2009 — 2018
2.1L OM651 DE22 LA (70kW)
Diesel
Listen carefully at idle and during low-speed acceleration for a 'ticking' or 'rattling' sound from the front of the engine, which could indicate the early stages of timing chain wear common in higher-mileage OM651 units.
Observe the instrument cluster under load; if you notice the engine losing power or entering 'limp mode', it could suggest the EGR valve or DPF is struggling, often seen in vans used primarily for short urban trips.
While parked on a flat surface, check for any 'weeping' or oil residue around the engine cover area, as the OM651 can occasionally develop leaks from the high-pressure fuel pump or valve cover gasket as the rubber seals age.
Operate the heating and cooling system across all zones while idling; ensure the auxiliary water pump is functioning correctly, as failing pumps are a frequent cause of inconsistent cabin temperatures in the W906 platform.
Consider a full cooling system flush and inspection of the plastic cooling hose connectors, which can become brittle.
A prudent time to have the timing chain tensioner inspected by a specialist, as maintenance here can prevent more significant work later.
The DPF may require a professional deep clean or replacement depending on the previous driving patterns of the vehicle.
Stick strictly to high-quality synthetic oil changes every 10,000 to 15,000km rather than the extended factory intervals to keep that turbo and timing chain happy.
Ensure the AdBlue system is used regularly; leaving these vehicles to sit for long periods can cause crystallization in the pump and 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 for any play during your regular service, as it is a common wear point on long-wheelbase Sprinters.
Keep the wheel arch liners clear of mud and road debris to prevent hidden rust from forming on the body seams.
Estimated repair costs if issues arise
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.
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 usually a minor weep from the seals. We recommend budgeting for a reseal kit if you notice any diesel scent or dampness around the pump area.
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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