M264
Mercedes-Benz · 2.0L Turbo 48V I4
2017–present
"M274 evolution with 48V mild hybrid. More refined, fewer known issues."
Mileage Risk Timeline
When problems typically appear — enter your mileage to see your risk zone
Known Issues 2
Thermostat failure (inherited from M274)
▸Coolant temp abnormal, poor heater performance
Same thermostat design concern as M274. Well-documented fix.
Same €250-500 repair as M274. Any Greek Mercedes workshop handles this.
EQ Boost 48V mild hybrid system complexity
▸Mild hybrid warning, starter-generator faults, 48V battery alerts
Additional complexity vs M274. 48V ISG starter-generator can fail. Battery pack lifespan uncertain at high mileage.
Limited long-term Greek market data yet. W206 C-Class owners: budget for 48V system service.
Models with M264 12
Related Guides
Other Mercedes-Benz Engines
Tuning Potential
Limited data
Frequently Asked Questions
Is the Mercedes-Benz M264 reliable?
The Mercedes-Benz M264 scores 78/100 with a verdict of BUY. It has 2 documented issues with total repair costs between €750 and €2,500.
What are the common problems with the M264?
The most common issues are:
- Thermostat failure (inherited from M274) — moderate, repair cost €250–€500, 60,000 km–130,000 km
- EQ Boost 48V mild hybrid system complexity — moderate, repair cost €500–€2,000, 80,000 km–150,000 km
What cars use the Mercedes-Benz M264?
How much does it cost to repair the M264?
Total potential repair costs for all 2 known issues range from €750 to €2,500. The most expensive issue is typically .
What years was the M264 produced?
The Mercedes-Benz M264 was produced from 2017 to present. It is a 1991cc I4 petrol turbo engine.
Scores are calculated from documented issues, repair costs, and failure patterns across thousands of owner reports and technical sources. Learn about our methodology. Always inspect before you buy.