The Mercedes-Benz ML 320 and ML 350 BlueTEC, manufactured between 2007 and 2015, are iconic diesel SUVs that blend luxury with capability. Whether you’re driving the W164, with its robust OM642 V6 3.0L turbodiesel, or the W166 with enhanced features, these models represent the pinnacle of SUV engineering in their class. They are especially valued among Dieselgate survivors looking to donate and share their story with a community-driven organization like Tennessee Auto Legacy.
The transition into the AdBlue era with BlueTEC technology not only marked an evolution in performance but also brought a new layer of maintenance considerations. Owners in Knoxville understand the importance of AdBlue system upkeep, especially when considering the implications of the settlement around the emissions issue. Donating your vehicle can help streamline the process while ensuring that you’ve made an impact within the community.
📖Generation guide
W164 Facelift • 2007-2011
Includes ML 320 CDI, ML 320 BlueTEC, and ML 350 BlueTEC with the 3.0L V6 OM642 engine. This generation is known for its refined interior and balanced performance.
W166 2nd Generation • 2012-2015
Features the carryover OM642 engine and 7G-Tronic Plus transmission. It's equipped with optional AIRMATIC air suspension and represents the last variant before the GLE rename.
Known issues by generation
Owners should be aware of several model-specific issues across generations of the ML 320 and ML 350 BlueTEC. The OM642 V6 3.0L turbodiesel is infamous for oil-cooler seal failures, which can lead to costly repairs. Swirl-flap intake-runner failures are also problematic, potentially damaging the turbo. Additionally, AdBlue-related issues can trigger NOx sensor codes, prompting a limp mode that may lead to a restart counter countdown. The DPF regen cycle also needs monitoring, particularly for those frequently making short trips. If your vehicle has undergone any settlement fixes, it's wise to disclose this during the donation process.
Donation value by condition + generation
The donation value of your ML 320 or ML 350 BlueTEC can vary significantly based on its condition, mileage, and maintenance history. Low-mileage, clean-history examples are increasingly rare, especially within the dieselgate cohort. Trim levels, such as the ML 350 BlueTEC, tend to command higher appraisals, especially if they have avoided typical pitfalls like AdBlue failures. Vehicles that have completed settlement fixes may also see a premium among buyers, given the peace of mind associated with emissions compliance.
Donation process for this model
When donating your diesel SUV, it's crucial to consider specifics such as the vehicle's history, including AdBlue/DEF tank functionality, and the DPF regen status. Higher GVWR vehicles may require a heavy-duty flatbed for transport. It's important to disclose if your vehicle has undergone Dieselgate fixes or if it has a biodiesel conversion history. The fueling discipline—ensuring diesel-only is used—is mandatory as using gasoline can lead to catastrophic HPFP failures costing upwards of $10,000.
Knoxville regional notes
In Knoxville, the demand for Mercedes-Benz ML 320 and ML 350 BlueTEC vehicles is influenced by the region's unique driving conditions and recreational opportunities. The standard 4MATIC AWD makes these models ideal for navigating Tennessee’s variable weather, while their towing capacity (up to 7,200 lbs) appeals to outdoor enthusiasts. Local dealer networks can assist with any required AdBlue service, ensuring that your vehicle maintains its performance.