2005 — 2011
ML 350 3.5L V6 Petrol
Petrol
While accelerating gently between 40-60km/h, pay close attention to any shuttering or hesitation, as the 7G-Tronic transmission valve body can occasionally show signs of wear in these models.
Turning the steering wheel fully to the left and right while parked. Listen for any clicking or whining noises from the power steering pump or rack, which can be an early indicator of aging seals.
Before starting the cold engine, check for any oil residue around the engine valley or the back of the cylinder heads, as the oil cooler seals are known to weep after significant time on the road.
Testing every electrical button, specifically the air suspension (if fitted) and the infotainment screen. These older electronics can sometimes become intermittent, so cycling through the menus is a wise move.
Usually the time to inspect the secondary air injection system and associated vacuum lines.
A common point where the suspension air bags or shock absorbers may start to lose their optimal damping capability.
Consider a full cooling system refresh, including the thermostat and water pump, to ensure engine longevity.
Ensure the transmission fluid has been serviced regularly, as clean fluid is the best way to maintain the 7G-Tronic system.
Keep an eye on the oil level, as the 3.5L V6 engine performs best when it is kept topped up with high-quality, synthetic European-spec oil.
Check the condition of the cabin air filter to ensure the climate control system remains efficient and the windscreen stays clear in NZ's humid conditions.
Verify the presence of a detailed service history; a car that has been cared for by a Mercedes specialist is often a safer bet than one with patchy records.
Inspect the undercarriage for any surface rust, particularly if the vehicle has spent time in coastal regions, to ensure the chassis remains in good health.
Estimated repair costs if issues arise
In some W164 models, the seals on the oil cooler can harden over time. Because this is buried deep in the 'V' of the engine, it is a labor-intensive job. Future budget planning would involve setting aside funds for this if you notice oil drips under the car.
If your GLE is equipped with air suspension, it provides a wonderful ride but can be complex. Depending on the car's history, you might eventually need to budget for the replacement of an air strut or the compressor pump.
Should the transmission start acting irregularly, it often relates to the electronic conductor plate rather than a mechanical failure. If this component needs attention in the future, it involves internal transmission work by a specialist.
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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