2020 Mercedes-Benz C-Class - Electric Vehicle Guide
The 2020 Mercedes-Benz C-Class belongs to a Mercedes-Benz C-Class lineup that Know Your Ride tracks across 21 model years, from 1994 to 2025. It is an all-electric vehicle, so it skips the oil changes, spark plugs and exhaust-system service of a combustion C-Class entirely. The 2020 sits mid-run, with both earlier (1994) and later (2025) C-Class model years also documented.
The high-voltage battery is covered for 10 years or 100,000 miles, separate from the bumper-to-bumper warranty. Routine upkeep centers on tire rotation, DOT 4 brake fluid, MB 325.6 battery/cabin coolant, cabin air filters and brake service rather than engine oil. Know Your Ride lists 13 scheduled maintenance items for this vehicle, the earliest interval falling at 10,000 miles. Documented torque values include lug nut 96 ft-lb.
NHTSA complaints for this vehicle cluster around back over prevention (4), engine (4), unknown or other (4). A representative report reads: "Vehicle has ongoing and recurring electrical and engine-related defects that affect safe operation. The primary systems involved are the electrical system..."
Quick Specs
| Battery warranty | 10 yr / 100,000 mi |
| Tire size | 225/45R18 |
| Coolant | MB 325.6 |
Common Trouble Codes
- P0300 - Random/Multiple Cylinder Misfire Detected
- P0420 - Catalyst System Efficiency Below Threshold (Bank 1)
- P0171 - System too Lean (Bank 1)
- P0128 - Insufficient Coolant Temperature for Stable Operation
- P0442 - Evaporative Emission Control System Leak Detected (small leak)
- P0455 - Evaporative Emission Control System Leak Detected (gross leak)
- P0700 - Transmission Control System Malfunction
- P0301 - Cylinder 1 Misfire Detected
- U0100 - Lost Communication With ECM/PCM A
Related Vehicles
Part of the free Know Your Ride vehicle maintenance reference. Figures are sourced from EPA, NHTSA and manufacturer data and are for general reference - always confirm with your owner's manual.