Draining All coolant- how?

(2011-06-25 14:20:23) 1. S Says: I unscrewed drain plug big mercedes capacity 14quart),but could only fill 7qts. because not drained engine block plugs? I need to tilt car towards drainplug?2. Neil B Says: You can't drain all the coolant fully on any car really, which is why people do a coolant flush (run clean water through until it runs out clear), although depending on which Merc it is you will have an engine block drain plug as well as the rad drain plug. It's a ***** to get to, however, so you're better off just flushing it and filling mostly with concentrated coolant.3. loonatic72 Says: Buy a flush kit, that will be your easiest way. Tag: Draining All coolant- how?