Considering a used SUV that blends luxury with diesel efficiency? The 2007 Mercedes-Benz ML320 CDI might be on your radar. Sharing a platform with the 2008 model (and crucially, also avoiding AdBlue, unlike later models from 2009 onwards for the ML320), the 2007 ML320 CDI presents an interesting option in the pre-owned market. Having spent considerable time with a very similar 2008 model, let’s delve into the realities of owning one of these vehicles, highlighting both the compelling advantages and potential drawbacks to help you make an informed decision.
The Enduring Appeal of the 2007 ML320 CDI: What Makes it a “Beast”?
There’s a reason why owners often affectionately nickname this SUV “the beast.” The 2007 Mercedes-Benz ML320 CDI exudes a sense of robust power and capability. Its diesel engine delivers ample torque, making it feel like it can conquer any road condition. This translates into a relaxed and confident driving experience, especially on long journeys.
Impressive Highway Cruiser with Respectable Fuel Economy
As a highway cruiser, the ML320 CDI truly shines. Owners report achieving mid-20s MPG on diesel, a notable figure for a vehicle of this size and class. While gasoline-powered counterparts from the same era, requiring premium fuel, might offer slightly less economy in the mid-to-high teens MPG range, the diesel’s efficiency remains a strong point.
Well-Assembled Interior, Though with Hints of Cost-Cutting
Stepping inside the 2007 ML320 CDI reveals a well-constructed interior. While material quality is generally good, closer inspection does reveal areas where cost reduction measures were implemented. However, the overall ambiance remains distinctly Mercedes-Benz, offering a comfortable and reasonably luxurious environment. Space is generous in the second row, accommodating passengers comfortably, even with taller front occupants. Headroom is ample, further enhancing the sense of spaciousness. Importantly, the absence of the AdBlue tank in these pre-2009 models means you benefit from a full-size spare tire, a practical advantage often appreciated by owners.
Acknowledging the “Warts”: Areas to Consider in a 2007 Mercedes-Benz ML320 CDI
No used vehicle is without its potential downsides, and the 2007 Mercedes-Benz ML320 CDI is no exception. Prospective buyers should be aware of certain aspects that might require attention or adjustment in expectations.
Technology Showing Its Age
While the audio system in the ML320 CDI is undeniably powerful, delivering impressive bass, the integrated technology is dated by modern standards. Bluetooth and iPod integration, while functional, lack the seamlessness of contemporary systems. A2DP Bluetooth audio streaming, for instance, wasn’t standard at the time of this model’s design. Similarly, the navigation system, though present, can feel clunky and less intuitive compared to today’s smartphone-based navigation apps. Negotiating for an updated navigation DVD with the seller could be a worthwhile consideration.
Potential Power Tailgate Quirks
The power tailgate, a convenience feature, can sometimes exhibit temperamental behavior. Intermittent operation, where it might open erratically or require manual assistance, can occur. This complexity stems from a hydraulic system located beneath the floor, which could be prone to wear over time.
Tire and TPMS Costs
Be mindful of tire expenses. The factory-fitted 19-inch tires are a premium size, leading to higher replacement costs. Furthermore, Tire Pressure Monitoring System (TPMS) sensors are likely to require replacement alongside new tires, adding to the overall expense.
Maintenance Considerations and DIY Potential
Dealer maintenance can be expensive, particularly for oil changes. DIY oil changes are feasible, especially with a topsider oil extractor. However, strict adherence to the recommended “Mobil1 ESP Formula M 5W40” oil and a substantial 9-quart capacity are essential. Oil changes are recommended every 10,000 miles, with fuel filter replacements every 20,000 miles.
Transmission fluid maintenance is critical for longevity. Despite manufacturer claims of “lifetime” fluid after an initial 40,000-mile service, regular fluid changes, ideally every 50,000 miles after the initial service, are highly recommended. This 722.9 transmission requires a specific Mercedes-Benz fluid, and the fluid level check procedure is complex, lacking a traditional dipstick.
System Complexity and Fuel Sensitivity
The OM642 diesel engine in the 2007 ML320 CDI is a sophisticated piece of engineering, a significant step up in complexity from earlier diesel engines. This intricate design, sometimes referred to as a “rubber band ball” due to its numerous components, demands careful maintenance. The CDI fuel injection system is particularly sensitive to fuel contaminants. Therefore, using high-quality fuel from reputable sources is crucial to prevent injector issues. While the fuel filter incorporates a water separator, proactive fuel quality awareness is a key aspect of ownership.
Verdict: A Well-Maintained 2007 Mercedes-Benz ML320 CDI – A Recommended Choice?
Despite these potential “warts,” a well-maintained 2007 Mercedes-Benz ML320 CDI with a comprehensive service history remains a compelling option in the used SUV market. Its blend of diesel efficiency, robust performance, and Mercedes-Benz refinement continues to hold appeal. Thorough pre-purchase inspection, particularly focusing on maintenance records and addressing the points highlighted, will be key to ensuring a positive ownership experience.
