Mercedes GL350 BlueTEC 4MATIC: Comprehensive Diesel Suv Review

The Mercedes GL350 BlueTEC 4MATIC stands out as a formidable full-size luxury SUV, combining robust diesel engineering with opulent interior refinement. Introduced in its second generation around 2013, this model delivers impressive torque for towing and highway cruising while maintaining competitive fuel efficiency for its class.

Powerful Turbo Diesel Heart

At the core of the GL350 BlueTEC lies a **3.0-liter turbocharged V-6 diesel engine**, producing 240 horsepower and a substantial 455 lb-ft of torque available from just 1,600 rpm. This powertrain upgrade over predecessors provides smoother acceleration, with 0-60 mph times around 7.5 seconds and quarter-mile runs in 15.8 seconds—gains of over a second compared to earlier versions. The diesel’s low-end grunt excels in passing maneuvers and handles the vehicle’s 5,835-pound curb weight adeptly, despite minor turbo lag at very low speeds.

Paired with a **seven-speed automatic transmission** and standard 4MATIC all-wheel drive, the setup ensures seamless power delivery across varied conditions. Towing capacity reaches 7,500 pounds when equipped with the optional trailer hitch, making it ideal for boats, trailers, or campers. Cabin noise remains minimal, with only a refined rumble audible, enhancing long-distance comfort.

Exceptional Fuel Efficiency for a Giant

One of the GL350’s standout traits is its **EPA-rated 19 mpg city and 26 mpg highway**, translating to real-world averages of 21-22 mpg and up to 27 mpg on extended trips. With a 26.4-gallon fuel tank, drivers can achieve nearly 600 miles of range per fill-up, a boon for road trippers. Independent tests confirm these figures, with highway efficiency often surpassing EPA estimates at steady speeds.

This table highlights how the diesel variant outperforms typical gas V-8 rivals in efficiency without sacrificing utility.

Superior Ride and Handling Dynamics

Mercedes engineers equipped the GL350 with an **adaptive air suspension** (optional on some trims), which smooths out road imperfections while offering selectable modes like Comfort and Sport. Reviewers praise its ability to “melt away miles” on long hauls, thanks to composed body control, supportive seats, and a spacious cabin accommodating seven passengers.

Handling defies the SUV’s bulk, achieving 0.75 g on the skidpad with precise electric power steering. Braking from 70 mph stops in 175 feet, aided by a firm pedal feel. The 4MATIC system provides progressive traction on gravel, snow, or pavement, minimizing understeer and enhancing safety for everyday drivers. Visibility is excellent, bolstered by optional 360-degree cameras for parking this behemoth.

• Comfort Mode: Absorbs bumps for serene cruising.
• Sport Mode: Firmer damping reduces roll during spirited drives.
• Off-Road Package: Adds low-range gearing and skid plates for trails.

Luxurious and Practical Interior

Inside, the GL350 exudes Mercedes luxury with **leather upholstery, heated front seats, power-adjustable pews**, and premium materials throughout. Third-row seating folds flat for cargo versatility, while features like navigation, Bluetooth, Harman Kardon audio, and a power liftgate elevate daily usability. The cabin’s quietness and ergonomic design make it a top road-tripper, with ample space for families or gear.

Base pricing started around $61,825 for 2011-2013 models, undercutting V-8 siblings while offering superior economy over their 12-18 mpg figures.

Off-Road Prowess Meets On-Road Refinement

Beyond pavement, the GL350 shines with its **double-wishbone front and multilink rear suspension**, providing neutral handling up to the limit. The 4MATIC all-wheel drive reacts swiftly to slip, ideal for inclement weather or light trails. Optional off-road enhancements include a two-speed transfer case, further boosting capability without compromising highway poise.

Potential Drawbacks and Reliability Notes

While praised for performance, some owners report high maintenance costs, particularly with the BlueTEC diesel system requiring urea fluid (AdBlue) and potential emissions-related repairs. Value retention can lag due to these expenses, though smooth driving, power, and comfort remain highlights. Prospective buyers should factor in service history.

Who Should Buy the GL350 BlueTEC?

This SUV suits families needing space, luxury, and diesel efficiency for towing or long trips. It’s less ideal for those prioritizing sporty dynamics or minimal upkeep. Compared to gas-powered GL450/550 models, the BlueTEC offers better value for efficiency-focused buyers.

Frequently Asked Questions (FAQs)

What is the horsepower and torque of the GL350 BlueTEC engine?

The 3.0L V-6 turbo diesel delivers 240 hp and 455 lb-ft of torque.

How fuel-efficient is the Mercedes GL350 BlueTEC 4MATIC?

EPA ratings are 19/26 mpg (city/highway), with real-world tests averaging 21-27 mpg.

Can the GL350 tow heavy loads?

Yes, up to 7,500 lbs with the factory hitch option.

Is the GL350 good for off-roading?

With 4MATIC AWD and optional off-road package, it handles light trails effectively.

What are common maintenance issues?

Diesel emissions systems may require attention; budget for higher service costs.

Performance Specifications Overview

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