2012-2014 Mercedes-Benz CLS Shooting Brake (X218) AMG CLS 63 V8 (585 Hp) S-Modell 4MATIC SPEEDSHIFT Sport

The Mercedes-Benz CLS 63 AMG S-Model 4MATIC, produced between 2012 and 2014 as part of the X218 CLS Shooting Brake generation, represented the pinnacle of performance within the CLS lineup. This variant combined the practicality of a station wagon (estate) body style with the ferocious power of Mercedes-AMG’s 5.5-liter twin-turbocharged V8 engine. Positioned as the top-tier offering, the CLS 63 S-Model 4MATIC catered to buyers seeking uncompromising performance, luxurious appointments, and all-weather capability. It was a direct response to demand for a more potent and capable version of the already well-received CLS Shooting Brake.

Technical Specifications

INTRODUCTION

The X218 CLS Shooting Brake, introduced in 2012, was a unique offering from Mercedes-Benz, blending the elegant lines of the CLS four-door coupe with the practicality of a station wagon. The AMG CLS 63 S-Model 4MATIC represented the performance apex of this body style. Built on the M278 engine platform, it delivered exhilarating acceleration and a refined driving experience. The “S-Model” designation indicated an increase in power and performance over the standard CLS 63 AMG, while the 4MATIC all-wheel-drive system provided enhanced traction and stability. This model aimed to appeal to enthusiasts who desired a high-performance vehicle capable of comfortably accommodating passengers and cargo.

Powertrain & Engine Architecture

At the heart of the CLS 63 S-Model 4MATIC lies the M157.981 5.5-liter V8 engine. This engine is characterized by its twin-turbocharger setup, direct fuel injection, and an aluminum engine block. The engine produces 585 horsepower at 5500 rpm and a substantial 800 Nm (590 lb-ft) of torque available from 1750 to 5000 rpm. The direct injection system precisely meters fuel into the combustion chambers, optimizing combustion efficiency and power output. The engine also features cylinder deactivation, which shuts down cylinders under light load conditions to improve fuel economy. The SPEEDSHIFT 7G-TRONIC automatic transmission, specifically tuned for AMG performance, provides quick and smooth gear changes. This transmission features a sport mode and paddle shifters for manual control.

Driving Characteristics

The CLS 63 S-Model 4MATIC delivers a truly impressive driving experience. The combination of the powerful V8 engine and the 4MATIC all-wheel-drive system results in blistering acceleration – 0 to 60 mph in approximately 3.5 seconds. The 7-speed automatic transmission is well-matched to the engine’s powerband, providing seamless shifts and responsive performance. While the 4MATIC system prioritizes rear-wheel drive for a more engaging driving feel, it seamlessly distributes power to the front wheels when traction is needed. Compared to the standard CLS 63, the S-Model offers a noticeably more aggressive throttle response and a more focused driving experience. The suspension is tuned for performance, providing a firm but controlled ride.

Equipment & Trim Levels

The CLS 63 S-Model 4MATIC came standard with a comprehensive list of luxury and performance features. Interior appointments included premium leather upholstery, AMG sport seats, and carbon fiber trim. Standard technology included a high-resolution infotainment system with navigation, a premium sound system, and a suite of driver-assistance features such as adaptive cruise control, lane-keeping assist, and blind-spot monitoring. Optional extras included a panoramic sunroof, upgraded leather options, and a rear-seat entertainment system. The S-Model also featured unique exterior styling cues, such as AMG-specific body styling, larger wheels, and red brake calipers.

Chassis & Braking

The CLS 63 S-Model 4MATIC features a sophisticated chassis designed to handle the engine’s immense power. The front suspension utilizes a McPherson strut design with coil springs and an anti-roll bar, while the rear suspension employs a multi-link setup. This configuration provides a balance of comfort and handling precision. The braking system consists of ventilated discs on all four wheels, with large calipers providing ample stopping power. The AMG braking system, often included as an option, featured even larger rotors and calipers for enhanced performance. The 4MATIC all-wheel-drive system utilizes a multi-plate clutch to distribute power between the front and rear axles, optimizing traction in various driving conditions.

Market Reception & Comparison

The CLS 63 S-Model 4MATIC was generally well-received by automotive critics. Reviewers praised its exceptional performance, luxurious interior, and unique blend of practicality and style. Compared to other high-performance station wagons of the time, such as the Audi RS6 Avant, the CLS 63 S-Model 4MATIC offered a more luxurious and refined driving experience, albeit with slightly less outright performance. Fuel economy, as expected for a vehicle of this caliber, was relatively poor, averaging around 22.2 US mpg in combined driving. Reliability was generally good, although the complex twin-turbocharged engine and advanced technology could potentially lead to higher maintenance costs.

Legacy

The CLS 63 S-Model 4MATIC remains a desirable vehicle in the used car market today. Its combination of performance, luxury, and practicality makes it a compelling option for enthusiasts seeking a unique and capable grand tourer. The M157 engine, while complex, has proven to be relatively durable when properly maintained. However, potential buyers should be aware of the potential for costly repairs associated with the turbochargers and other engine components. The X218 CLS Shooting Brake, and particularly the 63 S-Model, helped to establish a niche market for high-performance station wagons, influencing subsequent models from other manufacturers.