The 1.1-liter, 3-cylinder Mitsubishi 3A91 engine was produced by the company from 2004 to 2012 and was only installed in the sixth generation of the Colt model and its corresponding Smart hatchback. According to the Daimler-Chrysler group's nomenclature, this engine is known as the Mercedes M134. The 3A9 engine family also includes the engines: 3A90 and 3A92.
| Exact capacity | 1124 cm³ |
| Power system | distributed injection |
| Engine power | 75 HP |
| Torque | 100 nm |
| Engine block | aluminum R3 |
| Block head | aluminum 12v |
| Cylinder diameter | 75 mm |
| Piston stroke. | 84.8 mm |
| Compression ratio | 10.5 |
| Engine features | DOHC |
| Hydraulic compensator. | there is no |
| Timing drive | chain |
| Timing phase adjuster | MIVEC |
| Turbocharging | there is no |
| What oils to use | 3.2 liters 5W-30 |
| Fuel type | 95 |
| Environmental class | EURO 4/5 |
| Approximate life expectancy | 220 000 HP |
| City | 7.0 litry |
| Route | 4.6 litry |
| Mixed | 5.5 litry |
Engine weight 3A91 according to the catalog is 92 kg. The engine number 3A91 is located at the junction of the block with the gearbox. In the early years, there were problems with fluctuating speeds, but they were all fixed with firmware updates. The main issues with this power unit are only related to lubricant consumption. The thin piston rings begin to wear out at around 100,000 km and oil consumption occurs. After 150,000 km, the timing chain often requires replacement, most commonly with a phaser regulator. There are no hydraulic compensators here, so don't forget about adjusting the valve clearances.
| Colt 6 (Z30) | 2004 - 2012 |
| Forfour 1 (W454) | 2004 - 2006 |
The 0.7-liter Mitsubishi 4A30 engine and its turbocharged version, the 4A30T, were produced from 1993 to 2012 and installed in Japanese kei-cars, including the relatively popular model Pajero Mini. This engine was available in both carbureted and fuel-injected versions. The 4A3 family also includes an engine with the designation 4A31.
The 1.8-liter gasoline engine Mitsubishi 4B10 was installed by the company from 2007 to 2017 and used in popular models of the Japanese corporation, such as Lancer, ASX, and the similar RVR. This engine was created in collaboration with Hyundai and Chrysler as part of the Global Engine Manufacturing Alliance. The 4B1 family also includes the following engines: - 4B11, - 4B11T, and - 4B12.
The 2.0-liter turbocharged engine Mitsubishi 4B11T was produced by the company from 2007 to 2016 and was used in highly upgraded models such as the Lancer Ralliart and various versions of the Evolution X. There are nine different versions of this engine with varying degrees of boost. The 4B1 family also includes the following engines: 4B10, 4B11, and 4B12.
The 1.5-liter Mitsubishi 4G15 engine was produced by the Japanese corporation from 1985 to 2012, and then its assembly was continued in China, where it is still used in many local models. This engine has many versions: with a carburetor, fuel injection, direct GDi injection, and turbocharged 4G15T. The 4G1 line also includes engines: 4G13, 4G18, and 4G19.
The 1.8-liter engine Fiat 370A0011 or 1.8 E.torQ is produced in Brazil since 2010 and installed in popular models such as Argo, Toro, Linea and Strada pickup truck in Latin America. This engine is also found under the hood of the Jeep Renegade crossover in many markets. Also part of the E.torQ series is the engine 310A5011.
The 3.0-liter engine Opel X30XE or Ecotec L81 was produced in England from 1994 to 2001 and installed in popular models of the company such as Omega, Vectra, and Cadillac Catera. There was also a more powerful and rare version of this engine with the index X30XEI. The X20 series also includes the following engines: X20SE, X20XEV, X22SE, X22XE, and X25XE.