Oil pressure sensor for your car

Oil pressure sending unit for Top models
- BMW 3 Series oil pressure sensor
- VW GOLF oil pressure sensor
- BMW 5 Series oil pressure switch
- AUDI A4
- MERCEDES-BENZ C-Class oil pressure sensor
- FORD FOCUS oil pressure sensor
- MERCEDES-BENZ E-Class oil pressure switch
- BMW 1 Series
- FORD FIESTA oil pressure sensor
- AUDI A3 oil pressure sensor
- AUDI A6 oil pressure switch
- VW POLO
- VAUXHALL ASTRA oil pressure sensor
- VW TRANSPORTER oil pressure sensor
- VW PASSAT oil pressure switch
- MINI Hatchback
- NISSAN QASHQAI oil pressure sensor
- HONDA CIVIC oil pressure sensor
- VAUXHALL CORSA oil pressure switch
- FORD MONDEO
Other Electrics auto parts
Your Oil pressure sensor worn out? » Read more about common malfunctions • Repair • Replacement manual
Always keep an eye on the oil pressure thanks to the oil pressure sensor
Oil pressure sensors are sensory components that are very important for the engine management system. They constantly inform the driver and the control unit of the current pressure in the lubrication system. This serves to prevent particularly severe damage in case the lubrication in an internal combustion engine fails. The oil pressure sensor is also called the oil pressure reader. The name "oil pressure switch", however, is incorrect and should not be used.
Oil pressure sensor design
The oil pressure sensor consists of a sturdy housing. The case is divided into two chambers, which are separated by a flexible or flexibly mounted diaphragm. A chamber is connected to the engine's oil circuit and is permanently perfused by it through a hollow screw. The diaphragm is connected to a small potentiometer. The higher the pressure rises, the stronger the diaphragm compresses the potentiometer's sensor, thus changing the voltage. This change in voltage is converted to the value of the oil pressure and forwarded to the display on the instrument panel and the control unit.
Function of the oil pressure sensor
The engine's oil circuit usually relies on an oil pressure pump, which promotes oil proportional to the speed of the engine. The faster the engine runs, the higher the oil pressure rises in order to permanently and sufficiently lubricate the many moving parts. A mechanical oil pump usually only allows for limited regulation of the oil pressure. Yet, given normal utilization of the engine, this is also not needed. High-performance engines, however, require a finer control of the oil pressure. This is achieved by means of pressure valves or electrically-operated oil pumps. For normal vehicles, it is always important to know whether the oil pressure is sufficient to ensure lubrication of the engine.
Reasons for a loss of lubrication
All moving parts in an engine must remain lubricated at all times. Due to the high temperatures and rotational speeds in an engine, damage to bearings, shafts, pistons and valves can quickly occur if this lubrication is lost.
Four reasons can cause a loss of the lubricating film:
If the canals in the engine are blocked, the flow of oil is interrupted at that point. In this case, oil pressure drops rapidly.
If the motor becomes too hot, the oil can become too thin. In this case, the oil gets past the seals that serve to keep it in the lubrication circuit and the oil pressure decreases. Also, if the oil pump is jammed or fails completely, no oil pressure can be built up. These various reasons necessitate a permanent sensory and visual control of the oil pressure sensor. Oil pressure sensor defects An oil pressure sensor can have three types of defects:
- -Leakage
-Clogging
-Overheating
If the canals in the engine are blocked, the flow of oil is interrupted at that point. In this case, oil pressure drops rapidly.
If the motor becomes too hot, the oil can become too thin. In this case, the oil gets past the seals that serve to keep it in the lubrication circuit and the oil pressure decreases. Also, if the oil pump is jammed or fails completely, no oil pressure can be built up. These various reasons necessitate a permanent sensory and visual control of the oil pressure sensor. Oil pressure sensor defects An oil pressure sensor can have three types of defects:
- - Mechanical, internal defect
- Failing gasket
- Electronic defect
Car oil pressure sensor : best-selling products