Changing Coolant Fluid
 

Hi to everybody,,
I would like to change coolant fluid on my CLK 430 with 155.000 Km because i think that the coolant never be changed.........
wich is the best system to bleed the system ? because i do not know this engine and i do not want have some overheating problem due some air ..............
many thanks to all that can help me.
this forum is really usefull
Sorry fo my enghlish
Alberto