cylinder head failure, are common.
Airbags have deployed unexpectedly, indicating potential issues with the airbag system.
Frequently Asked Questions About the 2021 Mercedes-Benz C-Class
Has the 2021 MERCEDES-BENZ C-CLASS been recalled?
No, the 2021 MERCEDES-BENZ C-CLASS has no recalls on record with NHTSA as of our latest data update.
How many complaints does the 2021 MERCEDES-BENZ C-CLASS have?
The 2021 MERCEDES-BENZ C-CLASS has 13 complaints filed with NHTSA. None of the complaints involved crashes. No injuries or deaths have been reported.
What is the safety rating for the 2021 MERCEDES-BENZ C-CLASS?
The 2021 MERCEDES-BENZ C-CLASS does not have an NHTSA safety rating on file. This can happen for newer model years, specialty vehicles, or models that have not been crash-tested.
What are the most common problems with the 2021 MERCEDES-BENZ C-CLASS?
The most commonly reported problems with the 2021 MERCEDES-BENZ C-CLASS involve engine (5 complaints), fuel/propulsion system (2 complaints), visibility (1 complaints). Other affected components include suspension,power train,air bags, power train,engine, back over prevention.
How many crash reports does the 2021 MERCEDES-BENZ C-CLASS have?
There are no crash reports associated with the 2021 MERCEDES-BENZ C-CLASS in the NHTSA database.
How many fire reports does the 2021 MERCEDES-BENZ C-CLASS have?
There are no fire reports for the 2021 MERCEDES-BENZ C-CLASS in the NHTSA database.
Are there any deaths reported for the 2021 MERCEDES-BENZ C-CLASS?
No deaths have been reported in NHTSA complaints for the 2021 MERCEDES-BENZ C-CLASS.
How many injuries are reported for the 2021 MERCEDES-BENZ C-CLASS?
No injuries have been reported in NHTSA complaints for the 2021 MERCEDES-BENZ C-CLASS.
Should I buy a 2021 MERCEDES-BENZ C-CLASS?
Based on NHTSA data, the 2021 MERCEDES-BENZ C-CLASS is research thoroughly before purchasing. It has 13 complaints, 0 recalls. Always have a pre-purchase inspection done by a qualified mechanic.
What components fail most on the 2021 MERCEDES-BENZ C-CLASS?
The components with the most failures on the 2021 MERCEDES-BENZ C-CLASS are: 1. ENGINE (5 complaints), 2. FUEL/PROPULSION SYSTEM (2 complaints), 3. VISIBILITY (1 complaints), 4. SUSPENSION,POWER TRAIN,AIR BAGS (1 complaints), 5. POWER TRAIN,ENGINE (1 complaints). ENGINE is the single most-reported problem area with 5 complaints.
What should I know before buying a 2021 MERCEDES-BENZ C-CLASS?
Be cautious of engine reliability and airbag system performance, especially after 30,000 miles. The 2021 MERCEDES-BENZ C-CLASS has 13 NHTSA complaints and 0 recalls on record.
How reliable is the 2021 MERCEDES-BENZ C-CLASS?
The 2021 MERCEDES-BENZ C-CLASS receives a reliability score of 87/100, indicating above-average reliability. This is based on 13 owner complaints, 0 recalls, and 0 crash/fire reports in the NHTSA database. Key known issues include Engine Failure and Airbag Deployment.
What are the known issues with the 2021 MERCEDES-BENZ C-CLASS?
Known issues with the 2021 MERCEDES-BENZ C-CLASS include: Engine Failure, Airbag Deployment. These are based on patterns found across 13 NHTSA complaints.
What are the common engine issues in the 2021 Mercedes-Benz C-Class?
Common issues include sudden stalling and cylinder head failures due to manufacturing defects.
Are there any reported issues with the airbag system?
Yes, airbags have deployed unexpectedly during driving, indicating potential system issues.
What should I do if I experience sudden engine stalling?
Have the vehicle inspected by a professional to diagnose and address the issue.
Buyer Advice
Our recommendation: Be cautious of engine reliability and airbag system performance, especially after 30,000 miles.
NHTSA Data Summary for 2021 Mercedes-Benz C-Class
This safety report is based on a comprehensive analysis of data from the National Highway Traffic Safety Administration (NHTSA) for the 2021 Mercedes-Benz C-Class. The data includes 13 consumer complaints filed by vehicle owners, 0 manufacturer-initiated safety recalls, and safety rating assessments associated with this vehicle.
All data presented in this report is sourced from public NHTSA databases. Our AI analysis identifies patterns across complaint narratives, correlates them with recall history, and produces the safety assessment above. This analysis is updated as new complaints and recalls are filed with the NHTSA.
Consumers are encouraged to report vehicle safety problems to the NHTSA at nhtsa.gov. If your vehicle is subject to a recall, contact your dealer to schedule the free repair.
Disclaimer: This analysis is AI-generated from NHTSA public data and does not constitute professional automotive or safety advice. Always verify recall status at NHTSA.gov and consult a qualified mechanic.
Analysis last updated: 2026-05-16