2002-2005 Mercedes-Benz S-class Long (V220 facelift ) S 350 V6 (245 Hp) 4MATIC 5G-TRONIC

The Mercedes-Benz S 350 4MATIC, produced between 2002 and 2005, represented a compelling blend of luxury, performance, and all-weather capability within the W220 S-Class “Long” wheelbase range. This variant, powered by a 3.7-liter V6 engine and paired with a 5G-TRONIC automatic transmission, occupied a middle ground in the S-Class lineup, offering a more accessible entry point to the flagship sedan experience compared to the V8-powered S 430 or the high-performance S 55 AMG. The “Long” designation indicated an extended wheelbase, prioritizing rear passenger comfort, a feature particularly valued in markets outside of North America.

Technical Specifications

INTRODUCTION

The S 350 4MATIC, introduced as part of the facelifted W220 series in 2002, built upon the already sophisticated foundation of the S-Class. The W220, launched in 1998, had established Mercedes-Benz’s reputation for technological innovation and luxurious appointments. The 2002 facelift brought subtle styling revisions, improved safety features, and refinements to the engine range. The S 350 4MATIC specifically targeted buyers who desired the prestige of an S-Class, the security of all-wheel drive, and a more economical engine option than the larger displacement V8s. It was positioned as a practical yet luxurious choice for both owner-drivers and those chauffeured in the rear.

Powertrain & Engine Architecture

At the heart of the S 350 4MATIC lay the M112 E 37 engine, a 3.7-liter naturally aspirated V6. This engine, part of Mercedes-Benz’s modular V-engine family, featured a 60-degree V-angle and three valves per cylinder (two intake, one exhaust). The M112 utilized a multi-port fuel injection system and a relatively high 10:1 compression ratio for the time. The engine code, 112.975, identifies specific variations within the M112 family. Power output was rated at 245 horsepower at 5700 rpm and 350 Nm (258 lb-ft) of torque at 3000 rpm. This power was delivered to all four wheels via Mercedes-Benz’s 5G-TRONIC automatic transmission, a five-speed unit known for its smooth shifting and adaptive learning capabilities. The 4MATIC system employed a permanent all-wheel-drive configuration, distributing power between the front and rear axles for enhanced traction and stability, particularly in adverse weather conditions.

Driving Characteristics

The S 350 4MATIC offered a refined and comfortable driving experience, prioritizing smoothness and quietness over outright performance. Acceleration from 0-60 mph took approximately 7.5 seconds, respectable for a large luxury sedan of its era, but noticeably slower than the S 430 or S 55 AMG. The 5G-TRONIC transmission was programmed for relaxed cruising, with gear changes often imperceptible. While it offered a manual shift mode, it wasn’t geared towards sporty driving. The all-wheel-drive system provided confident handling in all conditions, minimizing wheelspin and maximizing grip. The long wheelbase contributed to a stable and composed ride, effectively absorbing road imperfections. Compared to the more powerful S-Class variants, the S 350 4MATIC felt less urgent in its acceleration, but its fuel economy was significantly better.

Equipment & Trim Levels

The S 350 4MATIC came standard with a comprehensive array of luxury features, befitting its flagship status. These included leather upholstery, wood trim, automatic climate control, power-adjustable front seats with memory function, a premium sound system, and a multi-function steering wheel. Standard safety equipment included ABS, traction control, and a suite of airbags. Optional extras were plentiful, including a sunroof, navigation system, rear seat entertainment, massaging seats, and upgraded leather options. The “Long” wheelbase version specifically offered increased rear legroom, making it a popular choice for those who frequently traveled with passengers in the back.

Chassis & Braking

The S 350 4MATIC utilized a fully independent suspension system, with multi-link setups at both the front and rear. This configuration provided a comfortable ride and precise handling. The suspension was tuned for a balance between comfort and control, prioritizing a smooth ride over aggressive cornering. Braking duties were handled by disc brakes on all four wheels, coupled with ABS (Anti-lock Braking System) and Electronic Brakeforce Distribution (EBD). The braking system provided ample stopping power, although the weight of the vehicle required a firm pedal input.

Market Reception & Comparison

The S 350 4MATIC was generally well-received by automotive critics. It was praised for its comfortable ride, luxurious interior, and the added security of all-wheel drive. However, some reviewers noted that its performance was not as exhilarating as that of the V8-powered models. Compared to the S 430, the S 350 4MATIC offered better fuel economy but less power. Against the S 55 AMG, the S 350 4MATIC represented a more sensible and affordable option, sacrificing outright performance for everyday usability. Its fuel consumption, averaging around 19.8 US mpg combined, was competitive for a luxury sedan of its size.

Legacy

The M112 V6 engine, while not known for being a high-strung performance unit, proved to be a reliable and durable powerplant. The 5G-TRONIC transmission, when properly maintained, also demonstrated good longevity. Today, the S 350 4MATIC represents a relatively affordable entry point into S-Class ownership. While maintenance costs can be higher than those of more mainstream vehicles, the S-Class’s reputation for quality and durability ensures that well-maintained examples continue to command respect in the used car market. The combination of luxury, comfort, and all-wheel-drive capability makes it a desirable choice for buyers seeking a sophisticated and capable grand tourer.