2001 — 2007
3.2L I6 (162kW) - 4WD
Petrol
While driving on a variety of road surfaces, listen for clunking or wandering steering; in older 4WDs like this, it is common to consider whether the heavy chassis has worn out the suspension bushes or ball joints over time.
Check this by cycling through the 4WD modes (2H, 4H, 4L) while stationary or at low speed; depending on the car's history, the electronic transfer case motor might eventually need attention if it hasn't been engaged regularly.
During the test drive, pay attention to how the Mercedes-sourced 5-speed automatic shifts; if you notice hunting between gears or harsh engagement, it is worth considering if the transmission conductor plate or fluid needs a refresh in the future.
Check this by inspecting the engine bay for signs of oil dampness near the cylinder head; in these 3.2L inline-six engines, it's often helpful to budget for eventual gasket replacements to keep the top end of the engine dry and healthy.
Time for a comprehensive spark plug replacement and a full check of the cooling system hoses and radiator.
Consider a transmission service including a new filter and high-quality fluid to maintain the smooth Mercedes-spec gear changes.
A great time to evaluate the health of the timing chain tensioner and the front-end suspension components to keep the ride quality firm.
Focus on the fuel system health, including pump and filter, along with a deep inspection of the 4WD actuator systems.
Verify the service history specifically for the use of high-quality, Mercedes-compliant engine oil.
Ensure the cooling system is free of leaks, as the M104-derived engine prefers consistent operating temperatures.
Check the condition of the accessory drive belt and pulleys for any squeaks or signs of cracking.
Inspect the tyres for even wear, which confirms the 4WD system and alignment are working in harmony.
Test all cabin electronics, including the power seats and climate control, to ensure the electrical loom is in good shape.
Estimated repair costs if issues arise
If the gear shifts start to feel inconsistent, you might eventually need to budget for a new conductor plate and a fluid service to restore that smooth Mercedes-designed transmission feel.
In cars of this age, the I6 engine may develop small oil leaks. Budgeting for a gasket refresh ensures the engine remains efficient and prevents any environmental drips on your driveway.
Because the Rexton is a heavy, ladder-frame vehicle, the rubber components in the suspension naturally compress. Budgeting for new bushes and shocks will make it feel like a new car again.
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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