Dimitiri, its on the starter side of the block, just in front of the starter above the engine mount arm. Its a 19mm plug... perhaps 17, but I'm fairly sure 19.
Its one of the those thing you need do some trial and error with to get at... above or below, extension or not, etc. I recommend removing this plug before draining the radiator and opening the cap... having no other opening in the system will significantly reduce the flow at first and give you a chance to get out of the way. Good luck, Jaime On Sun, Jul 1, 2012 at 1:28 PM, Dimitri Seretakis <dsereta...@yahoo.com>wrote: > I'm trying to drain the coolant in the engine block of my 71 280SL. I > can't find drain plugs. Does anyone know if they exist on this car? If not, > what is the preferred method of coolant drainage that would completely rid > the car of old coolant? > _______________________________________ > http://www.okiebenz.com > For new and used parts go to www.okiebenz.com > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > -- Jaime Kopchinski http://www.jaimekop.com/ _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com