The 2.5-liter Renault G9U or 2.5 DCI diesel engine was produced by the company from 1999 to 2014 and installed in popular microbuses of the Master and Trafic second generation series. This engine was also used in similar models such as the Nissan Interstar, Opel Vivaro, and Movano. The G-series engine series also includes: G8T and G9T.
| Typ | row |
| Number of cylinders | 4 |
| number of valves | 16 |
| Exact capacity | 2463 cm³ |
| Cylinder diameter | 89 mm |
| Piston stroke. | 99 mm |
| Power system | Common Rail |
| Power | 100 - 145 HP |
| Torque | 260 - 320 nm |
| Compression ratio | 17.1 - 17.8 |
| Fuel type | diesel |
| Environmental class | EURO 3/4 |
| City | 9.6 litry |
| Route | 7.4 litry |
| Mixed | 8.2 litry |
The weight of the G9U engine according to the catalog is 205 kg. The engine number G9U is located at the back, at the junction of the block and the oil pan. The wear of the timing gear is not very reliable. The mechanism for adjusting the clearance between the gears of the timing drive often fails, causing accelerated wear of the gears and their fragments getting into the oil. This often leads to valve-piston interference. The turbocharger pushes the oil. When the oil or air filter is rarely replaced, the turbine shaft and its seals wear out quickly. And then the turbocharger starts pushing the lubricant directly into the engine intake. Oil entering the combustion chamber at high speeds can cause engine failure. Bearing rotation is a common issue. Many cases of bearing rotation due to low oil level have been described on the forum, and the turbine is not always the cause. The oil pump is often responsible for the drop in pressure, as the shaft, gears, and relief valve wear out and get stuck. Electrical failures are also quite common. A significant portion of service requests are related to electrical issues. The usual reason is worn-out or broken wiring. Start the inspection with that. Oil leaks are another weak point of this diesel engine. Regular lubricant leaks are most commonly found under the timing drive gears or valve cover.
| Master 2 (X70) | 1999 - 2010 |
| Trafic 2 (X83) | 2001 - 2014 |
| Interstar 2 (X70) | 2003 - 2010 |
| Primastar 1 (X83) | 2003 - 2014 |
| Movano A (X70) | 2003 - 2010 |
| Vivaro A (X83) | 2003 - 2011 |
The 1.6-liter diesel engine Nissan and Renault R9M or 1.6 dCi has been produced since 2011 and is installed in models such as Megane, Scenic, Espace, Koleos, as well as Qashqai and X-Trail. In Mercedes cars, this diesel engine is known as OM622 and OM626. The R-Series engine range also includes the R9N.
The 1.9-liter Renault F9Q or 1.9 dCi diesel engine was produced by the company from 1998 to 2012 and was not only installed in their own models: such an engine was also found in Suzuki, Mitsubishi, and Volvo. Three generations of this engine can be distinguished according to Euro 3, Euro 4, and Euro 5 emission standards. The F-series diesel engines also include: F8M, F8Q, and F9Qt.
The 2.3-liter diesel engine Renault M9T or 2.3 dCi has been produced by the company since 2010 and is installed in popular microbuses such as Renault Master 3, Opel Movano B, and Nissan NV400. There is also a version of this engine adapted for pickups based on the Nissan Navara, designated as YS23. The M engine series also includes: M4R and M9R.
The 1.6-liter Renault F8M or 1.6 D diesel engine was produced by the company from 1982 to 1994 and installed in models with indexes 5, 9, 11, as well as the Express van and Volvo 340/360. It is from this engine that the history of diesel engines for French passenger cars began. The Renault F-series diesel engine lineup also includes the F8Q, F9Q, and F9Qt engines.
The 1.4-liter turbocharged GM LE2 engine has been produced at the Hungarian factory of the company since 2016 and is installed in popular corporate models such as the Buick Encore, Chevrolet Cruze, and Trax. In Opel vehicles, this powertrain is known by the index B14XFT or D14XFT. The family of small petrol engines includes: - LV7, - L3A, - LFV, - LYX, and - LSD.
The 2.0-liter turbocharged RB20DET engine by Nissan was produced in Japan from 1985 to 1995 and was installed in many sporty and tuned versions of the company's cars. Specifically for the Skyline 2000 GTS-R model, 800 enhanced units from the R series were produced. The RB series includes: RB20E, RB20ET, RB20DE, RB25DE, RB25DET, and RB26DETT.