subject: Five Car Protection Maintenance [print this page] 5. The maintenace of power steering system The car needs cleaning and maintenance every 40000km-45000km, and it also needs cleaning and maintenance meeting steering system leakage problems or changing the power steering parts. Clear the harmful sludge, varnish in the system and the turn difficult at low temperatures, stop and prevent the leakage of power steering fluid, clear turn noise and completely replace the old brake fluid shift. Do the maintenance once every 50000 km driving or once when there is the advanced or delayed reaponse of ABS.