radiator flush help

[simply x]

i just flushed my radiator...then i put back the coolant through the expansion tank...now the car is overheating...am i doing the right thing? thanks!

[mywidebody02]

Originally Posted by simply x

i just flushed my radiator...then i put back the coolant through the expansion tank...now the car is overheating...am i doing the right thing? thanks!

Adding coolant:
Note:
The tank mark indicates the fluid level at approx. 20  C. Use only recommended coolant,
refer to BMW Service Operating Fluids MG17.
1. Turn on ignition.
2. Set heating controller to maximum temperature 3. Set fan to low setting. This opens the heating valves and starts the auxiliary water pump.
4. Perform filling operation slowly.
5. Pour coolant into coolant expansion tank up to max. cold fill level.
6. Close vent plug when bubble-free coolant emerges 7. Close coolant expansion tank.
Vent cooling system and check for leaks.
RA Draining and topping up coolant (M62, M54 and M57) BMW AG - TIS 29.07.2010 09:28 Issue status (07/2006) Valid only until next DVD is issued Copyright Page - 1 -

[simply x]

thanks!....i appreciate it, so far no leak....so pouring the coolant while the engine was turned off then turned it on when the A/C on caused the overheating? should i flush my radiator again to perform this procedure you've provided?...

[Weasel]

It sounds like you forgot the bleed screw and have air pockets. Remove the fill cap AND the black plastic screw right by it, then fill it up till water comes out of both holes. Put the screw and cap back in/on and you should be good.

[simply x]

thanks guys! i appreciate it, i'll do it tonight...i hope everything goes well