Monday, October 18, 2010

The interiors of the C-Class look like a Mercedes-Benz

INTERIOR FEATURES

Mercedes focused its attention for the improvement on the interior of the C-Class models. Mercedes has redesigned the dashboard, instruments and seats, and materials have been revised throughout.

The interiors of the C-Class look like a Mercedes-Benz. The seats are supportive & excellent: neither so hard that they numb the backside nor so soft that they leave occupants tired or aching. The seats in the standard luxury sedans are more traditional, perhaps richer in appearance, than those in the sport models. Adjustable lumbar support has been added that is more comfort for the lower back.

Seats in the Sedans and C320 Coupe come standard with leather. The C230 Coupe comes with cloth seats with manual fore-aft adjusters. The C55 AMG has its own special sport seats and premium leather upholstery.

All C-Class models are trimmed with good-quality interior materials. The Sport Coupes and Sport Sedans feature aluminum trim throughout the cabin, though the coupes have a lot more ordinary black plastic. The standard Sedans and Wagon feature wood trim.

The C-Class models has replaced the three-gauge instrument cluster a new instrument cluster with four gauges. A chromed-ringed tacho and speedometer of identical size sit front and center. To the left and right of these are smaller fuel and temperature gauges. In the middle sits an LCD display with various system and trip functions. Fashioned in the mold of the E-Class, the new instrument cluster is shared among the coupe, sedan and wagon with minor variations. The cluster is deeply hooded and virtually eliminates glare on the dials. The backlit script is clear and easy to read.

We like the redesigned layout and style of the center stack, which looks more modern than before. Audio controls are now located in what we consider the optimal spot: above the climate control switches, which sit at the bottom of the stack. Both audio and climate knobs are large and easy to locate. Overall, the C-Class switchgear is easy to use and understand, though there are a few exceptions. The stalk controls have a beefy feel with positive detents, but the stalk-mounted cruise control remains problematic. It takes time to master the system. And it's easy to engage the cruise control by mistake when trying to use the turn signals, a complaint we have with every modern Mercedes that comes to mind. On the positive side, buttons on the steering wheel spokes allow the driver to operate the audio and telephone systems and other functions without removing a hand from the wheel. The dash vents have been enlarged, improving airflow in the cabin, important on hot days.

Lighting inside the C-Class is effective, with good illumination for entry in the dark and excellent map lights for reading. The glovebox is a good size, unless you order the CD changer, in which case you lose most of it.

The rear seats in the sedans and wagon offer generous space and comfort. They're installed theater style , and sit slightly higher than those in front, giving back-seat riders a better view forward without significantly compromising headroom. Indeed, the spacious rear seats are one of the C-Class's strengths. The optional power sunshade for the rear glass reinforces the feeling you're in a Benz.

The rear seats in the coupes are comfortable even for small to medium adults, but the sloping roof restricts headroom. The front passenger seat automatically slides forward when the seatback is flipped forward, opening up the rear compartment for entry.

The design of the Coupe offers more cargo utility than the Sedans. The 60/40 split rear seats can be folded effortlessly, with the bottom sections flipped forward or left in place, depending on how much cargo room is needed. With the rear seats in place, the coupe's cargo area offers up 10.2 cubic feet of space, or as much as the trunk in some comparably sized sedans. Yet folding the rear seats down reveals 38.1 cubic feet of space that can be filled with much larger items.

The Sedan's trunk is spacious with 12.2 cubic feet of cargo space. The C240 Wagon offers 25.2 cubic feet of flat-floor load space. Folding the rear seat down creates more than 63 cubic feet of space. With the split rear seat lowered, the wagon presents a load floor measuring 66 inches deep by 35 inches wide, and it's flat for easy sliding. Lighting and tie-downs are provided in the rear hold, along with a 12-volt power point. An emergency tire sealer/inflator is standard instead of a spare, and the wagon comes with a fitted crate hidden under the carpeted cargo floor. The crate can be removed, filled with goods, and then re-stowed out of sight.
DRIVING IMPRESSIONS

Mercedes offer nice steering to all of the C-Class cars, excellent brakes and a good balance between ride and handling. The Coupes and Sport Sedans are more firmly sprung than the standard Sedans and Wagon. The latter are cast in the Mercedes tradition of a smooth ride and responsive steering with good transitional feel, making them utterly competent through the bends.

ENGINE RESPONSE AND SMOOTHNESS also varies by model. The C320 Sedan is smooth and quiet for casual driving, but when you step on it the engine growls to life. The 3.2-liter V6 serves up 215 horsepower, but more important is its torque.

Torque is the force that propels you away stoplights and down freeway ramps, and the C320 has a healthy supply for a car its size. The 3.2-liter V6 is our first choice for the C-Class for its power and overall smoothness. Both the C320s and C240s are flex-fuel vehicles, meaning they are capable of running on E85 ethanol, a popular fuel in the Corn Belt.

The 1.8-liter four-cylinder found in the C230 Sport Sedan and coupe over the 2.6-liter V6 found in the C240 Sedan and Wagon.


 Performance & Efficiency

-2,597 cc 2.6 liters V 6 front engine with 89.9 mm bore, 68.2 mm stroke, 10.5 compression ratio, overhead cam and three valves per cylinder
-Premium unleaded fuel 91
-Fuel economy EPA highway (mpg): 25 and EPA city (mpg): 19
-Multi-point injection fuel system
-16.4 gallon main premium unleaded fuel tank
-Power: 125 kW , 168 HP SAE @ 5,700 rpm; 177 ft lb , 240 Nm @ 4,700 rpm

The 1.8-liter (189 horsepower and 192 pound-feet of torque) surpass those for the 2.6-liter because the four-cylinder engine is supercharged, and its performance is impressive.

C230 COUPE & C230 SPORT SEDAN

Mercedes claims the C230 coupe can sprint from 0 to 60 mph in just 7.2 seconds with the six-speed manual transmission, and 7.5 seconds with the adaptive five-speed automatic.

The automatic works very well in the C320 models, however. It suits the wide power band and extra torque of the bigger V6. It comes with a manual-shift feature, but there's no real need to use it because the five-speed automatic is adaptive: Drive it gently, and it will shift up sooner, rewarding you with smooth acceleration and good gas mileage (20/26 mpg EPA City/Highway). If you're constantly on the throttle, the transmission learns that you like to drive quickly and will hold itself in each gear for more sprightly acceleration. Still, moving the Touch Shift transmission lever into the manual mode allows the driver to manually shift down or up one gear with each click. Hold the lever to the left for more than a second and it shifts all the way down to the lowest appropriate gear for the speed you're traveling. Hold it to the right and it shifts back up to Drive. Stop and it automatically shifts down to first. Accelerate away and it shifts back up to the highest gear selected, a good strategy for using third gear when driving around town. It's a great setup.

Manual transmission: Mercedes has lowered the ratio for first gear for quicker acceleration off the line, but kept an overdrive sixth gear for quiet, low-rev highway cruising for fuel economy. The result is easier, quicker and more precise shifting, and the improved action contributes greatly to a more rewarding, engaging driving experience. Shift effort is low, and the gears are easier to hit.

All C-Class models are reasonably quiet, even when blasting along at 80 mph. Both the sedan and coupe are slippery cars, and very little wind noise penetrates the cabin.

All C-Class cars come with Electronic Brake-force Distribution (EBD) and Brake Assist. EBD can reduce stopping distances and improve stability when braking by distributing brake pressure among the four wheels, giving more to the tires with the best gripping. Brake Assist senses a panic braking situation and helps ensure full braking force even when the driver makes the mistake of relaxing pressure on the brake pedal. The net effect is right-now, no-fuss stopping. In every day use, the C-Class brakes are progressive in pedal feel; in more serious situations, the brakes are enormously powerful. All C-Class models come with anti-lock brakes, which allow the driver to maintain steering control in a panic stop by preventing wheel lock-up.

The available 4MATIC all-wheel-drive system delivers power to all four wheels. It's fully automatic and on all the time, so there are no buttons to push and no special operating instructions to follow. The system uses electronic traction control to vary torque between each of the four wheels, diverting power to the tires with the best grip. Even if three wheels lose traction, 4MATIC can direct power to the one remaining tire with grip. The result is better stability and improved handling in slippery conditions with a greatly reduced chance of getting stuck. Those who drive through harsh winters, all-wheel drive is worth it. All-wheel-drive sedans such as those in the C-Class line are proof that you don't need an SUV to confidently handle rough weather.
COMMENTS

The C230 coupe offers an attractive visual impact and advanced safety technology.

The C240 wagon drives like a sedan and provides 63 cubic feet of cargo space.

The C320 sedan is smooth, powerful and comfortable, and arguably represents the best of the line.

Move to the more powerful, more substantially equipped C320s.

Good stopping power usually means big brakes, and every C-Class model has big brakes.

It's a sports sedan in the extreme sense, capable of amazing acceleration, excellent handling and braking performance on par with exotic sports cars.

Its big V8 engine is smoother, more tractable and less intrusive when a driver is cruising the freeway or just trundling along, and its deep, V8 exhaust note better suits the sportiest C-Class of all.

Its ride is soft, almost cushy, but it's well damped, so there's no bouncing around over dips in the road.

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