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Oil pressure and oil level sensors from Pierburg for the aftermarket

MS Motorservice International GmbH has added oil pressure sensors and oil level sensors from Pierburg to its product range. The spare-parts specialist relies on proven expertise in sensors and oil supply, and plans to expand the two sensor groups in the long term. With the oil pressure sensors, Motorservice currently covers over 38 million passenger cars and utility vehicles. The oil level sensors are available for a worldwide fleet of more than 93 million passenger cars.

A reliable supply of the relevant engine oil to the engine is crucial for smooth engine running and durability. Motorservice offers high-quality components including oil coolers, oil pumps, oil filters and oil pressure and oil level sensors in the aftermarket. 

Oil pressure sensors

Oil pressure sensors continuously measure the oil pressure in the engine and send the information to the engine control unit. The sensor thereby ensures a sufficient oil supply and prevents consequential damage. Modern vehicles also use the data from the oil pressure sensor for optimum engine performance and optimised fuel consumption. Unlike oil pressure switches, which only trigger an alarm when the oil pressure falls below a certain value, oil pressure sensors provide precise values. If the oil pressure sensor is triggered when the oil pressure is too low, this can indicate oil loss, a defective oil pump or other defects.

Oil level sensors

The oil level sensor records the amount of oil in the engine depending on the operating state, and is a key component of the engine management system. Today, the sensor is often mounted on the bottom of the oil pan and measures the oil level. Depending on the version, the sensor also detects the temperature and the engine oil grade. This information is sent to the control unit. 

There are three categories of oil level sensors: float, ultrasound and heat. Motorservice offers the ultrasonic type of oil level sensors. The ultrasonic sensor is mounted in the oil pan from below and emits ultrasonic waves in the oil. These are reflected by the surface of the oil (air / oil surface). The sensor measures the time from the transmission of the ultrasonic wave to the arrival of the reflected ultrasonic wave. In this way, the fill level can be measured and output precisely. To prevent errors, an average is calculated from several measurements. In addition, the engine control unit detects special situations, such as engine start. The ultrasonic sensors also record the temperature. This also has an influence on the measurement. Special advantages of the sensor are short response times and high accuracy.