2005 — 2011
ML350 3.5L V6
Petrol
Check this by observing the gear changes while driving at low speeds. | Note: In the W164, the 7G-Tronic transmission can sometimes feel hesitant; ensure shifts are smooth rather than clunky, as valve body issues can occasionally arise in higher-mileage examples.
While parked with the engine running, turn the steering wheel lock-to-lock. | Note: Listen for any whining noises from the power steering pump or groaning from the suspension, as the front air struts or ball joints may show their age on these heavier SUVs.
Check this by testing all electrical accessories, specifically the COMAND infotainment system. | Note: These vehicles have complex wiring; ensure all buttons, seat heaters, and power tailgates function correctly to avoid potential gremlins in the electrical modules.
While stationary, look under the engine bay after a short test drive. | Note: It is worth checking for signs of oil seepage near the engine valley; the M272 engine intake manifold adjusters can occasionally wear over time, making it worth keeping an eye on your driveway.
Usually the time to ensure the transmission fluid and filter service has been completed, as this is vital for smooth operation.
Common point to inspect the suspension components, particularly air springs or shocks, for any signs of sagging or uneven ride height.
A good milestone to review the alternator and auxiliary drive belt system to ensure the vehicle remains reliable for longer trips.
Prioritize a pre-purchase inspection from an independent European specialist who knows the W164 chassis well.
Confirm the service history shows regular oil changes using high-quality synthetic lubricants to keep the V6 engine running smoothly.
Check the condition of the brake rotors and pads, as the ML350 is a heavy vehicle that uses them up faster than a standard saloon.
Ensure the panoramic sunroof drains are clear, as blocked drains can occasionally allow moisture into the cabin.
Verify the battery health, as the ML350 relies heavily on a strong charge to manage its complex electronic systems.
Estimated repair costs if issues arise
If the vehicle is equipped with Airmatic suspension, it is worth noting that these bags can eventually perish with age. Depending on the car's history, you might eventually need to budget for the replacement of a strut or the compressor.
While the 7G-Tronic is a robust unit, regular maintenance is key. If this component needs attention in the future, the estimated cost in NZ for a specialist service or potential valve body repair is significant to keep the shifts smooth.
On the M272 3.5L V6, the plastic components in the intake manifold can wear out over time. If a check engine light appears, it is common to consider replacing the manifold or the linkage mechanism to ensure optimal performance.
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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