Mercedes-Benz C-Class2016

Known issues

• DPF (diesel particulate filter) clogging and regeneration issues, particularly on cars with low annual mileage or short urban trips
• Diesel injector stiction and carbon build-up causing rough idle, hesitation, and increased emissions
• EGR valve carbon accumulation leading to reduced power and limp-mode activation
• Turbocharger bearing wear and occasional shaft play, especially on higher-mileage examples
• Glow plug failures in cold weather, more common after 80,000 km
• AdBlue system sensor faults and crystallisation in injector lines causing warning lights

Good for

• Excellent fuel economy on motorway driving (45–50 mpg real-world)
• Strong, linear torque delivery and responsive acceleration for a 2.0L diesel
• Robust interior materials and Mercedes build quality feel
• Low depreciation and strong resale value in the used market