The 2012 Mercedes-Benz CLS-Class marked a significant evolution of a vehicle that essentially pioneered a new automotive category: the four-door coupe. This model year represents the first major redesign of the CLS, a car that daringly blended the seductive aesthetics and dynamic spirit of a coupe with the practicality and comfort of a sedan. In a constantly evolving and fiercely competitive automotive landscape, the CLS carved out its niche, offering a unique proposition that resonated with drivers seeking both style and substance.
A Legacy of Coupe Design at Mercedes-Benz
Mercedes-Benz boasts a rich and storied history of crafting iconic coupe models. While the legendary 300SL “Gullwing” of the 1950s often takes center stage, the brand’s coupe lineage extends much further back. Preceding the Gullwing were notable coupes like the 1936 Type 380 and the sophisticated 300S from the early 1950s, each embodying elegance and performance in their era.
Even earlier, certain four-door Mercedes-Benz models from the 1930s hinted at the future CLS silhouette. Cars like the long-wheelbase 200 and 290 “Streamliners” possessed coupe-like profiles, foreshadowing the design philosophy that would later define the CLS. From the 220S “Ponton” onward in 1956, a captivating series of Mercedes-Benz coupes, derived from the E-Class and S-Class sedans, graced the roads for decades. These models collectively paved the way for specialized coupe classes, including the CLK and the larger CL-Class, demonstrating Mercedes-Benz’s enduring commitment to coupe design.
2012 CLS Models and Performance Specs
Upon its US launch in June 2011 as a 2012 model, the Mercedes-Benz CLS line offered two compelling variants, both equipped with advanced biturbo, direct-injection V8 engines.
The CLS550 model featured a 4.6-liter V8 engine, delivering a robust 402 horsepower and 443 lb-ft of torque. This engine provided ample power for both relaxed cruising and spirited driving.
For those seeking even greater performance, the CLS63 AMG model was the answer. It housed a 5.5-liter version of the new V8, tuned by AMG to produce an exhilarating 518 horsepower and 516 lb.-ft of torque. This high-performance variant offered a significantly more dynamic driving experience.
Both CLS models came standard with seven-speed automatic transmissions. However, the CLS63 AMG distinguished itself with an AMG MCT (Multi-Clutch Technology) sports transmission. This innovative transmission replaced the traditional torque converter with a start-up clutch, providing the direct responsiveness of a manual transmission combined with the convenience of an automatic. The MCT transmission offered enhanced driver engagement and quicker gear changes, perfectly complementing the AMG’s performance focus.
Mercedes-Benz prioritized safety in the 2012 CLS, equipping both models with a comprehensive suite of standard safety technologies. This included:
- PRE-SAFE: Mercedes-Benz’s anticipatory safety system.
- ABS anti-lock brakes with Brake Assist: Ensuring optimal braking performance.
- ATTENTION ASSIST: Driver drowsiness detection system.
- Traction control and ESP electronic stability control: Enhancing vehicle stability and control in various driving conditions.
Optional advanced driver assistance systems were also available, including:
- DISTRONIC PLUS with PRE-SAFE Brake: Adaptive cruise control with enhanced braking capabilities.
- Active Blind Spot Assist: Warning drivers of vehicles in their blind spots.
- Active Lane Keeping Assist: Helping drivers stay within their lane.
Exterior Design: Sweeping Lines and Aerodynamic Efficiency
The 2012 CLS showcased refined proportions, featuring a more assertive front-end design and a sportier overall stance. Its sculpted form was defined by a flowing, coupe-like silhouette, exuding both dynamism and elegance. The graceful roofline seamlessly merged into the C-pillar, creating a continuous arc that spanned the length of the vehicle. The interplay of taut lines and rounded surfaces, a signature of contemporary Mercedes-Benz design, was particularly evident in the CLS’s profile, sculpted rear fenders, and elongated overhangs.
Aerodynamics played a crucial role in the CLS design. The 2012 model achieved an impressive drag coefficient of 0.28, a notable improvement over its predecessor. This was accomplished through a combination of factors:
- Sleek body shape
- Underbody paneling
- Optimized outside mirror housings
- Refined front and rear apron and trunk lid contours
Mercedes-Benz engineers even utilized advanced wind tunnel testing, incorporating rotating wheels on conveyor belts to simulate real-world driving conditions. This allowed them to fine-tune underbody paneling and wheel spoilers for optimal aerodynamic performance.
AMG-Specific Exterior Elements
The CLS63 AMG was visually differentiated by several distinctive AMG styling cues:
- Aggressive front apron: Featuring prominent side air vents with black grilles and LED daytime running lights.
- Unique front grille: Incorporating a large Mercedes-Benz star and a single lamella grille slat with a black accent.
- Rear lip spoiler: Integrated into the trunk lid to reduce lift at high speeds.
- Black air diffuser: Positioned between the quad exhaust tips.
Advanced Lighting Technology
The 2012 CLS incorporated cutting-edge lighting technology for enhanced visibility and safety:
- Bi-Xenon HID Headlights (Standard): Providing superior nighttime illumination compared to halogen lights. These headlights featured self-leveling beams for consistent aim.
- Full LED Headlights (Optional): A world-first for Mercedes-Benz at the time. These offered exceptional white light, energy efficiency, and longevity. Integrated fans and circulated warm air prevented overheating and aided in defrosting.
- Active Curve Illumination: Headlights that turned up to 15 degrees with the steering wheel, improving visibility around corners by approximately 80 feet.
- Cornering Lights: Separate lights that activated at low speeds when turning or using the turn signal, illuminating the area to the side of the vehicle.
- Adaptive Highbeam Assist: Using a windshield-mounted camera to automatically adjust between high and low beams to avoid blinding other drivers, offering a variable headlight range up to 1,000 feet.
- Rear LED Lights: LED taillights, turn signals, brake lights, and side markers for enhanced visibility and quicker response times.
Aerodynamic and Functional Details
Small but significant details contributed to both the CLS’s aerodynamics and functionality:
- Aero Wipers: One-piece wiper blades with integrated leaf springs and aero spoilers, providing better wiping performance, reduced wind resistance, and less icing in cold weather. A rain sensor automatically adjusted wiper speed. Heated wiper arm resting positions and electrically heated windshield washer nozzles further enhanced cold-weather performance.
- Headlight Washing System: High-pressure jet washers cleaned headlight lenses via telescoping arms with twin nozzles.
- Free-Standing Mirrors: Motorsports-inspired free-standing outside mirrors with integrated turn signal indicators. Models equipped with Blind Spot Assist also included a warning triangle in the mirror. Mirrors were auto-dimming and heated.
Interior Design: Flowing Lines and Premium Materials
The fluid exterior lines of the 2012 CLS seamlessly transitioned into the interior, creating a cohesive design language. The dashboard and door panels visually flowed towards the rear, and the center console and transmission tunnel gracefully divided the rear seating area.
Increased dimensions translated to a more spacious cabin, particularly in terms of shoulder and elbow room for both front and rear occupants. The rear doors were a notable feature, enhancing accessibility and practicality for a coupe-styled vehicle.
The interior was characterized by premium materials, with extensive use of leather and wood trim. Natural-grain leather and a selection of wood options adorned the dashboard, creating a luxurious ambiance.
Dashboard and Cockpit Design
- Soft-Touch Dashboard: The dashboard featured a soft-touch polyurethane skin for a premium feel and seamless integration of elements like air vents, eliminating visible seams. Sound-dampening and insulation minimized noise intrusion into the cabin.
- Three-Tube Instrument Cluster: A driver-focused instrument cluster with an analog speedometer incorporating a color display, flanked by analog gauges for fuel and temperature, and a tachometer.
- COMAND System Display: A large display for the COMAND infotainment system positioned atop the center console, complemented by an analog clock and air vents.
- Central Controller and Storage: The COMAND rotary push-button controller was located between the seats, along with a double cupholder and a storage compartment with power and connectivity ports.
AMG Interior Appointments
The CLS63 AMG interior received sporty AMG enhancements:
- AMG Door Sill Panels and Sport Pedals: Brushed stainless steel AMG door sill panels and sport pedals with rubber studs.
- AMG Instrument Cluster: A TFT display in the speedometer with AMG-specific menus, including “Warm Up,” “Set Up,” and “RACE” modes, providing performance-related information.
- AMG DRIVE UNIT: A dedicated console unit angled towards the driver, housing controls for transmission modes, ESP, suspension settings, and AMG drive programs.
COMAND Infotainment System
The COMAND system offered a comprehensive suite of features:
- Seven-inch TFT Color Display: For displaying navigation, audio, and vehicle information.
- Audio System: AM/FM/weatherband/satellite/HD digital radio, Bluetooth, MP3 playback, Music Register, PCMCIA card slot, and GPS navigation.
- Six-Disc CD-DVD Player: Connected to the Gracenote database for media information display.
- Navigation System: Hard drive-based navigation with North American maps.
- Optional Rear-View Camera: Displayed the area behind the vehicle on the COMAND screen when reversing, with guide lines for easier parking.
Premium Audio and Climate Control
- harman/kardon Logic 7 Surround Sound (Standard): A high-fidelity audio system with 610-watt amplifiers, 14 speakers, and Dolby Surround 5.1 processing for an immersive listening experience.
- Dual-Zone Climate Control: Independent temperature control for driver and passenger, with sunlight and humidity sensors for automatic adjustments. An activated charcoal filter and automatic air recirculation system enhanced cabin air quality. A sensor-controlled AC compressor optimized fuel efficiency and minimized dry eyes.
Multifunction Steering Wheel and Display
- Power-Adjustable Multifunction Steering Wheel: Equipped with illuminated rocker buttons to control various vehicle functions, including trip computer, audio, phone, and vehicle settings.
- Multifunction Display: Integrated into the instrument cluster, displaying information and menus controlled by the steering wheel buttons.
Seating Comfort and Options
- 14-Way Power Seats (Standard): Included 4-way power lumbar adjustment and memory settings for seat, steering wheel, and mirror positions for up to three drivers. Automatic seat and steering wheel adjustment for easier entry/exit.
- AMG Sport Seats (CLS63 AMG): Nappa leather AMG sport seats with cross-stitching, with matching rear seats.
- Active Ventilated Seats (Optional): Offered as part of the Premium 1 package, providing cooled or warmed airflow through perforated leather upholstery with adjustable fan speeds.
- Multi-Contour Seats (Optional): Driver’s seat with adjustable bolsters and a Drive-Dynamic feature that automatically inflated side bolsters during cornering for enhanced lateral support.
Convenience and Assistance Features
- KEYLESS GO: Keyless entry and start system, allowing unlocking and starting the car with the SmartKey fob in a pocket or bag. Trunk lid auto-open if keys are locked inside.
- Parktronic: Ultrasonic sensors in bumpers to detect obstacles, providing audible and visual warnings.
- Active Parking Assist: Utilizing Parktronic and electric steering assist to automatically steer the vehicle into parallel parking spaces, with driver controlling acceleration and braking.
- Electronic Trunk Closer (Optional): Remote-operated electronic trunk lid opening and closing with safety stop feature.
The 2012 Mercedes-Benz CLS-Class continued to uphold its reputation as a design and engineering marvel, offering a compelling blend of coupe aesthetics, sedan practicality, and Mercedes-Benz luxury and innovation. It solidified its position as a leader in the four-door coupe segment it had pioneered.
