Mercedes-Benz M133 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]
| Mercedes-Benz M133 | |
|---|---|
 | |
| Overview | |
| Manufacturer | Mercedes-Benz |
| Production | 2013–present |
| Layout | |
| Configuration | Inline-four engine |
| Displacement | 2.0 L (1,991 cc) |
| Cylinder bore | 83 mm (3.27 in) |
| Piston stroke | 92 mm (3.62 in) |
| Block material | Aluminium alloy |
| Head material | Aluminium alloy |
| Valvetrain | DOHC |
| Compression ratio | 8.6:1 |
| Combustion | |
| Turbocharger | Single twin-scroll |
| Fuel system | Direct injection |
| Fuel type | Gasoline |
| Output | |
| Power output | 265–280 kW (360–381 PS; 355–375 hp) |
| Torque output | 450–475 N⋅m (332–350 lb⋅ft) |
| Dimensions | |
| Dry weight | 147.8 kg (326 lb) |
| Chronology | |
| Predecessor | Mercedes-Benz OM642 engine |
| Successor | Mercedes-Benz M139 engine |
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 15 kW (20 PS; 20 hp) and 25 N⋅m (18 lb⋅ft).[5]
Models
| Engine | Power | Torque | Years |
|---|---|---|---|
| M133 DE20 LA | 265 kW (360 PS; 355 hp) at 6,000 rpm |
450 N⋅m (332 lb⋅ft) at 2,250–5,000 rpm |
2013–2015 |
| 280 kW (381 PS; 375 hp) at 6,000 rpm |
475 N⋅m (350 lb⋅ft) at 2,250–5,000 rpm |
2015–2018 |
M133 DE20 LA (265 kW version)
- 2013–2015 C117 CLA45 AMG[6]
- 2013–2015 W176 A45 AMG[7]
- 2014–2015 X156 GLA45 AMG[8]
M133 DE20 LA (280 kW version)
- 2015–2018 C117 CLA45 AMG[9]
- 2015–2018 W176 A45 AMG[10]
- 2015–2019 X156 GLA45 AMG[11]
References
- "Mercedes-AMG 2-liter turbo wins third Engine of the Year Award - MercedesBlog". MercedesBlog. 2016-06-01. Retrieved 2018-07-03.
- Radu, Mihnea (2013-03-24). "M133 – The First Four-Cylinder Turbo Mercedes-AMG Engine Explained". autoevolution. Retrieved 2018-07-03.
- "The New 2.0-l High-Performance Four-Cylinder Engine from Mercedes-AMG - PDF Free Download". slideheaven.com. Retrieved 2018-07-03.
- "Mercedes A 45 AMG: The most powerful 4-cylinder turbo engine in the world". www.car-engineer.com. Retrieved 2018-07-03.
- "Next Mercedes-AMG A45 to outgun rivals with 300+kW". www.motoring.com.au. Retrieved 2018-07-03.
- George, Patrick. "2014 Mercedes-Benz CLA45 AMG: The Jalopnik Review". Jalopnik. Retrieved 2018-07-03.
- "Mercedes-Benz A45 AMG 2.0 turbo good for crazy 185 HP per liter". Autoblog. Retrieved 2018-07-03.
- "2015 Mercedes-Benz GLA45 AMG". Car and Driver. Retrieved 2018-07-03.
- "Mercedes-AMG CLA45 4Matic Reviews | Mercedes-AMG CLA45 4Matic Price, Photos, and Specs | Car and Driver". Car and Driver. Retrieved 2018-07-03.
- "Mercedes-A45 AMG replacement set to breach 400bhp". Evo. Retrieved 2018-07-03.
- "Mercedes-AMG to launch new entry A 45, CLA 45 and GLA 45 models | Autocar". www.autocar.co.uk. Retrieved 2018-07-03.
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