Hi. I have a "hidden" leak in the cooling system. Only when motor is running, but no visible leak. Need to refill 1 litre after about 300 km. No white exaust, oil is fine. Anyone with the same experience? Thank you.

 

Check the carpet under the dash board, especially above the accelerator pedal and in the same place on the passenger side. If it is damp you have a heater core that is leaking. We had a similar issue. The heater core is not too bad to replace, plenty of How to videos on You Tube.

 

Good advice ^^^^^