2012 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 | 60-degree V6 | 60-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) | 3,498 | 3,498 | 4,663 | 4,663 | |
| Bore (in.) | 3.66 | 3.66 | 3.66 | 3.66 | |
| Stroke (in.) | 3.39 | 3.39 | 3.39 | 3.39 | |
| Compression ratio | 12.0:1 | 12.0:1 | 10.5:1 | 10.5:1 | |
| Horsepower @ rpm | 302 @ 6,500 | 302 @ 6,500 | 402 @ 5,000-5,750 | 402 @ 5,000-5,750 | |
| Torque (lb-ft.) @ rpm | 273 @ 3,500 - 5,250 | 273 @ 3,500 - 5,250 | 443 @ 1,600 - 4,750 | 443 @ 1,600 - 4,750 | |
| Intake system | Naturally Aspirated, Direct Injection | Naturally Aspirated, Direct Injection | Direct gasoline injection with piezo injectors, twin turbo w/ 12.9 lbs. boost |
Direct gasoline injection with piezo injectors, twin turbo w/ 12.9 lbs. boost |
|
| Max. engine speed (rpm) | 7,000 | 7,000 | 6,300 | 6,300 | |
| 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 | Electro Hydraulic Power-assisted Speed-sensitive Rack-and-Pinion Steering |
Electro Hydraulic Power-assisted Speed-sensitive Rack-and-Pinion Steering |
|
| Turning radius (ft.) | 35.3 | 35.3 | 35.3 | 35.3 | |
| Wheels (in.) | front | 7.5 x 17 | 7.5 x 17 | 8.0 x 18 | 8.0 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 | 14.2 / 360 | 14.2 / 360 |
| rear | 11.8 / 300 | 11.8 / 300 | 11.8 / 300 | 11.8 / 300 | |
| Disc thickness (in./mm) | front | 1.3 / 32 | 1.3 / 32 | 1.4 / 36 | 1.4 / 36 |
| 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 | 54.8 | 55.0 | 54.8 | 55.0 | |
| 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 | front | 36.8 | 38.3 | 36.8 | 38.3 |
| 2nd / 3rd row | 35.5 | 36.2 | 35.5 | 36.2 | |
| Leg room | front | 42.0 | 42.0 | 42.0 | 42.0 |
| 2nd / 3rd row | 32.6 | 30.1 | 32.6 | 30.1 | |
| Shoulder room | front | 54.1 | 54.1 | 54.1 | 54.1 |
| 2nd row | 48.9 | 47.8 | 48.9 | 47.8 | |
| Cargo Length | Back row up | N/A | N/A | N/A | N/A |
| Back row down | N/A | N/A | N/A | N/A | |
| Capacities | |||||
| Cabin volume (cu. ft.) | TBD | TBD | TBD | TBD | |
| Cargo volume | seats up | 13.3 | 11.5 (Top Down: 8.8) | 13.3 | 11.5 (Top Down: 8.8) |
| Back row down | -- | -- | -- | -- | |
| Curb weight (lbs.) | 3,619 | 3,883 | 3,773 | 4,048 | |
| 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 | |
| AdBlue tank (gallons) | N/A | N/A | N/A | N/A | |
| Performance | |||||
| 0-60 (seconds) | 6.1 | 6.3 (est) | 4.9 | 5.0 (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. | |||||
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