Mercedes-Benz SL (R129, facelift 1998) AMG SL 73 V12 (525 hp) Automatic
Gasoline engine with 525 hp (386 kW) and 553 lb-ft (750 Nm), built 1999–2001, roadster body, rear-wheel drive. It is the most powerful gasoline version of the generation.
EnlargePower525 hp (386 kW)
Torque553 lb-ft (750 Nm)
0–62 mph4.8 s
Top speed155 mph (250 km/h, Electronically limited)
FuelGasoline
Specifications
Engine
| Engine version | AMG SL 73 V12 (525 hp) Automatic |
|---|---|
| Engine code | M 120.990 |
| Displacement | 7.3 L (7,291 cm³) |
| Cylinders | 12 |
| Cylinder layout | V-engine |
| Engine position | Front, Longitudinal |
| Valves per cylinder | 4 |
| Valvetrain | DOHC |
| Fuel system | Multi-point indirect injection |
| Compression ratio | 10-5 |
| Bore | 91.5 mm |
| Stroke | 92.4 mm |
Performance
| Power | 525 hp (386 kW) @ 5500 rpm |
|---|---|
| Torque | 553 lb-ft (750 Nm) @ 4000 rpm |
| 0–62 mph (0–100 km/h) | 4.8 s |
| Top speed | 155 mph (250 km/h, Electronically limited) |
Fuel economy and emissions
| Fuel | Gasoline |
|---|---|
| City | 10 mpg (24.5 l/100 km) |
| Highway | 15 mpg (15.9 l/100 km) |
| Emission standard | Euro 3 |
| Fuel tank | 21.1 gal (80 l) |
Body, dimensions and weight
| Body style | Roadster |
|---|---|
| Doors | 2 |
| Length | 177.1 in (4,499 mm) |
| Width | 71.3 in (1,812 mm) |
| Height | 51.0 in (1,296 mm) |
| Curb weight | 4,354 lb (1,975 kg) |
| Gross vehicle weight | 5,115 lb (2,320 kg) |
| Cargo volume | 9.4 cu ft (265 l) |
| Drag coefficient | 0.32-0.40 |
Drivetrain and chassis
| Drive | Rear-wheel drive |
|---|---|
| Steering | Hydraulic power steering |
| Front suspension | Coil spring, hydropneumatic, wishbone, stabilizer bar |
| Rear suspension | Coil spring, hydropneumatic, stabilizer bar, independent multi-link |
| Tires | Front wheel tires: 245/40 ZR 18\; Rear wheel tires: 275/35 ZR 18 |
| Wheels | Front wheel rims: 8.5 J x 18 H 2\; Rear wheel rims: 9.5 J x 18 H 2 |
| Driver assistance | ABS (Anti-lock braking system) |
What to check on a Mercedes-Benz SL with this engine
- On a gasoline engine, check the oil consumption, the timing chain or belt and, on turbo engines, the turbocharger.
- Test the clutch or the automatic transmission from a cold start and in the low gears.
- Compare the odometer with the readings in the service records and in the VIN history report: a big gap means the mileage was rolled back.
Other Mercedes-Benz SL (R129, facelift 1998) engines
| Engine | Fuel | Power | Combined |
|---|---|---|---|
| SL 280 V6 (204 hp) | Gasoline | 204 hp (150 kW) | |
| SL 280 V6 (204 hp) Automatic | Gasoline | 204 hp (150 kW) | |
| SL 320 V6 (224 hp) Automatic | Gasoline | 224 hp (165 kW) | |
| SL 500 V8 (306 hp) Automatic | Gasoline | 306 hp (225 kW) | |
| SL 600 V12 (394 hp) Automatic | Gasoline | 394 hp (290 kW) | |
| AMG SL 55 V8 (354 hp) Automatic | Gasoline | 354 hp (260 kW) |