2009 Mercedes-Benz R-Class R320 Bluetec Road Test Specs | Edmunds

2009 Mercedes-Benz R-Class - Road Test Specs

2009 Mercedes-Benz R-Class Wagon

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


Model year2009
ModelR320 BlueTec
Base MSRP$49,150
Options on test vehiclePremium 2 Package ($7,850 -- includes park assist, rearview camera, power liftgate, second-row split bench seat that increases maximum occupant capacity from six to seven, COMAND interface 7-inch LCD screen, hard-drive-based navigation system with music storage capability, HD Radio, Sirius Satellite Radio, real-time traffic, 11-speaker Harman Kardon Logic7 audio system with iPod jack, 115-volt power outlet, auto-dimming interior and driver-side exterior mirrors, power tilt-telescoping steering column, 10-way power front seats with three-position memory, tri-zone climate control with vents for all three rows and separate controls for second-row occupants, second-row side window shades); Rear Seat Entertainment System ($1,850 -- includes front-seatback-mounted TV screens with DVD playback); Keyless Go ($1,130 -- includes keyless entry and ignition); Panorama Sunroof ($1,050); Heated Front Seats ($720); Metallic Capri Blue Paint ($720).
As-tested MSRP$62,145


Drive typeAll-wheel drive
Engine typeTurbocharged diesel V6
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 typeSeven-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 wishbone with high-strength die-cast aluminum-alloy upper arms and cast-iron lower arms. Anti-dive geometry. Stabilizer bar.
Suspension, rearIndependent 4-arm multilink. High-strength die-cast aluminum-alloy upper arms. Geometry for anti-squat and alignment control. Stabilizer bar.
Steering typeHydraulic power steering
Steering ratio (x:1)Variable
Tire brandBridgestone
Tire modelDueler H/L
Tire typeAll-Season
Tire size, front255/50 R19 107H
Tire size, rear255/50 R19 107H
Wheel size19-by-8 inches front and rear
Wheel materialAlloy
Brakes, front13.0-inch ventilated disc
Brakes, rear13.0-inch disc

Track Test Results

0-45 mph (sec.)5.3
0-60 mph (sec.)8.8
0-75 mph (sec.)13.7
1/4-mile (sec. @ mph)16.4 @ 82.0
0-60 with 1 foot of rollout (sec.)8.5
Braking, 30-0 mph (ft.)31
60-0 mph (ft.)122
Slalom, 6 x 100 ft. (mph)58.1
Skid pad, 200-ft. diameter (lateral g)0.74
Sound level @ idle (dB)45.7
@ Full throttle (dB)68.7
@ 70 mph cruise (dB)64.6

Test Driver Ratings & Comments

Acceleration commentsNice strong wave of acceleration. Transmission keeps engine in the meat of its power band with rapid shifts and close gearing.
Braking ratingVG
Braking commentsPedal a bit soft, but still adequate. Dead consistent stop after stop.
Handling commentsSmooth hands are required to keep stability control uninvolved -- a sure way to ruin a good run. Otherwise, there's ample body roll, but the R-Class is reasonably well-behaved.

Testing Conditions

Temperature (°F)81
Wind (mph, direction)2 mph SE

Fuel Consumption

EPA fuel economy (mpg)18 city/24 highway, 20 combined
Edmunds observed (mpg)20.8
Fuel tank capacity (U.S. gal.)25.1

Dimensions & Capacities

Curb weight, mfr. claim (lbs.)5,092
Curb weight, as tested (lbs.)5,537
Weight distribution, as tested, f/r (%)51/49
Length (in.)203.0
Width (in.)75.7
Height (in.)65.4
Wheelbase (in.)126.6
Track, front (in.)65.5
Track, rear (in.)65.3
Turning circle (ft.)40.7
Legroom, front (in.)39.8
Legroom, rear (in.)36.2
Legroom, 3rd row (in.)32.4
Headroom, front (in.)39.8
Headroom, rear (in.)40.4
Headroom, 3rd row (in.)37.2
Shoulder room, front (in.)60.3
Shoulder room, rear (in.)59.6
Shoulder room, 3rd row (in.)59.6
Seating capacity7
Cargo volume (cu-ft)15.3
Max. cargo volume, seats folded (cu-ft)85.0


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 second-row
Head airbagsStandard all three rows
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
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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