2006 — 2012
2.7L Xdi Diesel - 121kW AWD
Diesel
Observe the gear shifts when cold; ensure they are smooth, as the Mercedes-derived 5-speed transmission can sometimes experience solenoid wear over high mileage.
Turn the steering wheel to full lock in both directions while stationary; listen for any groaning or shuddering which may indicate that the power steering pump or rack is starting to show its age.
Engage the 4WD system on a loose surface; ensure the switch between 2H, 4H, and 4L is responsive, as the vacuum-operated hubs can occasionally stick if the vehicle has been sitting for long periods.
Monitor the temperature gauge during a longer climb; verify it stays steady, as these 2.7L diesel units prefer a cooling system that is free of sediment and running fresh coolant.
Usually the stage where suspension bushings and ball joints may show minor play, often requiring a standard WOF check-up of the front end.
A common point to review the condition of the turbocharger and surrounding intercooler piping for signs of oil misting or potential fatigue.
Consider having a professional inspect the timing chain tensioner and auxiliary belt pulleys to ensure they remain within factory specifications.
Keep up with engine oil changes every 10,000km using a high-quality synthetic oil to protect the turbo bearings.
Ensure the transmission fluid is flushed periodically, as this goes a long way in keeping the Mercedes-sourced gearbox shifting reliably.
Check the brake calipers regularly for seized slide pins, which is a common quirk of heavier 4WD vehicles in NZ's coastal environments.
Keep an eye on the cabin air filter to ensure the climate control fan isn't working harder than it needs to.
Verify the chassis has been washed regularly to prevent surface rust, particularly if the vehicle has been used for towing at boat ramps.
Estimated repair costs if issues arise
Future Budget Planning: These injectors are robust, but as they age, you may eventually need to budget for professional testing or cleaning to maintain optimal fuel efficiency and cold-start performance.
Future Budget Planning: Given the weight of the G4 Rexton, it is common to eventually replace shock absorbers and front control arm bushes to restore the ride quality to its original factory feel.
Future Budget Planning: If you notice a loss of power or 'limp mode' under load, you might eventually need to budget for cleaning the variable geometry vanes or servicing the vacuum actuator.
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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