2019 — 2026
12.8L OM 471 L6 - 530hp
Diesel
Monitor the Predictive Powertrain Control (PPC) while cruising; watch for inconsistent gear hunting or hesitations on inclines, which can sometimes indicate a need for a software calibration update.
Engage the auxiliary braking systems on a long descent; if you notice a delay in the retarder engagement or judder, it may be worth investigating the electronic brake system (EBS) sensors.
Listen closely to the turbocharger spooling during acceleration; any abnormal high-pitched whistling could be a sign of early wear on the OM 471's complex turbo assembly.
Check the MirrorCam feed clarity and responsiveness while manoeuvring; ensure the displays are crisp and free of screen flickering, as these sophisticated systems can be sensitive to voltage fluctuations.
Usually marks the point where the Diesel Particulate Filter (DPF) may require a professional cleaning or inspection to maintain emissions compliance.
A common window where the clutch assembly and auxiliary belt tensioners are typically evaluated for proactive replacement to avoid unexpected downtime.
Often the time to review the high-pressure fuel pump and injector performance to ensure the engine retains its efficiency and power delivery.
Keep a close eye on the AdBlue quality and dosing system, as these engines prefer high-quality fluid to prevent crystallization.
Regularly inspect the cab suspension air bellows for any small cracks, especially if the truck has been operating on rougher rural roads.
Ensure the cooling system is topped up with the correct coolant specification to protect the engine block from internal corrosion over time.
Keep up with regular greasing of the fifth-wheel coupling to reduce friction and long-term wear on your trailer kingpins.
Periodically check the cabin electrical connections, particularly around the fuse panels, to ensure everything stays dry and corrosion-free.
Estimated repair costs if issues arise
If the vehicle has seen a lot of stop-start city driving, you might eventually need to budget for a specialized professional DPF clean to keep the exhaust system breathing efficiently.
Given the complexity of the OM 471’s turbo system, it is sensible to consider that if internal seals eventually wear, a full turbo assembly replacement might be required for optimal performance.
If this unit has performed a high amount of heavy-load towing, you might want to set aside funds for a clutch replacement, which involves a significant labour component.
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Disclaimer: This report is generated with the assistance of AI analysis based on verified automotive data. While we strive for 100% accuracy, enthusiasts should always conduct physical inspections and consult service records. View Full Disclaimer