What have you learned?
Check out the following 3 questions,
multiple choice possible.
You should not buy comparable cheap air filters because:
Cheap air filters can damage the air mass flow meter sensor.
Cheaper materials can cause leaking due to brittleness and poor fit.
The absence of flame-retardant is dangerous: The ember of a cigarette in contact with the filter medium could cause a fire.
Modern engines become increasingly powerful. Consequently the requirements for air filters become:
Lower and lower as modern engines are by default better protected against dirt.
Higher and higher as filters have to protect the highly precise engines.
Paper does not equal paper. What does MANN-FILTER usually do to reach the highest filter media quality?
Adding of synthetic fibre
Pleating, curing of the paper using heat
Use of activated carbon or nano fibres
Dying of the paper
Check my answers