The fuel filter catches undesirable dirt particles, such as dust, rust, water and deposits from the tank, and thereby protects the extremely sensitive injection set from damage.
The oil filter traps various pieces of dirt, metal and non-metal particles, soot and carbon deposits in the engine oil. If a filter other than a Škoda genuine oil filter is used, it could happen that the filter prematurely clogs up and reduces the flow-through of oil, or there could be a leak of unfiltered oil into the engine. An undesirable consequence could be the overheating of the engine or a seizure.
The air filter ensures the input of clean air into the engine and also has a positive influence on the noisiness of the suction tract. A poor quality or excessively dirty air filter disturbs the correct ratio of air and fuel in the combustion system, which negatively affects fuel consumption.