2018 — 2021
2.1L OM651 DE22 LA RWD (120kW)
Diesel
Listen for high-pitched whining or rattling during acceleration. | Note: While these engines are robust, it is common to consider the health of the turbocharger, as bearing wear can occasionally appear in high-mileage examples.
Check the transmission engagement while moving from Park to Drive. | Note: With the 7G-Tronic gearbox, it is worth monitoring for any harsh shifting or hesitation, which could suggest that a fluid flush or solenoid check may be beneficial.
Look closely at the underside of the engine block and transmission housing. | Note: It is not unusual for older OM651 engines to develop minor oil seepage around the oil cooler gaskets; observing the garage floor after a test drive is a good practice.
Test the electrical systems including the sliding door sensor and infotainment interface. | Note: Given the complexity of Sprinter electronics, it's a good idea to ensure all cabin functions operate smoothly to avoid later troubleshooting.
Usually time to inspect the auxiliary drive belt and tensioner pulley for signs of wear.
A common point where your local specialist might recommend an inspection of the DPF (Diesel Particulate Filter) differential pressure sensor.
Consider having the glow plugs and relay tested, as these components may show their age around this stage.
Stick to the manufacturer's recommended oil change intervals using low-ash, synthetic Mercedes-approved oil.
Keep an eye on the coolant levels; maintaining the correct cooling system integrity helps protect the OM651’s cooling efficiency.
Regularly drain the fuel filter's water separator to keep the high-pressure fuel system happy.
Check your brake pad thickness during every service, as these heavy vehicles can be demanding on consumables.
Ensure your AdBlue system is kept clean and topped up to prevent crystallization issues in the SCR system.
Estimated repair costs if issues arise
If the van has spent a lot of time on short urban trips, you might eventually need to budget for a professional DPF regeneration or a deep clean to ensure the sensors and filter remain efficient.
If this component needs attention in the future, the estimated cost in NZ includes the specific Mercedes-spec fluid and filter pan gasket to keep your 7G-Tronic shifting smoothly.
Depending on the car's history, you might eventually need to budget for a cooling system refresh to ensure the engine maintains consistent operating temperatures during long hauls.
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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