- Checking the oil pressure should be done on a warm engine (~80°C).
- Connect a pressure gauge instead of the oil pressure sensor (to remove the sensor, use a 22mm high socket head).
- Start the engine and measure the oil pressure at various crankshaft speeds.
Oil pressure values:
- at 1000 min⁻¹: minimum 1.2 bar
- at 3000 min⁻¹: minimum 3.5 bar
- Turn off the engine and remove the pressure gauge.
- Install the oil pressure sensor with a new seal.
- Check the engine oil level.
The closed-loop smart cooling system includes a water pump, a cross-flow radiator, a radiator fan with an electric cord, a thermostat, a heater core, hoses and temperature sensors. The radiator fan with an electric cord is activated when the contact temperature sensor is triggered. On models with an automatic transmission, some of the fluid circulates through the transmission fluid cooler
(Text of the original source on this website: RenaultBook)