2013 — 2019
OM 473 - 15.6L Inline-6 (460kW)
Diesel
Test Drive Task: Engage the PowerShift 3 automated transmission across all gears while under load. | Detail: In heavy-duty applications, it is common to consider that sensor calibration or clutch actuator wear may occur. Ensure gear shifts feel decisive rather than hesitant or jerky.
Check this by: Inspecting the air dryer and pneumatic lines for any moisture or hissing sounds. | Detail: The Arocs relies heavily on its complex air system; checking for leaks ensures the suspension and braking systems are operating at peak efficiency.
While driving: Monitor the OM 473 engine temperature and oil pressure under sustained incline work. | Detail: Given the 15.6L displacement, cooling system health is paramount. It is wise to verify that the temperature remains stable without rapid fluctuation.
Check this by: Examining the chassis rails and rear-axle suspension bushings for signs of excessive wear or heavy-load fatigue. | Detail: As these trucks are often worked hard in rugged environments, inspecting the frame for structural stress is a sensible precaution for any high-mileage unit.
Consider a comprehensive check of the EGR system and DPF cleaning intervals to ensure the emissions systems remain compliant and efficient.
It is often a good time to evaluate the state of the turbocharger and potential injector service life to maintain optimal fuel economy.
At this stage, a thorough inspection of the drivetrain components, including the driveshaft U-joints and differential internals, is recommended.
Perform engine oil and filter changes strictly adhering to Mercedes-Benz specifications to protect the high-torque OM 473 engine.
Regularly service the PowerShift 3 automated manual transmission to ensure smooth shifting and longevity.
Keep a consistent schedule for lubricating chassis grease points to prevent premature wear on heavy-load pivots.
Monitor the AdBlue consumption and maintain the dosing system to ensure the Selective Catalytic Reduction system operates correctly.
Check wheel bearings and brake pad thickness regularly, especially if the vehicle is frequently tasked with heavy haulage.
Estimated repair costs if issues arise
If the transmission requires attention in the future, the estimated cost in NZ is reflective of the specialized labour and genuine OEM parts required for this heavy-duty system.
Depending on the truck's specific duty cycle and idle history, you might eventually need to budget for a turbo overhaul to restore boost efficiency and power delivery.
To avoid sudden downtime, it is common to consider professional DPF cleaning or sensor replacement as part of long-term future budget planning for these Euro 6 engines.
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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