The 1.8-liter 16-valve Renault F4P engine was produced at Cleon Plant from 1998 to 2005 and was installed on the first generation Megane and Scenic, as well as the first two generations of the Laguna. This power unit can also be found under the hood of the Proton Waja model, famous in Malaysia.
The first 16-valve F-series power unit appeared on the restyled Laguna in 1998. This 1.8-liter engine differed from the 8-valve counterparts of the new DOHC cylinder head with hydraulic lifters, a split coil ignition system and a phase shifter on the intake camshaft. The in-line 4-cylinder cast-iron block and timing belt drive came from its predecessor.
Unlike other brothers in the series, this unit had only a couple of modifications: one for Megane and Scenic of the first generation, the second is slightly more powerful for the first and second Laguna. For some time, this motor was installed on the popular Malaysian model Proton Waya. This engine was assembled at the main engine plant of the French concern in Cleon.
The engine was installed on:
- Renault Laguna 1 (X56) in 1998 – 2001; Laguna 2 (X74) in 2001 – 2005;
- Renault Megane 1 (X64) in 2001 – 2003;
- Renault Scenic 1 (J64) in 2001 – 2003;
- Proton Waja 1 in 2002 – 2003.
|Power output, hp||115 – 120|
|Torque output, Nm||158 – 170|
|Cylinder block||cast iron R4|
|Block head||aluminum 16v|
|Cylinder bore, mm||82.7|
|Piston stroke, mm||83|
|Recommended engine oil||5W-30, 5W-40|
|Engine oil capacity, liter||5.5|
|Euro standards||EURO 2/3|
|Fuel consumption, L/100 km (for Renault Laguna 2002)
|Engine lifespan, km||~350 000|
Disadvantages of the Renault F4P engine
- A completely reliable iron motor is famous for its regular electrical failures. In addition to sensors and ignition coils, weak wiring delivers a lot of trouble here.
- Another weak point of the engine is the phase shifter on the intake camshaft. It can fail and start to crack even before 100,000 km, and replacement is not cheap.
- Many pages on specialized forums are devoted to finding the cause of unstable engine operation. Most often, cleaning the throttle and nozzles or eliminating suction in the intake helps.
- This unit constantly loses oil due to leaks, usually grease oozes through the camshaft or crankshaft oil seals, from under the valve cover or through the dephaser valve.
- A low resource in this motor is distinguished by lambda probes, as well as its pillows.