The 3.0-liter 12-valve Renault Z7X engine belongs to the V6 PRV series. This family consists of V-shaped 6-cylinder engines, which were introduced in 1974 and included a range of units with a capacity of 2.5 to 3 liters, including turbocharged ones. They can be found under the hood of Renault 25, Safrane, Laguna, and Espace models.
| Engine make | Z7X |
| Power system | injector |
| Engine type | V-type |
| Engine capacity | 2963 cm³ |
| Number of cylinders | 6 |
| number of valves | 2 |
| Piston stroke. | 72.7 mm |
| Cylinder diameter | 93 mm |
| Compression ratio | 9.6 |
| Power | 165 - 170 HP |
| Torque | 230 - 235 nm |
| Environmental class | — |
| Engine make | Z7X Bi-Turbo |
| Power system | injector |
| Engine type | V-type |
| Engine capacity | 2963 cm³ |
| Number of cylinders | 6 |
| number of valves | 2 |
| Piston stroke. | 72.7 mm |
| Cylinder diameter | 93 mm |
| Compression ratio | 7.6 |
| Power | 268 HP |
| Torque | 365 nm |
| Environmental class | — |
The weight of the Z7X engine according to the catalog is 190 kg. The engine number L7X is located to the right of the oil filter. The most frequent service requests are related to the engine not starting, stalling, or jerking due to a faulty sensor. Often, fuses and relays burn out, wiring deteriorates, and contacts oxidize, especially if the car is idle for a long time. The engine speed fluctuates. Unstable engine operation is usually caused by air suction through cracks in the vacuum tubes leading to the MAP sensor. Less frequently, it is due to a dirty throttle valve or a fuel pump malfunction. Unreliable ignition system regularly leads to engine misfires. The cause may be the coil, distributor, high-voltage wires, or spark plugs.
1.2-liter, 16-valve Renault D4F engine was produced by the company from 2001 to 2018 and was installed in compact models such as Twingo, Clio, Symbol, as well as Dacia Logan and Sandero. There was also a turbocharged version of this engine with a different index D4Ft. The D series also includes engines: D4Ft and D7F.
The 2.0-liter Renault F5R or 2.0 idE engine was produced on the assembly line of the corporation from 1999 to 2003 and used exclusively in the first generation Megane coupe and pre-facelift Laguna 2. This engine is distinguished by the presence of Siemens direct fuel injection. The F series includes: F1N, F2N, F2R, F3N, F3P, F3R, F4P, F4R, F4Rt, F7P, and F7R.
The 1.6-liter Renault H4M petrol engine has been produced by the French-Japanese consortium since 2004 and installed in their most popular models such as the Logan, Duster, Captur, and Arkana. This powertrain is one of the versions of the well-known Nissan HR16DE engine. The SCE line also includes: B4A, B4D, H4D, M4R, M5R, 2TR, V4U, and V4Y.
1.0-liter turbocharged engine Renault H4Dt or 1.0 TCe 100 is produced by the company since 2018 and installed in the fifth generation of the Clio model or the Captur crossover, which was created based on it. In Nissan-branded cars, this powertrain is designated as HR10DET. TCe series: D4Ft, F4Rt, H4Bt, H4Jt, H5Dt, H5Ft, H5Ht, M5Mt, and M5Pt.
2.0-liter diesel engine Hyundai D4EA or Santa Fe Classic 2.0 CRDi was produced from 2001 to 2012 and installed in almost all mid-size models of the company at that time. This engine was developed by VM Motori and is known on GM Korea models as Z20S. The D family also includes diesel engines: D3EA and D4EB.
The 1.5-liter, 16-valve Kia BFD engine was produced in South Korea from 1992 to 2001 and installed in the first and second generations of popular Ceed and similar Shuma models. This engine is practically a complete copy of the well-known Mazda B5-DE engine. Kia's own engines include: A3E, A5D, S5D, A6D, S6D, T8D, FEE, and FED.