Car maintenance (MNT) is a set of measures aimed at assessing the technical condition of a car to prevent malfunctions and to ensure their timely elimination. It is recommended to undergo maintenance regularly, usually at least once a year. Car manufacturers recommend undergoing maintenance after 10-15 thousand operational kilometers, taking into account the car operation conditions. The scope of maintenance work is determined by the requirements of automobile makers, but, as a rule, it includes: control, diagnostic, adjustment, lubrication, filling, electrical work, and fastening work. There are three types of maintenance: MNT-1 is carried out after 10-15 thousand operational kilometers in order to identify and eliminate minor malfunctions, replace engine oil, oil filter and adjust units; MNT-2 is carried out after about 3 thousand operational kilometers and comprises more complex activities, including the removal of individual units and parts of the car; MNT-3 is carried out after about 60 thousand operational kilometers and includes a detailed inspection of the car, as well as the replacement of engine oil, oil filter, fuel filter, air filter, spark plugs, timing belt, brake fluid, checking the wheel alignment adjustments.