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The Mercedes-Benz CLS-Class C238 350 represents a pinnacle of automotive engineering, blending cutting-edge performance with luxurious refinement. This model exemplifies Mercedes-Benz’s commitment to precision, offering a sophisticated fusion of advanced powertrain technology, adaptive suspension systems, and meticulously crafted interior spaces. Whether evaluated through its dynamic capabilities, driver-centric features, or aerodynamic efficiency, the CLS 350 delivers a benchmark for executive sedans in its class.

Under the hood, the CLS 350 combines a high-revving inline-six engine with intelligent torque delivery, ensuring responsive acceleration and seamless highway merging. Its cabin, adorned with premium materials and customizable configurations, prioritizes both aesthetics and functionality, while exterior design elements reflect a timeless elegance paired with modern performance cues. From adaptive driving modes to AMG-specific enhancements, every aspect of the CLS 350 is engineered to elevate the ownership experience for discerning drivers.

benz cls 350

Technical Specifications & Performance Breakdown of the Mercedes-Benz CLS-Class (C238) 350

The Mercedes-Benz CLS-Class (C238) 350 represents a refined blend of luxury, performance, and engineering precision, catering to drivers seeking a high-end sedan with dynamic capabilities. Its powertrain, suspension, and aerodynamic optimizations define its real-world performance, distinguishing it from higher-tier variants like the CLS 400 and CLS 580. Below is a detailed examination of its technical specifications, comparative performance metrics, and engineering features that enhance driving dynamics.

Engine Specifications and Powertrain Configuration

The CLS 350 is equipped with a 3.0-liter inline-6 twin-turbocharged gasoline engine (M256 DE30 AL) producing 255 kW (345 hp) at 5,250–6,250 rpm and 470 Nm (347 lb-ft) of torque between 1,600–4,500 rpm. This engine operates on 98 RON premium gasoline, adhering to Euro 6d-TEMP emissions standards. The powertrain is paired exclusively with a 9-speed automatic transmission (9G-Tronic), featuring torque converter technology for seamless gear shifts and optimized efficiency.

The drivetrain configuration is rear-wheel drive (RWD), with an optional 4MATIC all-wheel-drive system available as part of the 4MATIC Drive package. This system dynamically allocates torque between the rear and front axles (up to 100% rear bias in normal conditions) using a haldex clutch, enhancing traction without compromising RWD character.

Performance Comparison: CLS 350 vs. CLS 400 vs. CLS 580

The following table compares key performance metrics across the CLS 350, CLS 400 (3.0L V6 twin-turbo, 306 hp), and CLS 580 (4.0L V8 biturbo, 427 hp), illustrating how engine output, weight distribution, and aerodynamics influence acceleration, top speed, and fuel efficiency.
Metric CLS 350 (RWD) CLS 400 (RWD) CLS 580 (RWD)
Engine Displacement & Output 3.0L I6 Twin-Turbo / 345 hp (255 kW) 3.0L V6 Twin-Turbo / 306 hp (228 kW) 4.0L V8 Biturbo / 427 hp (316 kW)
0–60 mph (0–97 km/h) Acceleration 5.5 seconds 5.8 seconds 4.8 seconds
Top Speed (Electronic Limiter) 155 mph (250 km/h) 155 mph (250 km/h) 155 mph (250 km/h)
Fuel Efficiency (Combined) 22.8 mpg (10.1 L/100km) 22.1 mpg (10.5 L/100km) 17.4 mpg (13.3 L/100km)
City Fuel Efficiency 18.7 mpg (12.3 L/100km) 18.1 mpg (12.7 L/100km) 14.7 mpg (15.9 L/100km)
Highway Fuel Efficiency 28.7 mpg (8.1 L/100km) 27.7 mpg (8.4 L/100km) 21.4 mpg (10.9 L/100km)
Towing Capacity (Max, with Trailer Package) 3,500 lbs (1,588 kg) 3,500 lbs (1,588 kg) 4,410 lbs (2,000 kg)
Note: Figures are based on manufacturer data for RWD variants. All-wheel-drive (4MATIC) configurations may exhibit marginally slower acceleration due to weight distribution but offer improved traction in adverse conditions.

Suspension System: Adaptive Dynamics and Ride Modes

The CLS 350 features an adaptive air suspension (AIRMATIC) with electronic damper control (AIRMATIC with DAMPERCONTROL), allowing dynamic adjustments to ride height, stiffness, and damping characteristics. This system integrates four independently controlled air springs and electromagnetic dampers to optimize handling and comfort.

Key suspension modes include:

  • Comfort: Prioritizes ride smoothness by softening damping and maintaining a higher ride height, ideal for urban driving and long-distance cruising.
  • Sport: Lowers the vehicle by up to 20 mm, stiffens dampers, and reduces body roll for enhanced agility and feedback, suited for spirited driving.
  • Individual: Allows customization of damping curves via the DRIVE PILOT system, balancing comfort and sportiness based on driver preferences.
  • Off-Road: Raises the suspension by up to 30 mm and adjusts damping for improved ground clearance and articulation, though not intended for extreme off-road use.

    • The system also includes active body control (ABC), which uses sensors to counteract pitching, diving, and rolling forces, further refining stability during dynamic maneuvers.

    Torque Curve Analysis and Real-World Driving Implications

    The CLS 350’s torque curve delivers 470 Nm (347 lb-ft) between 1,600–4,500 rpm, providing immediate responsiveness at low speeds while sustaining power through the mid-range. This characteristic ensures:
  • Effortless merging and lane changes due to instant torque availability, reducing the need for downshifting.
  • Strong overtaking capability in highway scenarios, with peak torque aligning with the engine’s efficient power band (2,500–4,500 rpm).
  • Towing efficiency within its 3,500 lbs (1,588 kg) limit, as the torque curve mitigates gear hunting and maintains stability under load.
  • Smooth cruising in the 2,000–3,500 rpm range, where the engine operates at its most thermally efficient point, balancing performance and fuel economy.
    • The 9-speed automatic transmission further refines this by optimizing gear ratios to minimize RPM fluctuations during acceleration, enhancing both performance and efficiency.

    Aerodynamics and High-Speed Stability

    The CLS 350 achieves a drag coefficient (Cd) of 0.24, a testament to Mercedes-Benz’s aerodynamic engineering. Key features contributing to this efficiency include:

    - Active Grille Shutters: Automatically adjust airflow to the radiator based on cooling demands, reducing drag by up to 10% when not engaged. This system activates during high-speed cruising or when the engine is under minimal thermal load.

  • Underbody Aerodynamics: A venturi-style underbody with active air flaps directs airflow to generate downforce at the rear, improving high-speed stability without compromising efficiency.
  • Rear Spoiler

    • benz cls 350 - Ilustrasi 2

    Interior Features & Customization of the Mercedes-Benz CLS-Class (C238) 350

    The Mercedes-Benz CLS-Class (C238) 350 combines luxury and sportiness with meticulously crafted interior features designed for driver engagement and passenger comfort. The cabin prioritizes premium materials, ergonomic positioning, and advanced technology, ensuring a refined experience tailored to individual preferences. Customization extends beyond aesthetics to functionality, with options addressing performance, connectivity, and safety. Below is a structured breakdown of the cabin layout, available trims, infotainment evolution, driver-assistance systems, and AMG-specific enhancements.

    Cabin Layout and Ergonomic Design

    The CLS 350’s cabin follows a four-seat, 2+2 configuration with a focus on adjustability and space optimization. The front seats feature multi-contour design with 12-way electric adjustments, including lumbar support and seat memory functions (up to three presets). The rear seats, while less adjustable, offer reclining functionality and optional ventilation for extended comfort.

    Materials play a critical role in defining the cabin’s ambiance:

  • Standard trims utilize soft-touch plastics and stitch-stitched leather (available in colors like Black, Grey, or Light Grey).
  • Higher trims introduce Nappa leather (full-grain or perforated) and Alcantara for headliner and door panels, enhancing tactile appeal.
  • AMG Line models incorporate sport-specific materials, such as contrasting stitching, aluminum pedals, and carbon-fiber accents.

    • The driver’s position is optimized for ergonomic reach, with the steering wheel adjustable telescopically and rake-adjustable (up to 15° tilt). The pedal layout ensures precise control, while the center console integrates the COMAND infotainment system and control dials for climate and media functions. The rear center console includes USB ports, a 12V outlet, and optional cupholders, catering to rear passengers.

    Available Interior Trim Options

    The CLS 350 offers three primary interior trims, each with distinct features catering to luxury, sportiness, or technology-focused preferences. Below is a comparative table:
    Feature Executive Trim Sport Trim AMG Line Trim
    Ambient Lighting Indirect LED lighting with color options (White, Blue, or Red) Dynamic ambient lighting (synced with driving modes) Full-color LED lighting with AMG logo projection
    Head-Up Display (HUD) Standard (speed, navigation, and warning icons) Standard with enhanced contrast Standard with AMG-specific graphics (e.g., lap times, gear shifts)
    Premium Sound System 12-speaker Burmester® system (1,000W) 16-speaker Burmester® system (1,200W) with subwoofer 22-speaker Burmester® 3D Sound system (1,800W) with Bang & Olufsen® tuning
    Steering Wheel Leather-wrapped with cruise control and media buttons Sport leather with paddle shifters and AMG badge Flat-bottom, perforated leather with AMG-specific buttons (e.g., launch control, track mode)
    Seating Materials Leather or Alcantara headliner Perforated leather with sport stitching Full-grain Nappa leather with contrasting carbon-fiber or aluminum accents
    Driver-Assistance Display Standard digital instrument cluster (10.25-inch) Standard with sport-tuned graphics AMG-specific digital gauge cluster with performance metrics (e.g., g-force, torque vectoring)
    Note: Higher trims often include quilted leather upholstery, heated/ventilated front seats, and panoramic sunroofs as standard or optional features.

    Infotainment Systems Across Model Years

    The CLS 350’s infotainment system has evolved significantly, reflecting advancements in software, screen technology, and connectivity. Below is a year-by-year comparison of key models (2018–2023):
    Year Screen Size (Infotainment) Software Version Apple CarPlay/Android Auto Available Upgrades
    2018–2020 7-inch or 10.25-inch touchscreen (COMAND) Mercedes-Benz MBUX (1st Generation) Wireless Apple CarPlay (2020+), wired Android Auto
    • MBUX Hyperscreen (optional 56-inch curved display, 2020+)
    • Voice Control (natural language processing)
    • Augmented Reality Navigation (3D maps)
    2021–2023 10.25-inch or 12.3-inch touchscreen (MBUX 2.0) Mercedes-Benz MBUX 2.0 (with AI assistant "Hey Mercedes") Wireless CarPlay/Android Auto (standard)
    • MBUX Hyperscreen 2.0 (56-inch, 2022+ with 3D rear-seat entertainment)
    • Augmented Reality Traffic Signs (real-time updates)
    • Over-the-Air (OTA) Updates for software improvements
    Key Software Enhancements in MBUX 2.0:
  • Personalized interfaces (adapts to driver habits).
  • Predictive navigation (anticipates routes based on time/location).
  • Augmented Reality (AR) parking assist (displays obstacles via camera).
  • Voice-controlled shortcuts (e.g., "Set destination to my favorite restaurant").

    • Note: The 2023 facelift models introduced MBUX 3.0, featuring improved voice recognition, expanded AR navigation, and seamless integration with Mercedes-Benz’s digital ecosystem.

    Driver-Assistance Features and Availability

    The CLS 350 integrates standard and optional driver-assistance systems to enhance safety and convenience. Below is a categorized breakdown of features, including their standard/optional status:
    Category Feature Standard/Optional Key Functions
    Collision Avoidance Active Brake Assist (ABA) Standard Automatic emergency braking for pedestrians, vehicles, and cyclists (up to 50 km/h).

    Exterior Design & Styling Evolution of the Mercedes-Benz CLS-Class (C238) 350

    The Mercedes-Benz CLS-Class (C238) 350 represents a pinnacle of automotive design, blending futuristic aesthetics with timeless elegance. Its exterior embodies the Sense of Space design language introduced by Mercedes-Benz, characterized by dynamic proportions, fluid curves, and a commanding presence. The C238 generation refined this philosophy, incorporating advanced lighting technology, sculpted bodywork, and AMG-specific styling cues that distinguish it from its predecessors. This evolution reflects a seamless fusion of luxury, performance, and technological sophistication, with each generation introducing distinct refinements in aerodynamics, visual identity, and customization options.

    Design Language and Key Exterior Elements

    The CLS-Class (C238) adopts a sculptural, four-door coupe silhouette with a low-slung roofline, emphasizing a sporty yet luxurious stance. Key exterior elements include:

    - Front Grille and Fascia: The grille features a three-dimensional, honeycomb structure, flanked by LED daytime running lights (DRLs) integrated into the kidney-shaped LED headlights. The CLS 350’s grille is slightly narrower than AMG variants, maintaining a refined yet aggressive appearance. The Mercedes-Benz emblem is centrally positioned, with the AMG badge placed on the sides of the grille for non-AMG models or integrated into the grille for AMG versions.

    - LED Lighting Technology: The CLS 350 introduces adaptive bi-xenon headlights with LED low-beam and high-beam modules, offering cornering light and dynamic turn signals. The taillights incorporate LED signature lighting, with a three-dimensional design featuring a central LED band and dynamic turn signals that extend outward for enhanced visibility.

    - Wheel Designs: The CLS 350 offers a range of 18-inch to 21-inch wheel options, including:

  • Standard Alloys: Five-spoke designs with painted or machined finishes, such as the 18-inch "Mercedes-Benz" alloy or 19-inch "AMG" alloy.
  • AMG-Specific Wheels: Forged five-spoke alloys with five-point star motifs, available in 19-inch, 20-inch, or 21-inch sizes, featuring black or silver finishes and polished or brushed surfaces.
  • Special Editions: Exclusive wheel designs for limited-edition models, such as the CLS 350 "Night Edition" with 20-inch black-painted five-spoke alloys or the CLS 63 AMG "Edition 1" with 21-inch forged wheels.

    • - AMG Badge Placement: The AMG badge is strategically positioned:

  • Non-AMG Models: Side-mounted on the C-pillar, maintaining a discreet yet identifiable presence.
  • AMG Models: Integrated into the front grille or rear spoiler, reinforcing the performance-oriented identity.

    • Timeline of Exterior Design Changes Across CLS Generations

    The CLS-Class has undergone significant exterior transformations since its debut, with each generation introducing distinct styling cues and technological advancements. Below is a comparative timeline focusing on the CLS 350’s unique features:
    GenerationModel YearsKey Exterior Design ChangesCLS 350-Specific Features
    C2182004–2010- Coupe-based silhouette with a long hood and short rear deck.
    - Chrome grille with a horizontal bar motif.
    - Halogen headlights with adaptive bi-xenon (optional).
    - Tailgate design with a single-line LED strip.
    - Wheel options: 17–18-inch alloys.    		N/A (CLS 350 introduced in C238)
    C2382010–2017- Four-door coupe body style with a lower roofline and sculpted flanks.
    - LED DRLs integrated into the kidney-shaped headlights.
    - Adaptive bi-xenon headlights with LED high-beam modules.
    - Tailgate design featuring three-dimensional LED taillights.
    - Wheel options: 18–21-inch alloys, including AMG-specific forged wheels.    		- Bi-xenon LED headlights (standard on CLS 350).
    - Tailgate with integrated brake lights and turn signals.
    - AMG badge integration on grille (for AMG models).
    Notable Evolutionary Leaps:
  • The C238 generation abandoned the traditional sedan-based design in favor of a coupe-like aesthetic, reducing drag coefficients to as low as 0.24 Cd (aerodynamic efficiency).
  • The transition from halogen to LED lighting improved visibility and reduced energy consumption.
  • The tailgate design evolved from a simple LED strip (C218) to a multi-functional LED cluster (C238), enhancing rear visibility and styling.

    • Exterior Color Options for the CLS 350

    The CLS 350 offers a diverse palette of exterior colors, including standard metallic, two-tone, and special edition finishes, tailored to personalization preferences. Key options include:

    - Standard Metallic Colors:

  • Silver Metallic
  • Gray Metallic
  • Black Metallic
  • White Metallic
  • Red Metallic (limited availability)

    • - Two-Tone Options:

  • Roof Contrast: Available in black, gray, or red for a two-tone effect with the base color.
  • Mirror Contrast: Black or silver mirrors to complement the body color.

    • - Special Edition Colors:

  • "Night Edition": Deep black with red accents (exclusive to limited runs).
  • "AMG Edition": Anthracite Gray Metallic with black accents (for AMG models).
  • "Edition 1": Black with silver AMG badging (high-performance variant).

    • Customization Notes:

  • Color availability varied by market and model year, with special editions often featuring exclusive finishes.
  • Two-tone options were primarily offered on higher trim levels, including the CLS 350 4MATIC.

    • Wheel Options and Design Analysis

    The CLS 350’s wheel selection reflects its performance-oriented yet luxurious positioning, with options ranging from standard alloys to AMG-exclusive forged designs. Key features include:

    - Standard Wheel Sizes and Finishes:

  • 18-inch Alloys: Five-spoke design with painted or machined finishes (e.g., Mercedes-Benz "MBTX" style).
  • 19-inch Alloys: AMG-inspired five-spoke alloys with black or silver finishes, often featuring polished centers.
  • 20-inch Alloys: Lightweight forged wheels with five-point star motifs, available in black or silver.

    • - AMG-Specific Wheel Designs:

  • 19-inch AMG Wheels: Five-spoke forged alloys with aggressive side vents and polished surfaces.
  • 20-inch AMG Wheels: 20x8.5-inch forged designs with black or silver finishes, optimized for high-performance handling.
  • 21-inch AMG Wheels: Exclusive to AMG models, featuring deep-dish designs with vented brake cooling.

    • - Special Edition Wheels:

  • CLS 350 "Night Edition": 20-inch black-painted five-spoke alloys with red brake calipers.
  • CLS 63 AMG "Edition 1": 21-inch forged wheels with silver AMG badging.

    • Design Philosophy:

  • Aerodynamic Efficiency: Larger wheel sizes (20–21 inches) reduce drag coefficients while improving track performance.
  • Visual Impact: AMG wheels feature aggressive styling cues, such as vented brake ducts and high-gloss finishes, reinforcing the high-performance identity.
    • The CLS 350’s coupe and sedan body styles (though the C238 is exclusively a coupe) represent a bold departure from traditional four-door sedans, prioritizing aerodynamics and sporty proportions. The

    The Mercedes-Benz CLS-Class C238 350 stands as a testament to Mercedes-Benz’s ability to merge performance, luxury, and innovation into a cohesive driving experience. Its refined powertrain, adaptable suspension, and thoughtfully designed interior establish it as a frontrunner in the executive sedan segment. By examining its technical specifications, aerodynamic advancements, and bespoke customization options, drivers gain a comprehensive understanding of why the CLS 350 remains a benchmark for sophistication and capability. This model not only meets but redefines expectations for modern luxury vehicles, offering a harmonious blend of power, comfort, and style.

    FAQ

    What is the price of a Mercedes-Benz CLS 350 in Sri Lanka?

    The Mercedes-Benz CLS-Class (W205) 350 model in Sri Lanka typically ranges from Rs. 120–140 million (approx. $350,000–$400,000) for a used 2018–2021 model, depending on mileage and condition. New models (if available) would cost significantly more, often exceeding Rs. 200 million+. Prices vary by dealer and import taxes.

    How much does a Mercedes-Benz CLS 350 cost?

    The Mercedes-Benz CLS 350 (C257, 2018–2022) starts at around $65,000–$75,000 USD (ex-showroom, U.S. market) for a new model. Used prices (2–5 years old) range from $45,000–$60,000 USD, depending on mileage and trim level. Prices vary globally due to taxes, market demand, and optional features.

    Does the Mercedes-Benz CLS 350 have an AMG version?

    No, the CLS 350 is not an AMG model. However, Mercedes offers the CLS 580 (AMG) and CLS 63 AMG as higher-performance variants with upgraded engines, suspension, and aesthetics. The CLS 350 uses a standard M256 V6 engine (3.0L twin-turbo) tuned for luxury rather than sport.

    What is the price of a Mercedes-Benz CLS 350 in India?

    The Mercedes-Benz CLS 350 (C257) was never officially sold in India, but used imports (2018–2021) cost between ₹1.8–2.5 crores (~$22,000–$30,000 USD) depending on condition and mileage. New models are unavailable due to high import duties and lack of local demand for this segment.

    What is the Mercedes-Benz CLS 350 CDI?

    The CLS 350 CDI refers to a diesel variant of the CLS-Class, powered by Mercedes’ OM654 V6 diesel engine (3.0L) producing around 265–299 hp and 450–550 lb-ft of torque. It was offered in older generations (e.g., W219, 2011–2017) but discontinued in the C257 (2018–2022) lineup, which focused on gasoline engines.

    What is the Mercedes-Benz CLS 350d?

    The CLS 350d is the diesel version of the CLS-Class, featuring a 3.0L inline-6 diesel engine (OM654) producing 265–299 hp and 450–550 lb-ft of torque. It was available in earlier models (e.g., W219, 2011–2017) but not in the current C257 (2018–2022), where "350" refers to a gasoline-only V6 (M256) with no diesel option.

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