Mercedes-Benz E-Class2019

Known issues

• DPF regeneration issues and clogging, especially on low-mileage or predominantly city driving; forced regeneration cycles can be costly
• AdBlue system faults and SCR sensor malfunction, causing warning lights and potential limp-home mode
• OM654 engine timing chain stretch and rattle on cold start in some units; premature wear reported at high mileage
• 9-speed 9G-TRONIC automatic gearbox shudder or hesitation during low-speed manoeuvres and gear changes
• Diesel particulate filter regeneration blockages leading to engine warning light and reduced power
• EGR cooler leaks causing coolant seepage and potential overheating if not caught early

Good for

• Refined, quiet cabin with excellent NVH isolation and premium interior trim quality
• Strong motorway cruising ability with good fuel economy on longer runs (45–50 mpg typical)
• Robust OM654 diesel engine with proven longevity when serviced on schedule
• Comfortable, supportive seats and smooth suspension suitable for long-distance driving