2009 Mercedes-Benz M-Class ML320 Bluetec Road Test Specs | Edmunds

2009 Mercedes-Benz M-Class - Road Test Specs

2009 Mercedes-Benz M-Class SUV

(3.0L V6 Turbo Diesel AWD 7-speed Automatic)


Model year2009
StyleML320 Bluetec 4dr SUV AWD (3.0L 6cyl Turbodiesel 7A)
Base MSRP$48,600
Options on test vehiclePremium Package #2 ($6,600 -- includes rearview camera, power liftgate, Harman Kardon Logic7 audio system, HD Radio, Sirius Satellite Radio, iPod/MP3 media interface with cable, COMAND system with hard-drive-based navigation system and voice activation, real-time traffic, 115-volt AC power outlet, Parktronic, 10-way power adjustable front passenger seat with four-way power-adjustable lumbar support, power-adjustable steering column, memory seats, power-folding exterior mirrors and keyless entry and ignition); Full Leather Seating Package ($1,995 -- includes leather upholstery, leather- and wood-trimmed multifunction steering wheel and burl walnut interior trim); Airmatic Suspension With Adaptive Damping System ($1,600); Heating Package ($1,390 -- includes heated front and rear seats and heated steering column); Three-Zone Automatic Climate Control ($770); Alpine Rain Metallic Paint ($720).
As-tested MSRP$61,200


Drive typeAll-wheel drive with low range
Engine typeV6 turbocharged diesel
Displacement (cc/cu-in)2,987cc (182 cu-in)
Block/head materialAluminum with cast iron cylinder liners/aluminum
ValvetrainDouble overhead camshafts, 4 valves per cylinder, variable valve timing
Compression ratio (x:1)16.5:1
Redline (rpm)4,500
Horsepower (hp @ rpm)210 @ 3,800
Torque (lb-ft @ rpm)398 @ 1,600-2,400
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; Final Drive = 3.45


Suspension, frontIndependent, double wishbones, pneumatic springs and stabilizer bar
Suspension, rearIndependent, multilink, pneumatic springs and stabilizer bar
Steering typeHydraulic power steering
Steering ratio (x:1)18.6:1
Tire brandBridgestone
Tire modelDueler H/L 400
Tire typeAll-season, run-flat
Tire size, front255/50R19 107N
Tire size, rear255/50R19 107N
Wheel size19 by 8.0 inches front and rear
Wheel materialAlloy
Brakes, front13.0-by-1.26-inch ventilated disc
Brakes, rear13.0-by-0.55-inch disc

Track Test Results

0-45 mph (sec.)5.1
0-60 mph (sec.)8.5
0-75 mph (sec.)13.1
1/4-mile (sec. @ mph)16.2 @ 83.3
0-60 with 1 foot of rollout (sec.)8.2
Braking, 30-0 mph (ft.)31
60-0 mph (ft.)121
Slalom, 6 x 100 ft. (mph)62.6
Skid pad, 200-ft. diameter (lateral g)0.76
Sound level @ idle (dB)45.8
@ Full throttle (dB)68.6
@ 70 mph cruise (dB)64.7

Test Driver Ratings & Comments

Acceleration commentsResponds extremely well to brake torque to the tune of 0.6 second to 30 mph. It leaps off the line like a Nissan GT-R, but then realizes it's a turbodiesel. Transmission is busy due to the low redline, but pretty smooth shifting.
Braking ratingGood
Braking commentsSoft-ish pedal in normal use goes rock-hard under full-ABS. Even with the suspension on the firmest setting, there's quite a lot of pitch. More tire noise than ABS noise. Admirable power in the system and good fade resistance, too.
Handling ratingGood
Handling commentsSkid pad: Extended range ESP is still limiting performance as the outside front tire gets abused. Steering gets noticeably heavier when loaded. Slalom: Limit of the chassis is right up against the extended ESP setting so it only intrudes if it's a sloppy run. Keeping inputs smooth and to a minimum is the quickest way through. Grip and body motions are admirably good for such a tall and heavy vehicle.

Testing Conditions

Elevation (ft.)421
Temperature (°F)87.6
Wind (mph, direction)5.4

Fuel Consumption

EPA fuel economy (mpg)18 city/24 highway
Edmunds observed (mpg)21.2
Fuel tank capacity (U.S. gal.)25.1

Dimensions & Capacities

Curb weight, mfr. claim (lbs.)4,974
Curb weight, as tested (lbs.)5,129
Weight distribution, as tested, f/r (%)54/46
Length (in.)188.5
Width (in.)75.2
Height (in.)71.5
Wheelbase (in.)114.7
Track, front (in.)64.0
Track, rear (in.)64.1
Turning circle (ft.)37.9
Legroom, front (in.)42.2
Legroom, rear (in.)40.0
Headroom, front (in.)39.9
Headroom, rear (in.)39.8
Shoulder room, front (in.)59.8
Shoulder room, rear (in.)59.8
Seating capacity5
Cargo volume (cu-ft)54.7
Max. cargo volume, seats folded (cu-ft)72.4


Bumper-to-bumper4 years/50,000 miles
Powertrain4 years/50,000 miles
Corrosion4 years/50,000 miles
Roadside assistanceUnlimited
Free scheduled maintenanceInitial visit within first 3,000 miles


Front airbagsStandard
Side airbagsStandard dual front and dual rear
Head airbagsStandard front and rear
Knee airbagsNot Available
Antilock brakes4-wheel ABS
Electronic brake enhancementsBraking assist, electronic brakeforce distribution
Traction controlStandard
Stability controlStandard
Rollover protectionStandard
Tire-pressure monitoring systemDirect tire pressure monitoring
Emergency assistance systemPre-collision safety system
NHTSA crash test, driverNot Tested
NHTSA crash test, passengerNot Tested
NHTSA crash test, side frontNot Tested
NHTSA crash test, side rearNot Tested
NHTSA rollover resistanceNot Tested

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