The 1.5-liter Mitsubishi 4G15T, also known as the 1.5 Mivec Turbo engine, was manufactured between 2004 and 2013 and was fitted to the Smart Forfour Brabus and charged Colt CZT and Ralliart models. The Mercedes M122 is the name given to this type of power unit by the Daimler-Chrysler company.
The engines 4G13, 4G15, 4G18, and 4G19 are also part of the 4G1 family.
The engine was mounted on:
- Mitsubishi Colt 6 (Z30) in 2004 – 2013;
- Smart Forfour 1 (W454) in 2005 – 2006.
Specifications
| Production years | 2004-2013 |
| Displacement, cc | 1468 |
| Fuel system | distributed injection |
| Power output, hp | 147 – 177 |
| Torque output, Nm | 210 – 230 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 75.5 |
| Piston stroke, mm | 82 |
| Compression ratio | 9.0 |
| Features | DOHC |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | MIVEC |
| Turbocharging | MHI TF035HM |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 3.7 |
| Fuel type | petrol |
| Euro standards | EURO 4/5 |
| Fuel consumption, L/100 km (for Mitsubishi Colt CZT 2007) — city — highway — combined |
8.6 5.7 6.8 |
| Engine lifespan, km | ~250 000 |
| Weight, kg | 145 (with attachments) |
Disadvantages of the Mitsubishi 4G15T engine
This unit is very dependable and rarely causes issues for a turbo engine;
The majority of complaints concern the electric choke’s unpredictability, but calibration and cleaning can help;
An oil burner is frequently discovered after 100,000 kilometers because of ring or cap wear;
Keep an eye on the timing belt’s condition because the valves typically bend when it breaks;
Engine mounts, thermostats, and short-lived ignition coils are among the weaknesses.