2011 Mercedes-Benz E-Class Cabriolet Technical Data

  E350 Coupe E350 Cabriolet E550 Coupe E550 Cabriolet
Vehicle type Four-passenger pillarless hardtop coupe Four-passenger convertible with fabric roof Four-passenger pillarless hardtop coupe Four-passenger convertible with fabric roof
Chassis Steel unibody Steel unibody Steel unibody Steel unibody
 
Engine 90-degree V6 90-degree V6 90-degree V8 90-degree V8
Valve arrangement Four valves per cylinder Four valves per cylinder Four valves per cylinder Four valves per cylinder
Valvetrain DOHC per cylinder DOHC per cylinder DOHC per cylinder DOHC per cylinder
Displacement (cc) 213.5 / 3,498 213.5 / 3,498 332.2 / 5,461 332.2 / 5,461
Bore (in./mm) 3.66 3.66 3.86 / 98.0 3.86 / 98.0
Stroke (in./mm) 3.39 3.39 3.56 / 90.5 3.56 / 90.5
Compression ratio 10.7:1 10.7:1 10.7:1 10.7:1
Horsepower @ rpm 268 @ 6,000 268 @ 6,000 382 @ 6,000 382 @ 6,000
Torque (lb-ft.) @ rpm 258 @ 2,400 - 5,000 258 @ 2,400 - 5,000 391 @ 2,800 - 4,800 391 @ 2,800 - 4,800
Intake system Magnesium two-stage resonance intake manifold Magnesium two-stage resonance intake manifold Magnesium two-stage resonance intake manifold Magnesium two-stage resonance intake manifold
Max. engine speed (rpm) 6,500 6,500 6,500 6,500
 
Transmission Seven-speed automatic Seven-speed automatic Seven-speed automatic Seven-speed automatic
Shift controls Touch Shift manual shift control Touch Shift manual shift control Touch Shift manual shift control Touch Shift manual shift control
Gear ratios        
1 4.377 4.377 4.377 4.377
2 2.859 2.859 2.859 2.859
3 1.921 1.921 1.921 1.921
4 1.368 1.368 1.368 1.368
5 1.00 1.00 1.00 1.00
6 0.82 0.82 0.82 0.82
7 0.728 0.728 0.728 0.728
R -3.416 -3.416 -3.416 -3.416
R2 "comfort mode" -2.231 -2.231 - 2.23:1 - 2.23:1
Final drive 2.82 2.82 2.65 2.65
 
Stability control ESP stability control ESP stability control ESP stability control ESP stability control
Suspension        
  front Strut with two-piece control arm, antidive geometry; coil springs, gas shock absorbers, stabilizer bar Strut with two-piece control arm, antidive geometry; coil springs, gas shock absorbers, stabilizer bar Strut with two-piece control arm, antidive geometry; coil springs, gas shock absorbers, stabilizer bar Strut with two-piece control arm, antidive geometry; coil springs, gas shock absorbers, stabilizer bar
  rear Five-arm multilink, anti-squat geometry; coil springs, gas shock absorbers, stabilizer bar Five-arm multilink, anti-squat geometry; coil springs, gas shock absorbers, stabilizer bar Five-arm multilink, anti-squat geometry; coil springs, gas shock absorbers, stabilizer bar Five-arm multilink, anti-squat geometry; coil springs, gas shock absorbers, stabilizer bar
Steering Speed-sensitive power-assisted rack-and-pinion Speed-sensitive power-assisted rack-and-pinion Speed-sensitive power-assisted rack-and-pinion Speed-sensitive power-assisted rack-and-pinion
Turns, lock-to-lock 3 3 3 3
Steering ratio 14.7:1 14.7:1 14.7:1 14.7:1
Turning radius (ft.) 35.3 35.3 35.3 35.3
Wheels (in.) front 7.5 x 17 7.5 x 17 7.5 x 18 7.5 x 18
  rear 8.5 x 17 8.5 x 17 8.5 x 18 8.5 x 18
Tires front 235 / 45 R 17 235 / 45 R 17 235 / 40 R 18 235 / 40 R 18
  rear 255 / 40 R 17 255 / 40 R 17 255 / 35 R 18 255 / 35 R 18
Brakes Dual-circuit, power assisted four-wheel discs
with ABS anti-lock and emergency-sensing Brake Assist
Dual-circuit, power assisted four-wheel discs
with ABS anti-lock and emergency-sensing Brake Assist
Dual-circuit, power assisted four-wheel discs
with ABS anti-lock and emergency-sensing Brake Assist
Dual-circuit, power assisted four-wheel discs
with ABS anti-lock and emergency-sensing Brake Assist
Disc diameter (in./mm) front 12.7 / 322 12.7 / 322 13.5 / 344 13.5 / 344
rear 11.8 / 300 11.8 / 300 11.8 / 300 11.8 / 300
Disc thickness (in./mm) front 1.3 / 32 1.3 / 32 1.3 / 32 1.3 / 32
rear 0.9 / 22 0.9 / 22 0.9 / 22 0.9 / 22
 
Exterior dimensions (in. / mm)
Wheelbase 108.7 108.7 108.7 108.7
Length 184.96 / 4,698 184.96 / 4,698 184.96 / 4,698 184.96 / 4,698
Width 70.3 70.3 70.3 70.3
Height 55 55.2 55 55.2
Ground clearance (in.) 3.0 / 75 3.0 / 75 3.0 / 75 3.0 / 75
Track front 60.5 / 1538 60.5 / 1538 60.5 / 1538 60.5 / 1538
rear 60.8 / 1544 60.8 / 1544 60.8 / 1544 60.8 / 1544
Interior dimensions (in.)
Head room (w/sunroof) front 40.2 40.2 40.2 40.2
2nd row 35.8 / 908 35.8 / 908 35.8 / 908 35.8 / 908
Leg room front 42 TBD 42 TBD
2nd row 33 TBD 33 TBD
Shoulder room front 40.35 / 1025 40.35 / 1025 40.35 / 1025 40.35 / 1025
2nd row TBD TBD TBD TBD
Cargo Length Back row up N/A N/A N/A N/A
Back row down N/A N/A N/A N/A
Cargo floor width (narrowest) N/A N/A N/A N/A
 
Capacities
Cabin volume (cu. ft.) TBD TBD TBD TBD
Cargo volume seats up 15.89 11.5  (Top Down: 8.8) 15.89 11.5  (Top Down: 8.8)
Back row down -- -- -- --
Curb weight (lbs.) 3,748 3,924 3,891 4,101
Gross vehicle weight rating (lbs.) TBD TBD TBD TBD
Towing (lbs.) N/A N/A N/A N/A
Max. total payload TBD TBD TBD TBD
Fuel tank/reserve (gallons) 17.4 / 4.6 17.4 / 4.6 17.4 / 4.6 17.4 / 4.6
 
Performance
0-60 (seconds) 6.2 6.7 (est) 5.0 5.1 (est)
Top speed (mph) 130 130 130 130
Fuel mileage, city/hwy/comb 17 / 24 / 20 17 / 23 / 19 17 / 27 / 21 16 / 25 / 19
 
Note: Technical specifications are subject to change.