2007-2008 Mercedes-Benz E-class (W211 facelift ) E 350 CGI (292 Hp) 7G-TRONIC

The Mercedes-Benz E 350 CGI, produced from September 2007 through December 2008, represents a significant iteration of the W211 E-Class facelift. Positioned as a mid-to-upper trim level, this variant combined a naturally aspirated 3.5-liter V6 engine with Mercedes’ 7G-TRONIC seven-speed automatic transmission. It aimed to deliver a balance of performance and refinement, appealing to buyers seeking a comfortable and capable luxury sedan. The “CGI” designation signified the use of direct injection technology, enhancing both power and fuel efficiency compared to earlier W211 models. This version was a key part of the W211’s final years, bridging the gap to the fully redesigned W212 generation.

Technical Specifications

Brand Mercedes-Benz
Model E-class
Generation E-class (W211, facelift 2006)
Type (Engine) E 350 CGI (292 Hp) 7G-TRONIC
Start of production September, 2007
End of production December, 2008
Powertrain Architecture Internal Combustion engine
Body type Sedan
Seats 5
Doors 4
Fuel consumption (urban) 13-13.5 l/100 km (18.1 – 17.4 US mpg, 21.7 – 20.9 UK mpg, 7.7 – 7.4 km/l)
Fuel consumption (extra urban) 6.3-6.7 l/100 km (37.3 – 35.1 US mpg, 44.8 – 42.2 UK mpg, 15.9 – 14.9 km/l)
Fuel consumption (combined) 8.7-9.2 l/100 km (27 – 25.6 US mpg, 32.5 – 30.7 UK mpg, 11.5 – 10.9 km/l)
Fuel Type Petrol (Gasoline)
Acceleration 0 – 100 km/h 6.8 sec
Acceleration 0 – 62 mph 6.8 sec
Acceleration 0 – 60 mph 6.5 sec
Maximum speed 250 km/h (155.34 mph) – Electronically limited
Weight-to-power ratio 5.8 kg/Hp, 172.8 Hp/tonne
Weight-to-torque ratio 4.6 kg/Nm, 216 Nm/tonne
Power 292 Hp @ 6400 rpm
Power per litre 83.5 Hp/l
Torque 365 Nm @ 3000-5100 rpm (269.21 lb.-ft. @ 3000-5100 rpm)
Engine layout Front, Longitudinal
Engine Model/Code M 272.985
Engine displacement 3498 cm3 (213.46 cu. in.)
Number of cylinders 6
Engine configuration V-engine
Cylinder Bore 92.9 mm (3.66 in.)
Piston Stroke 86 mm (3.39 in.)
Compression ratio 12.2:1
Number of valves per cylinder 4
Fuel injection system Direct injection
Engine aspiration Naturally aspirated engine
Valvetrain DOHC
Engine oil capacity 8 l (8.45 US qt | 7.04 UK qt)
Coolant 12 l (12.68 US qt | 10.56 UK qt)
Kerb Weight 1690 kg (3725.81 lbs.)
Max. weight 2215 kg (4883.24 lbs.)
Max load 525 kg (1157.43 lbs.)
Fuel tank capacity 80 l (21.13 US gal | 17.6 UK gal)
Length 4856 mm (191.18 in.)
Width 1822 mm (71.73 in.)
Height 1484 mm (58.43 in.)
Wheelbase 2854 mm (112.36 in.)
Front track 1559 mm (61.38 in.)
Rear track 1552 mm (61.1 in.)
Drivetrain Architecture Rear wheel drive
Drive wheel Rear wheel drive
Number of gears 7 gears, automatic transmission G-TRONIC
Front suspension Independent, type McPherson with coil spring and anti-roll bar
Rear suspension Independent multi-link spring suspension with stabilizer
Front brakes Ventilated discs
Rear brakes Ventilated discs
Assisting systems ABS (Anti-lock braking system)
Steering type Steering rack and pinion
Power steering Hydraulic Steering
Tires size 225/55 R16
Wheel rims size 7.5J x 16

INTRODUCTION

The W211 Mercedes-Benz E-Class, produced from 2002 to 2009, underwent a significant facelift in 2006, addressing criticisms of the original design and incorporating updated technology. The E 350 CGI, introduced in 2007, was a key component of this revised lineup. It represented a move towards more efficient engine technology with the adoption of direct injection. The E 350 CGI slotted into the range above the E 300 and below the more powerful E 500 models, offering a compelling blend of performance, luxury, and fuel economy for the discerning buyer. It was primarily sold in European and North American markets, competing with BMW’s 5 Series and Audi’s A6.

Powertrain & Engine Architecture

At the heart of the E 350 CGI lies the M272.985 3.5-liter V6 engine. This engine is a naturally aspirated, 60-degree V-engine featuring all-aluminum construction. The “CGI” designation stands for “Charged Gasoline Injection,” indicating the use of direct fuel injection. This system injects fuel directly into the combustion chamber, allowing for more precise fuel control, improved combustion efficiency, and increased power output. The M272 engine utilizes a dual overhead camshaft (DOHC) valvetrain with four valves per cylinder. The 7G-TRONIC automatic transmission, a seven-speed unit, was standard. This transmission offered smooth and responsive shifting, contributing to both performance and fuel efficiency. It featured a torque converter lock-up clutch to minimize slippage and improve efficiency at cruising speeds. The transmission’s gear ratios were optimized for both acceleration and highway cruising.

Driving Characteristics

The E 350 CGI with the 7G-TRONIC transmission delivered a refined and comfortable driving experience. While not as overtly sporty as some of its competitors, it offered ample power for everyday driving and confident passing maneuvers. The 292 horsepower and 269 lb-ft of torque provided brisk acceleration, with a 0-60 mph time of around 6.5 seconds. The 7G-TRONIC transmission contributed to smooth gear changes, minimizing disruptions to the driving experience. Compared to the E 300, the E 350 CGI offered noticeably more power and responsiveness. However, it lacked the outright performance of the E 500, which featured a larger V8 engine. The automatic transmission, while smooth, didn’t offer the same level of driver engagement as a manual gearbox, which wasn’t available with this engine.

Equipment & Trim Levels

The E 350 CGI typically came well-equipped with standard features including leather upholstery, automatic climate control, a premium sound system, and power-adjustable front seats. Optional extras included a navigation system, a sunroof, heated and ventilated seats, and advanced driver-assistance systems such as Distronic adaptive cruise control. Interior trim options ranged from wood veneers to aluminum accents, allowing buyers to personalize the cabin to their preferences. The standard dashboard configuration featured analog gauges with a multi-function display. The E 350 CGI often served as a platform for higher trim packages, allowing buyers to add a significant number of luxury features.

Chassis & Braking

The W211 E-Class featured an independent suspension system at all four corners. The front suspension utilized a McPherson strut design with coil springs and an anti-roll bar, while the rear suspension employed a multi-link setup, also with coil springs and a stabilizer bar. This suspension configuration provided a comfortable ride while maintaining good handling characteristics. The E 350 CGI was equipped with ventilated disc brakes on all four wheels, providing ample stopping power. Anti-lock braking system (ABS) was standard, enhancing safety and stability during emergency braking situations. The steering system was a rack-and-pinion setup with hydraulic power assistance, offering precise and responsive steering feel.

Market Reception & Comparison

The E 350 CGI was generally well-received by automotive critics. It was praised for its refined engine, smooth transmission, and comfortable ride. Fuel economy was considered respectable for a vehicle in its class, thanks to the direct injection technology. However, some critics noted that the interior design, while luxurious, was beginning to show its age compared to newer competitors. Compared to the E 300, the E 350 CGI offered a significant performance upgrade without the higher price tag of the E 500. In terms of reliability, the M272 engine proved to be generally robust, although some owners reported issues with the balance shaft, which could lead to engine noise.

Legacy

The E 350 CGI represents a transitional point in the W211 E-Class’s lifecycle. It showcased Mercedes-Benz’s commitment to improving fuel efficiency through the adoption of direct injection technology. Today, the W211 E 350 CGI can be found on the used car market at relatively affordable prices. While maintenance costs can be higher than for some other vehicles in its class, the M272 engine is generally considered reliable if properly maintained. The 7G-TRONIC transmission is also known for its durability. The E 350 CGI remains a popular choice for buyers seeking a comfortable, well-equipped, and relatively affordable luxury sedan.

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