The technology of the exhaust gas temperature sensors in the spare part specialist’s range is based on semiconductor resistors with positive temperature coefficients (PTCs). This means that when the temperature rises, the sensor’s resistance increases. Each resistance level measured is allocated a temperature in the control unit. If the exhaust gas temperature becomes too high, appropriate measures are taken to protect components such as turbochargers or catalytic converters from overheating. Reliable functionality and high quality are therefore essential for the sensors: Motorservice sensors impress with high temperature resistance in the range from - 40° to + 1,000°C, along with a proven high level of accuracy and a short response time.
In addition, the sensors demonstrate excellent product quality, high long-term stability and a high degree of resistance to mechanical, thermal and chemical strains. Finally, as a sales organisation for Rheinmetall’s aftermarket activities, Motorservice acquires a large proportion of its range internally from within the group, including the subsidiaries Kolbenschmidt and Pierburg. The internationally active spare parts specialist also has the know-how and high quality standards of a large international automotive supplier.
Motorservice’s product range also impresses as far as applicability is concerned: two of its sensors alone – item numbers 7.08369.00.0 and 7.08369.01.0 – can be installed in over 4.6 million and over 4 million vehicles worldwide respectively. In Europe alone, the various exhaust gas temperature sensors from the complete range are in use in approximately 34 million vehicles. Motorservice also has plans in place to keep expanding the range. This means that, in addition to PTC sensors, NTC sensors will be added to the range. In contrast to PTC sensors, the resistance of an NTC sensor falls when the temperature rises.
Tips for installation
To ensure that this important component can function reliably, you should observe the following during mounting: the sensor must be inserted into the mounting hole in a straight line – caution: do not tilt it!