2008 Mercedes-Benz E550 Road Test Specs | Edmunds

2008 Mercedes-Benz E-Class - Road Test Specs

2008 Mercedes-Benz E-Class Sedan

(5.5L V8 7-speed Automatic)


Model year2008
Style4dr Sedan (5.5L 8cyl 7A)
Base MSRP$59,700
Options on test vehicleiPod Integration Kit ($425); Voice Control ($510); Premium 1 Package ($2,860 includes navigation system, satellite radio, heated/cooled front seats, power rear sunshade).
As-tested MSRP$63,970


Drive typeRear-wheel drive
Engine typeV8
Displacement (cc/cu-in)5,561cc (333.2 cu-in)
Block/head materialAluminum/aluminum
ValvetrainDouble overhead camshafts, 4 valves per cylinder, variable intake valve timing
Compression ratio (x:1)10.7
Redline (rpm)6,000
Horsepower (hp @ rpm)382 @ 6,000
Torque (lb-ft @ rpm)391 @ 2,800-4,800
Transmission type7-speed Automatic
Transmission and axle ratios (x:1)I = 4.38, II = 2.86, III = 1.92, IV = 1.37, V = 1.00, VI = 0.82, VII = 0.73, R = 3.42, Final Drive = 2.65


Suspension, frontIndependent four-link
Suspension, rearIndependent four-link
Steering typeSpeed-proportional power steering
Steering ratio (x:1)14.7:1
Tire brandMichelin
Tire modelPilot HX MXM4
Tire typeAll season
Tire size, frontP245/40R18
Tire size, rearP265/35R18
Wheel size18 X 8.5 front - 18 X 9.0 rear
Wheel materialCast alloy
Brakes, frontVentilated Disc
Brakes, rearVentilated Disc

Track Test Results

0-45 mph (sec.)3.59
0-60 mph (sec.)5.22
0-75 mph (sec.)7.48
1/4-mile (sec. @ mph)13.42 @ 104.6
Braking, 30-0 mph (ft.)30
60-0 mph (ft.)120
Slalom, 6 x 100 ft. (mph)63.0
Skid pad, 200-ft. diameter (lateral g)0.82
Sound level @ idle (dB)43.6
@ Full throttle (dB)70.8
@ 70 mph cruise (dB)65.8

Test Driver Ratings & Comments

Acceleration commentsLike most Benzes, the E550's best dynamic trait is its acceleration. Launched with minimal wheelspin and ESP off and the E550 runs this number. Wow! It couldn't be easier.
Braking ratingGood
Braking commentsAverage brake feel and response. Effectiveness comes further in the travel than I'd like. First stop was 119 feet, following four were around 127 feet.
Handling ratingAverage
Handling commentsCan't fully disable the stability control, the E550's handling is safe, but hardly engaging. Plus it hates changing direction compared to more athletic rivals.

Testing Conditions

Elevation (ft.)1121
Temperature (°F)57
Wind (mph, direction)3.8

Fuel Consumption

EPA fuel economy (mpg)15 city/ 22 highway
Edmunds observed (mpg)18.4
Fuel tank capacity (U.S. gal.)21.1

Dimensions & Capacities

Curb weight, mfr. claim (lbs.)3,885
Curb weight, as tested (lbs.)4,002
Weight distribution, as tested, f/r (%)51.9/48.1
Length (in.)191.0
Width (in.)71.7
Height (in.)58.4
Wheelbase (in.)112.4
Track, front (in.)62.1
Track, rear (in.)61.9
Turning circle (ft.)37.4
Legroom, front (in.)41.9
Legroom, rear (in.)35.6
Legroom, 3rd row (in.)Not available
Headroom, front (in.)39.1
Headroom, rear (in.)37.8
Headroom, 3rd row (in.)Not available
Shoulder room, front (in.)56.4
Shoulder room, rear (in.)56.1
Shoulder room, 3rd row (in.)Not available
Seating capacity5
Cargo volume (cu-ft)15.9


Bumper-to-bumper4 years / 50,000 miles
Powertrain4 years / 50,000 miles
Corrosion4 years / 50,000 miles
Roadside assistance4 years / Unlimited miles
Free scheduled maintenanceNot Available


Front airbagsStandard
Side airbagsStandard
Head airbagsStandard front and rear
Knee airbagsNot Available
Antilock brakes4-wheel ABS
Electronic brake enhancementsElectronic brakeforce distribution
Traction controlStandard
Stability controlStandard
Rollover protectionStandard
Tire-pressure monitoring systemTire pressure monitoring
Emergency assistance systemStandard
NHTSA crash test, driver4 stars
NHTSA crash test, passenger4 stars
NHTSA crash test, side front5 stars
NHTSA crash test, side rear5 stars
NHTSA rollover resistance5 stars

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