2001 — 2006
2.9L (OM602) - RX290 Classic/Luxury
Diesel
Check this by engaging 4WD High and Low range while stationary on a loose surface to ensure the transfer case shifts smoothly without clunking or hesitation.
While driving at low speeds, pay attention to the steering rack for any 'dead' spots or sluggish feedback, as these heavy rigs can put strain on steering components over time.
Perform a cold start to observe the idle quality; look for excessive blue or grey smoke, which might suggest wear in the robust but aging OM602 diesel internals.
Check this by cycling through all interior electricals, including the window regulators and climate controls, as brittle plastic clips and ageing wiring looms are common in vehicles of this vintage.
Usually marks the point where glow plugs may need refreshing for easier winter starts.
Often when suspension bushings and shocks have reached the end of their service life and may warrant a refresh to restore the ride quality.
The OM602 engine is legendary, but at this stage, the cooling system components like the water pump and radiator hoses should be treated as high priority for replacement.
Change engine oil and high-quality filter every 7,500km to keep the 2.9L heart happy.
Flush the transmission fluid periodically to ensure those gear shifts stay crisp and smooth.
Regularly inspect the chassis and underbody for surface rust, especially if the vehicle has been used for towing or beach access.
Keep the fuel filter fresh, as the OM602 can be a little sensitive to sediment buildup over time.
Monitor the coolant concentration and condition to prevent internal corrosion of the cooling galleries.
Estimated repair costs if issues arise
Given the Rexton's heavy-duty nature, the springs and dampers can sag with age. If the ride feels a bit 'bouncy' or harsh, you might eventually need to budget for a full suspension overhaul to bring back that solid, composed feel.
Preventative maintenance is key for these older diesel engines. If this component needs attention in the future, the estimated cost in NZ covers a new radiator, water pump, and fresh hoses to ensure your engine stays cool during long climbs.
Depending on the car's history, the fuel injectors may eventually require professional cleaning or testing to maintain fuel efficiency and smoke-free operation.
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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