MS Motorservice International is now supplying a range of 150 air mass sensors which, thanks to their design, offer a quick and easy solution to replacement across a huge range of vehicle models.

If an air mass sensor is defective, it can supply incorrect input signals to the engine control unit, increasing fuel consumption and exhaust emissions. This can also lead to misfires, black smoke, poor acceleration, idling problems including stalling, and increased engine wear due to oil dilution caused by an excessively rich mixture.

To guarantee an exceptionally fast and high-precision measurement, modern air mass sensors from Motorservice operate on the hot-film principle. The hot-film sensor is heated to a constant temperature of around 120 - 180°C above ambient temperature. The air cools the hot-film sensor as it flows in. An integrated electronic module then adjusts the heating current so that it is proportional to the air mass and - depending on the version - is transmitted to the engine control unit as a voltage or frequently modulated square-wave signal. Two separate measuring sensors also enable pulsation and return flows that can falsify a measurement to be detected.

Manufacturers generally weld built-in air mass sensors in the flow pipe. Therefore, the two components have to be replaced together in the event of a possible malfunction. This is not the case with some of the components from Motorservice. Here, the plug-in probe is screwed into the flow pipe, which has a manufacturer-specific design. This enables it to be replaced separately. With special tools for replacement of air mass sensors, Motorservice also offers a practical solution for the aftermarket sector. The plug-in probes are also available individually. This saves money and valuable resources.

Alongside the excellent functionality and easy and cost-effective mounting, Motorservice air mass sensors also offer excellent coverage. For example, the air mass sensor with item number 7.22684.18.0 can be used for a total of 420 applications (KTyp) for the Volkswagen, Audi, Seat, Škoda and Ford brands. The entire range of Motorservice air mass sensors includes just over 150 articles, which cover a total of more than 5,500 applications worldwide.