Quote:
Originally Posted by kado1976
Three dots to red????
And ET???
I dont get it
|
Listen Padawan... The secret of the three dots is something that mere mortals are not capable of handling. Its like a password into the secret ubergermanclubthingus (real german word actually) of BMW's.
If youre ready....
on your dash board, above the center vent is a wheel with red and blue dots. 1,2,3 red and 1,2,3 blue. On some models it has a white line in the center, for, you know, the center.
I'm only a level 7 BMW jedi having owned 3 of them, so I only loosely get the concept of the three dots, but dont pretend to UNDERSTAND the three dots.
Basically, if its in the red, hot air will come out of the vents. How is this different than mission control below (HVAC)? I have no idea. Thats the mystery. You will never get that to the right temp. Its either too hot or too cold.
So, long story short, to bleed the coolant, turn it all the way to the 3 red dots (make sure it goes all the way, it kind of 'pauses' at the top).
the ET is expansion tank and you will hear it spoken about in angered tones the longer you stay around BMW's. BMW's dont pressurize directly through the actual radiator, thats why the cap is on the ET. The ET is both a overflow tank, pressure regulator and reservoir. They are notorious for bursting at the least opportune time (shortcut through the ghetto?). Its been suggested that this is in part due to the fact that the design of the tank encourages you to considerably overfill the max level. At that point its pretty simple. Too much pressure, no place to go, Pop!
So, when filling the ET, pay attention to the float, and never fill past that line.