Considering a used luxury SUV that blends power, comfort, and diesel efficiency? The Mercedes Ml 320 CDI, particularly models from 2007 and 2008, deserves a closer look. These pre-AdBlue models offer a robust driving experience without the complexities of later emissions systems, making them potentially attractive on the used market. Having spent time evaluating these vehicles, here’s a breakdown of what prospective buyers should consider.
The Enduring Appeal of the Mercedes ML 320 CDI
Owners often describe the ML 320 CDI as “the beast” – a testament to its powerful engine and commanding road presence. This SUV excels as a highway cruiser, offering a comfortable ride and surprisingly decent fuel economy for its class. Diesel models can achieve mid-20s MPG, while gasoline versions, requiring premium fuel, still manage mid to high teens. Inside, the ML 320 boasts a well-assembled interior, though some cost-saving measures are noticeable. A significant advantage of these earlier models is the absence of AdBlue, freeing up space for a spare tire, albeit a compact one. Passenger space is generous, especially in the second row, accommodating even taller individuals comfortably.
Addressing the ML 320 CDI’s Drawbacks
However, owning a used Mercedes ML 320 CDI isn’t without its considerations. The technology, while advanced for its time, now feels dated compared to modern vehicles. The audio system, despite its impressive sound quality and bass, suffers from clunky Bluetooth and iPod integration. Navigation is functional but less intuitive than contemporary systems. The power tailgate can be temperamental, potentially indicating wear in its complex hydraulic mechanism. Tire replacement can be expensive, especially for the original 19-inch sizes, and TPMS sensor failures are common.
Maintenance is another crucial factor. Dealer servicing can be costly, particularly for oil changes which require specific Mobil 1 ESP Formula M 5W40 and a substantial quantity. DIY oil changes are feasible with the right tools, but adherence to Mercedes-Benz specifications is vital. Transmission fluid changes, though officially listed as “lifetime” after the initial 40k mile service, are recommended more frequently (around every 50k miles) to ensure longevity, using only the designated Mercedes-Benz fluid. The engine and associated systems are complex, a significant leap from older, simpler diesel engines, demanding careful maintenance and attention to fuel quality due to the CDI system’s sensitivity to contaminants.
Smart Used Buy?
Despite these potential drawbacks, a well-maintained Mercedes ML 320 CDI with a comprehensive service history can still be a worthwhile purchase. Key areas to inspect include the catalytic converter (replacement may be needed around the 100k mile mark), transmission service records, and overall maintenance history. Prioritizing a vehicle with documented dealer servicing increases the likelihood of a reliable ownership experience. For those seeking a capable, comfortable, and relatively fuel-efficient used luxury SUV, the Mercedes ML 320 CDI remains a contender, provided due diligence is exercised in pre-purchase inspection and ongoing maintenance.
