What are the most common Mercedes-Benz C-Class problems?
According to Au7o's analysis of 0+ owner reports, the 2025-2025 Mercedes-Benz C-Class has 5 documented issues. The most frequently reported are: 48V Mild-Hybrid / Integrated Starter-Generator Failure Causing No-Start and Power Loss, Front Seat Occupant Classification / Passenger Airbag Warning Faults, MBUX / Instrument Cluster Black Screen, Rebooting, or No Rear Camera Image. Of these, 3 are rated critical and should be addressed promptly.
Is the Mercedes-Benz C-Class reliable?
The 2025-2025 Mercedes-Benz C-Class has 5 known issues documented across 0+ owner reports. 3 issues are rated critical: 48V Mild-Hybrid / Integrated Starter-Generator Failure Causing No-Start and Power Loss and Front Seat Occupant Classification / Passenger Airbag Warning Faults and MBUX / Instrument Cluster Black Screen, Rebooting, or No Rear Camera Image. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Mercedes-Benz C-Class problems?
Repair costs for known Mercedes-Benz C-Class issues range from $0 to $6,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, 48V Mild-Hybrid / Integrated Starter-Generator Failure Causing No-Start and Power Loss, typically costs $500-$6,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2022-2025 Mercedes-Benz C-Class 48V Mild-Hybrid / Integrated Starter-Generator Failure Causing No-Start and Power Loss?
The W206 C-Class uses a 48V mild-hybrid system with an integrated starter-generator (ISG), and owners have reported no-start conditions, repeated warning messages, charging-system faults, and sudden reduced-power events tied to the 48V system. Mercedes has issued service informat… Repairs typically run $500-$6,000. Severity: high.
What is the 2022-2025 Mercedes-Benz C-Class Front Seat Occupant Classification / Passenger Airbag Warning Faults?
Multiple W206 owners have reported passenger restraint warnings, inoperative passenger airbag indicators, and seat-related fault messages shortly after purchase. These complaints align with Mercedes service actions and owner reports involving seat occupancy detection mats/sensors… Repairs typically run $300-$2,500. Severity: high.
What is the 2022-2025 Mercedes-Benz C-Class MBUX / Instrument Cluster Black Screen, Rebooting, or No Rear Camera Image?
Owners of the W206 C-Class have reported intermittent or persistent failures of the central MBUX display and digital instrument cluster, including black screens, repeated rebooting, frozen infotainment, and loss of the rear-view camera image. This is well documented through NHTSA… Repairs typically run $0-$2,500. Severity: high.
What is the 2022-2025 Mercedes-Benz C-Class Driver Assistance Sensor Misalignment Causing 'Inoperative' Warnings and Disabled Features?
Owners of 2022-2025 C-Class cars frequently report sudden warnings that Active Brake Assist, Distronic, lane-keeping, blind-spot monitoring, or parking sensors are inoperative. On the W206, these faults are often tied to radar/camera calibration sensitivity, software issues, or s… Repairs typically run $150-$2,200. Severity: medium.
What is the 2022-2025 Mercedes-Benz C-Class Premature Front Brake Squeal, Judder, and Rotor/Pads Replacement?
A recurring owner complaint on the current C-Class is noisy front brakes, vibration under braking, and early rotor/pad replacement despite relatively low mileage. Reports on owner forums and complaint databases describe squeal when cold or at low speed, as well as pulsation or st… Repairs typically run $250-$1,400. Severity: medium.
