2013 — 2018
2.1L OM651 DE22 LA (70kW) Euro 6 BlueTEC
Diesel
Scan the dashboard for any persistent SCR, AdBlue, or engine management warning lights during a prolonged test drive | Observation: The Euro 6 emission system relies heavily on sensors that can easily trigger fault codes or countdown timers if the reductant system malfunctions.
Listen carefully at idle and during low-speed acceleration for a 'ticking' or 'rattling' sound from the front of the engine | Observation: This could indicate the early stages of timing chain wear, though the tensioners were slightly updated in later years, high-mileage commercial examples still require vigilance.
Observe the instrument cluster and check for smooth shifting through the gears under load | Observation: If equipped with the 7G-TRONIC automatic transmission, ensure there is no gear hunting, flares, or hesitation, as the conductor plate and fluid require strict maintenance intervals.
Operate the heating and cooling system across all zones while idling | Observation: Ensure the auxiliary water pump is functioning correctly, as failing pumps are a frequent cause of inconsistent cabin temperatures and slow windshield demisting in the W906 platform.
Consider a full cooling system flush and a specialized inspection of the AdBlue tank heater and delivery lines for crystallization.
A prudent time to have the timing chain tensioner and chain slack inspected by a specialist, and check the transmission fluid condition of the 7G-TRONIC gearbox.
The DPF and SCR catalyst may require a professional deep clean or performance evaluation due to ash accumulation from emission control cycles.
Stick strictly to high-quality synthetic oil changes every 10,000 to 15,000km using MB-approved 229.51/229.52 low-ash oil to protect the complex Euro 6 DPF and catalytic converter.
Ensure the AdBlue system is used and topped up regularly with high-quality fluid; leaving these vehicles to sit for long periods can cause crystallization in the pump and injector lines.
Periodically check the sliding door rollers and floor tracks; a little bit of spray grease goes a long way in preventing premature wear on these high-use components.
Inspect the prop-shaft center bearing and universal joints for any play during your regular service, as it is a common wear point on long-wheelbase Sprinters on rough NZ roads.
Keep the wheel arch liners clear of mud and road debris to prevent hidden rust from forming on the body seams and jacking points.
Estimated repair costs if issues arise
If this system throws a fault, it is often due to a failed AdBlue tank heater, delivery pump, or NOx sensor. Because components are frequently sold as complete assemblies, you might need to budget significantly for a professional replacement.
In cars of this age, it's common to consider the health of the timing chain. If a technician notices slack, you might eventually need to budget for a replacement to ensure long-term engine reliability.
If this component needs attention in the future, it is often due to soot buildup from stop-start driving. Depending on the car's history, you might eventually need to budget for a specialized chemical clean or, in some cases, a replacement unit.
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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