2012 Mercedes-Benz GL-Class Technical Data

  GL350 BlueTEC GL450 4MATIC GL550 4MATIC
Vehicle type Four-door, seven-passenger luxury sport utility Four-door, seven-passenger luxury sport utility Four-door, seven-passenger luxury sport utility
Chassis Steel unibody Steel unibody Steel unibody
 
Engine 72-degree V6 90-degree V8 90-degree V8
Valve arrangement Four valves per cylinder Four valves per cylinder Four valves per cylinder
Valvetrain Single overhead camshaft per cylinder bank, duplex chain-driven Double overhead camshaft per cylinder bank;duplex chain-driven; Double overhead camshaft per cylinder bank;duplex chain-driven;
Displacement (cc) 2,987 4,663 5,461
Bore (in.) 3.27 / 83.0 3.66 / 92.9 3.86 / 98.0
Stroke (in.) 3.62 / 92.0 3.39 / 86.0 3.56 / 90.5
Compression ratio 16.5 : 1 10.7:1 10.7:1
Horsepower @ rpm 210 @ 3,400 335 @ 6,000 382 @ 6,000
Torque (lb-ft.) @ rpm 400 @ 1,600 – 2,800 339 @ 2,700 – 5,000 391 @ 2,800 – 4,800
Intake system Turbocharger and intercooler; piezoelectric injectors Two-stage resonance intake manifold; tumble flaps Two-stage resonance intake manifold
Max. engine speed (rpm) 4,500 rpm 6,500 rpm 6,500 rpm
 
Transmission Seven-speed automatic Seven-speed automatic Seven-speed automatic
Shift controls Direct Select Direct Select Direct Select
Gear ratios Automatic Automatic Automatic
1 4.38:1 4.38:1 4.38:1
2 2.86:1 2.86:1 2.86:1
3 1.92:1 1.92:1 1.92:1
4 1.37:1 1.37:1 1.37:1
5 1.00:1 1.00:1 1.00:1
6 0.82:1 0.82:1 0.82:1
7 0.73:1 0.73:1 0.73:1
R -3.42:1 - 3.42:1 - 3.42:1
R2 "comfort mode" -2.23:1 -2.23:1 -2.23:1
Final drive 3.45:1 3.70:1 3.70:1
 
Stability control ESP stability control ESP stability control ESP stability control
Suspension Four-wheel independent with AIRMATIC Four-wheel independent with AIRMATIC Four-wheel independent with AIRMATIC
  front Double control arm, air springs, gas shocks, stabilizer bar Double control arm, air springs, gas shocks, stabilizer bar Double control arm, air springs, gas shocks, stabilizer bar
  rear Four-link, air springs, gas shocks, stabilizer bar Four-link, air springs, gas shocks, stabilizer bar Four-link, air springs, gas shocks, stabilizer bar
Steering Speed-sensitive power-assisted rack-and-pinion Speed-sensitive power-assisted rack-and-pinion Speed-sensitive power-assisted rack-and-pinion
Turning radius (ft.) 39.7 39.7 39.7
Wheels (in.) front 8.5 x 20 8.5 x 19 10 x 21
rear 8.5 x 20 8.5 x 19 10 x 21
Tires front 275 / 50 R 20 275 / 55 R 19 295 / 40 R 21
rear 275 / 50 R 20 275 / 55 R 19 295 / 40 R 21
Brakes Hydraulic power assisted 4-wheel vented discs;Four-channel ABS anti-lock, Brake Assist, electronic brake proportioning Hydraulic power assisted 4-wheel vented discs;Four-channel ABS anti-lock, Brake Assist, electronic brake proportioning Hydraulic power assisted 4-wheel vented discs;Four-channel ABS anti-lock, Brake Assist, electronic brake proportioning
Disc diameter (in./mm) front 14.7 / 375; ventilated 14.7 / 375 14.7 / 375
rear 13.0 / 330; ventilated 13.0 / 330 13.0 / 330
Disc thickness (in./mm) front 1.26 / 32 1.26 / 32 1.26 / 32
rear 0.87 / 22 0.87 / 22 0.87 / 22
 
Exterior dimensions (in)
Wheelbase 121.1 / 3,075 121.1 / 3,075 121.1 / 3,075
Length 200.6 / 5,088 200.6 / 5,088 200.6 / 5,088
Width 76.4 76.4 76.4
Height 72.4 72.4 72.4
Ground clearance (in.) 7.9 - 10.9 7.9 - 10.9 7.9 - 10.9
Track front 65.0 / 1,651 65.0 / 1,651 65.0 / 1,651
rear 65.1 / 1,654 65.1 / 1,654 65.1 / 1,654
Interior dimensions (in.)
Head room front 40.1 / 1,019 40.1 / 1,019 40.1 / 1,019
2nd / 3rd row 40.6 / 1,031 40.6 / 1,031 40.6 / 1,031
Leg room front 40.3 40.3 40.3
2nd / 3rd row 39.5 39.5 39.5
Shoulder room front 58.3 / 1,482 58.3 / 1,482 58.3 / 1,482
2nd 58.9 / 1,495 58.9 / 1,495 58.9 / 1,495
Cargo Length Back row up -- -- --
Back -- -- --
 
Capacities
Cabin volume (cu. ft.) -- -- --
Cargo volume seats up 14.3 14.3 14.3
Back row down 43.8 (2nd & back row: 83.3) 43.8 (2nd & back row: 83.3) 43.8 (2nd & back row: 83.3)
Curb weight (lbs.) 5,512 5,346 5,545
Towing (lbs.) 7,500 7,500 7,500
Max. total payload -- -- --
Fuel tank/reserve (gallons) 26.4 / 3.4 26.4 / 3.4 26.4 / 3.4
AdBlue tank (gallons) 8.5 N/A N/A
 
Performance
0-60 (seconds) 9.4 (est.) 7.1 (est.) 6.4 (est.)
Top speed (mph) 130 (electronically limited) 130 (electronically limited) 130 (electronically limited)
Fuel mileage, city/hwy 17 / 21 / 19 13 / 18 / 15 12 / 17 / 14
Note: Technical specifications are subject to change.
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