Variable mechanical automotive coolant pump

A variable mechanical automotive coolant pump comprising:

• a rotor shaft which is configured to rotate;
• an impeller wheel which is co-rotatably connected with the rotor shaft, the impeller wheel comprising a discharging radial outside;
• a static guiding cylinder;
• a control sleeve comprising a hollow-cylindrical control sleeve body having a radial outside, the control sleeve being configured to be non-rotatable and to be guided axially slidable within the static guiding cylinder so as to regulate a flow rate of the variable mechanical automotive coolant pump by closing or opening the discharging radial outside of the impeller wheel;
• and
• at least one guiding device which is configured to guide the radial outside of the control sleeve within the static guiding cylinder,
• wherein,
• each of the at least one guiding device directly contacts the static guiding cylinder.