The 1.6-liter Peugeot EP6 or 5FW engine was assembled at the company’s factory from 2006 to 2013 and installed on many popular concern models of its time, such as 207 or 308. Since 2010, a Euro 5 modification of this engine has been produced under its own index EP6C.
Atmospheric engines of the Prince family: EP3, EP3C, EP6, EP6C, EP6CB.
In 2006, the Peugeot 207 CC cabriolet debuted with a 1.6-liter engine from the Prince family, which was created by BMW and PSA engineers. The same engine was installed on the Mini as the N12B16A. The design of the motor is quite progressive for its time: an aluminum cylinder block, an aluminum 16-valve cylinder head equipped with hydraulic compensators and a timing chain drive, Vanos-type phase regulators on two shafts, and a Valvetronic throttleless control system. These units also received an adjustable oil pump, as well as an additional electric pump.
This atmospheric power unit was equipped only with distributed fuel injection, however, in the lineup there were also direct injection turbo engines of different forcing.
Specifications
| Production years | 2006-2013 |
| Displacement, cc | 1598 |
| Fuel system | injector |
| Power output, hp | 120 (5FW or VTI 120) 114 (5FP or VTI 115) |
| Torque output, Nm | 160 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 77 |
| Piston stroke, mm | 85.8 |
| 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 308 2008) — city — highway — combined |
9.3 5.2 6.7 |
| Engine lifespan, km | ~200 000 |
| Weight, kg | 117 |
The engine was installed on:
- Citroen C4 I (B51) in 2008 – 2010;
- Citroen C4 Picasso I (B58) in 2008 – 2010;
- Peugeot 207 I (A7) in 2006 – 2013;
- Peugeot 308 I (T7) in 2007 – 2011;
- Peugeot 3008 I (T84) in 2009 – 2011;
- Peugeot 5008 I (T87) in 2009 – 2011.
Disadvantages of the Peugeot EP6 engine
- The most famous problem of such units is the very low resource of the timing chain, sometimes the replacement of the tensioner, damper, star and the chain itself is required already by 50,000 km. Many substitutes are now offered, which usually last a little longer.
- Also, often owners of cars with this engine encounter a wedge of a vacuum pump, which leads either to a breakdown of the exhaust camshaft and the gear of its drive sprocket, or to a break in the timing chain with valve bending and subsequent engine overhaul.
- These units are also famous for oil consumption, and it appears even at low runs. The reason is usually the occurrence of rings, wear of valve stem seals or crankcase ventilation membranes, and carbon deposits from burnt oil clog the intake manifold and prevent the valves from closing.
- A lot of trouble is caused by failures in the operation of the Vanos phase regulators and the Valvetronic system, the destruction and often falling out of valve seats, regular leaks of lubricant and antifreeze, and components such as a thermostat, water pump and lambda probe are practically consumables.
