The 1.4-liter Peugeot EP3 or 8FS engine was produced from 2007 to 2013 at the Duvrin plant and was installed on many popular small cars of the French concern such as 207 and 308. In 2010, a Euro 5 modification of this unit appeared under its own index EP3C.
Atmospheric engines of the Prince family: EP3, EP3C, EP6, EP6C, EP6CB.
In 2007, the 1.4-liter unit of the Prince family, created by BMW and PSA engineers, debuted on the Peugeot 207 and 308 models. A similar engine was installed on the Mini One as the N12B14A. By design, there is an aluminum cylinder block, a 16-valve cylinder head with hydraulic compensators, a timing chain, Vanos type phase regulators and a Valvetronic throttleless control system. Also, these units were equipped with an adjustable oil pump and an additional electric pump.
The 1.4-liter engines were only atmospheric and with distributed fuel injection, and among the similar 1.6-liter power units there were turbo engines with direct injection.
Specifications
| Production years | 2007-2013 |
| Displacement, cc | 1397 |
| Fuel system | injector |
| Power output, hp | 95 |
| Torque output, Nm | 136 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 77 |
| Piston stroke, mm | 75 |
| Compression ratio | 11.0 |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | yes |
| Turbocharging | no |
| Recommended engine oil | 5W-30, 5W-40 |
| Engine oil capacity, liter | 4.25 |
| Fuel type | petrol |
| Euro standards | EURO 4 |
| Fuel consumption, L/100 km (for Peugeot 207 2008) — city — highway — combined |
7.6 4.8 5.8 |
| Engine lifespan, km | ~200 000 |
| Weight, kg | 118 |
The engine was installed on:
- Peugeot 207 I (A7) in 2007 – 2013;
- Peugeot 308 I (T7) in 2007 – 2011.
Disadvantages of the Peugeot EP3 engine
- First of all, the motors of this series are famous for the low resource of timing chain components. Even up to 50,000 km, the stars, tensioner, damper and the chain itself may require replacement. This is especially true of the engines of the first years of production, then the reliability increased slightly.
- The second most popular problem of the motor is the wedging of the vacuum pump, which leads here to the breakdown of the exhaust camshaft and the sprocket gear of its drive. Often, the wedge of this pump turns into an open timing chain with bending of the valves.
- Power units of this family usually consume oil even at low mileage due to the occurrence of piston rings, wear of valve stem seals or crankcase ventilation membranes. They are also notorious for constant leaks of grease and antifreeze, and from many places.
- The weak points of such units include Vanos phase controllers and the Valvetronic system. The destruction of valve seats occurs regularly with their falling directly into the cylinders. And a number of units such as thermostats, pumps and lambda probes are considered here simply as consumables.
