| Mercedes-Benz M133 | |
| Manufacturer: | Mercedes-AMG |
| Production: | 2013–2019 |
| Successor: | Mercedes-Benz M139 engine |
| Configuration: | Inline-four engine |
| Displacement: | 1991cc |
| Bore: | 83mm |
| Stroke: | 92mm |
| Block: | Aluminium alloy |
| Head: | Aluminium alloy |
| Valvetrain: | DOHC |
| Compression: | 8.6:1 |
| Turbocharger: | Single twin-scroll |
| Fuelsystem: | Direct injection |
| Fueltype: | Gasoline |
| Power: | NaN0NaN0 |
| Torque: | NaN0NaN0 |
| Weight: | 147.8kg (325.8lb) |
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]
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 150NaN0 and 250NaN0.[5]
| Engine | Power | Torque | Years |
|---|---|---|---|
| M133 DE20 LA | 2650NaN0 at 6,000 rpm | 4500NaN0 at 2,250–5,000 rpm | 2013–2015 |
| 2800NaN0 at 6,000 rpm | 4750NaN0 at 2,250–5,000 rpm | 2015–2018 |