Mercedes-Benz M133 engine
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| Mercedes-Benz M133 | |
|---|---|
| File:Mercedes-Benz Motor 133.JPG | |
| Overview | |
| Manufacturer | Mercedes-Benz |
| Production | 2013– |
| Combustion chamber | |
| Configuration | Inline four engine |
| Displacement | 2.0 L (1,991 cc) |
| Cylinder bore | 83.0 mm |
| Piston stroke | 92.0 mm |
| Cylinder block alloy | Aluminium alloy |
| Cylinder head alloy | Aluminium alloy |
| Valvetrain | DOHC |
| Compression ratio | 8.6:1 |
| Combustion | |
| Turbocharger | Single-turbo |
| Fuel type | Petrol |
| Dimensions | |
| Dry weight | 147.8 kg (326 lb) |
| Chronology | |
| Predecessor | Mercedes-Benz OM642 engine |
| Successor | Mercedes-Benz M139 engine |
The M133 is a turbocharged inline-four engine produced by Mercedes-Benz. Since its debut in 2013, it has been awarded International Engine of the Year three times in the "Best New Engine" and "1.8-litre to 2-litre" categories.[1]
Contents
Design
The M133 is based on the M270 engine but has been extensively revised by AMG.[2] It features a twin-scroll turbocharger, BlueDIRECT direct injection, iron-carbon alloy on the cylinder walls to reduce friction, and zircon in the cylinder heads to increase thermal conductivity.[3] The cooling system is also based on the one found in the Mercedes-Benz SLS AMG.[4] The M133 was updated in 2015, and features performance improvements of 20 kW (27 hp) and 25 N·m (18 lb·ft).[5]
Models
| Engine | Power | Torque | Years |
|---|---|---|---|
| M133 DE20 AL | 265 kW (355 hp) @ 6,000 rpm |
450 N·m (332 lb·ft) @ 2,250–5,000 rpm |
2013–2015 |
| 280 kW (375 hp) @ 6,000 rpm |
475 N·m (350 lb·ft) @ 2,250–5,000 rpm |
2015–present |
M133 DE20 AL (265 kW version)
- 2013–2015 C117 CLA45 AMG[6]
- 2013–2015 W176 A45 AMG[7]
- 2014–2015 X156 GLA45 AMG[8]
M133 DE20 AL (280 kW version)
- 2015–present C117 CLA45 AMG[9]
- 2015–present W176 A45 AMG[10]
- 2015–present X156 GLA45 AMG[11]
References
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