OM654
Mercedes-Benz · 2.0L Diesel I4
2016–present
"Best modern MB diesel. Aluminium block, low friction. Long-distance champion."
Mileage Risk Timeline
When problems typically appear — enter your mileage to see your risk zone
Known Issues 2
DPF — better than older MB diesels but still diesel
▸DPF warning on prolonged city use
Aluminium block and NANOSLIDE technology make OM654 best modern MB diesel but DPF still needs regen.
Less DPF-sensitive than OM651, but Athens city-only drivers: still consider petrol alternative.
Minor EGR fouling (best-in-class but not immune)
▸Slight rough idle at high mileage, EGR codes
Best modern MB diesel. Even so, EGR standard diesel maintenance needed at 100k+ km. Far less severe than older MB diesels.
Athens city use still accelerates EGR. Even OM654 benefits from occasional highway run. Best diesel for mixed use.
Models with OM654 47
Other Mercedes-Benz Engines
Tuning Potential
Moderate
Frequently Asked Questions
Is the Mercedes-Benz OM654 reliable?
The Mercedes-Benz OM654 scores 85/100 with a verdict of BEST. It has 2 documented issues with total repair costs between €500 and €1,500.
What are the common problems with the OM654?
The most common issues are:
- DPF — better than older MB diesels but still diesel — minor, repair cost €300–€1,000, 80,000 km–150,000 km
- Minor EGR fouling (best-in-class but not immune) — minor, repair cost €200–€500, 100,000 km–180,000 km
What cars use the Mercedes-Benz OM654?
How much does it cost to repair the OM654?
Total potential repair costs for all 2 known issues range from €500 to €1,500. The most expensive issue is typically .
What years was the OM654 produced?
The Mercedes-Benz OM654 was produced from 2016 to present. It is a 1950cc I4 diesel engine.
Verdict and scores are editorial opinions based on aggregated data. Learn about our methodology. Not a substitute for professional inspection.