Mercedes CLS 350 BlueTEC: Full Review And Specs

The Mercedes CLS 350 BlueTEC stands as a pinnacle of engineering excellence, merging the sleek aesthetics of a coupe with the practicality of a four-door saloon. This model, powered by a robust 3.0-liter V6 turbodiesel engine, delivers 258 horsepower and a staggering 620 Nm of torque, making it ideal for long-distance cruising and spirited drives alike. Paired with the innovative 9G-Tronic nine-speed automatic transmission, it offers seamless shifts and enhanced fuel efficiency, achieving up to 49.6 mpg combined while emitting just 149 g/km of CO2.

Striking Exterior Design and Aerodynamic Mastery

From every angle, the CLS 350 BlueTEC captivates with its flowing lines and aggressive stance. The facelifted version introduces refined bumpers and cutting-edge LED Multibeam headlights that adapt dynamically to road conditions, providing exceptional visibility without dazzling oncoming traffic. These lights, a highlight of the update, feature adaptive high-beam assist for superior nighttime performance. The car’s low roofline and sculpted flanks not only enhance its visual appeal but also contribute to impressive aerodynamics, reducing drag for better high-speed stability and efficiency.

Available in AMG Line trim, the exterior gains sportier elements like larger alloy wheels and a more pronounced front grille, amplifying its road presence. Weighing around 1,935 kg, it maintains a balanced 50:50 weight distribution, ensuring agile handling despite its grand touring proportions. The Shooting Brake variant, while more practical, underscores the CLS’s versatility, though the standard saloon remains the purist’s choice for pure elegance.

Opulent Interior: Comfort Meets Cutting-Edge Tech

Step inside, and the CLS 350 BlueTEC envelops you in premium materials and thoughtful design. Leather-upholstered seats with heating and memory functions provide exceptional support, while ambient lighting creates a customizable atmosphere. The facelift brings an upgraded infotainment system with intuitive touchscreen controls, internet connectivity, and a reversing camera in higher trims.

Soundproofing is exemplary; the cabin remains hushed even at motorway speeds, with only a refined diesel burr audible under acceleration. Rear space accommodates adults comfortably for shorter trips, though the sloping roofline slightly compromises headroom. Standard features in AMG Line include a heated steering wheel and premium audio options like Harman Kardon, elevating the experience to S-Class levels at a more accessible price point around £51,000.

Powertrain Performance: Torque and Refinement United

At the heart lies the 3.0-liter V6 BlueTEC diesel, renowned for its refinement. Peak torque arrives from 1,600 to 2,400 rpm, propelling the CLS from 0-62 mph in 6.5-6.6 seconds and onto a top speed of 152 mph. The nine-speed gearbox shines with quick, smooth changes in automatic mode and paddle-shift responsiveness in Sport or Manual settings, unlocking a sportier exhaust note.

Fuel economy impresses in real-world tests, averaging around 40-45 mpg on mixed routes, far surpassing thirstier petrol rivals. Official figures claim 5.4 liters/100 km, bolstered by longer top gears that reduce emissions for tax benefits. The engine’s seamless power delivery makes overtaking effortless, with minimal turbo lag for confident highway merges.

Driving Dynamics: Balance of Comfort and Agility

On twisty roads, the CLS 350 BlueTEC surprises with its composure. Steering is precise and communicative, offering just enough weight for feedback without the artificial heft of some competitors. The suspension, tuned for the AMG Line, absorbs imperfections smoothly while maintaining body control through corners. Enter a bend too aggressively, and it exhibits mild understeer rather than snap oversteer, prioritizing safety and predictability.

Air suspension options further refine the ride, adapting to load and speed for optimal comfort. Rear-wheel drive ensures engaging propulsion, though occasional wheelspin demands throttle modulation on slippery exits. Overall, it’s a grand tourer that excels on motorways, delivering relaxation without sacrificing fun.

Practicality and Everyday Usability

Despite its coupe-like silhouette, the CLS offers a 520-liter boot, expandable via folding rear seats. It’s suitable for weekend getaways or family duties, though the Shooting Brake provides more cargo space for larger loads. Running costs remain competitive, with low BIK ratings appealing to company car drivers.

• Boot Capacity: 520 liters (standard), ample for luggage.
• Seating: Four adults with decent legroom.
• Fuel Tank: Supports 500+ mile ranges.
• Options: Sunroof, keyless entry, premium packs add luxury.

Safety and Reliability Highlights

Mercedes’ safety suite includes attention assist, adaptive cruise, and multiple airbags. Euro NCAP ratings for the CLS class underscore its five-star status, with robust crash structures. Reliability is strong for the BlueTEC engine, backed by Mercedes’ warranty.

Ownership Costs and Value Proposition

Priced from £51,400, the CLS 350 BlueTEC undercuts rivals while offering superior kit. Premium packs add value without excessive cost, making it a smart luxury buy. Resale holds firm due to diesel demand and timeless styling.

Pros and Cons at a Glance

• Pros: Potent yet efficient engine, luxurious cabin, advanced lighting, smooth transmission, stylish design.
• Cons: Weight dulls agility slightly, Shooting Brake more practical, higher trims escalate price.

Frequently Asked Questions (FAQs)

Is the CLS 350 BlueTEC reliable?

Yes, the V6 diesel is proven durable with proper maintenance, common in Mercedes fleets.

How does it compare to BMW 5 Series?

The CLS prioritizes style and comfort over the 5 Series’ sharper handling, but matches in power.

What’s the real-world fuel economy?

Expect 40-45 mpg mixed, better than petrol variants.

Is the 9-speed gearbox worth it?

Absolutely; smoother and more efficient than the prior 7-speed.

Suitable for daily driving?

Yes, refined and comfortable for commutes or tours.

Final Thoughts on the CLS 350 BlueTEC

The Mercedes CLS 350 BlueTEC excels as a versatile luxury saloon, blending diesel efficiency, potent performance, and opulent features. Its facelift enhancements solidify its status as a compelling choice in the premium segment.