I tried searching, but no luck. Has anyone flushed their coolant in E60 530? Is there a bleed screw to let the air out of the system like on the older BMWs? If there is, where is it located, if not, how do you get the air out of there?

just fill the cooling system, and have a friend rev it up to around 4000 rpm, and top off the fluid, and make sure you see the fluid recirculating, then cap it off. then turn off the car.

Thanks man. I'll try this tomorrow.

cooling system bleed
is that a e60 with a N52 engine here bleeding instructions

Only when refilling!
Important!
Do not fill coolant expansion tank over MAX level as overfilling will cause the coolant to overflow. This may give rise to traces of residual coolant on the expansion tank or in the engine compartment and wrongly suggest possible leakages.



http://na-prod.bmw-serviceweb.de/web_root/modules/webtis/data/data/gb/grafik/GR/RA1/704/-10.png

Only when refilling!
Use only recommended coolant (http://na-prod.bmw-serviceweb.de/web_root/modules/webtis/show_doc.html?infoobj_id=1101685&dokart_id=&strike=1&infoobj_kz=).
Perform filling operation slowly.
Adjust coolant level to MAX.


http://na-prod.bmw-serviceweb.de/web_root/modules/webtis/data/data/gb/grafik/GR/RA1/704/-08.png

Close coolant expansion tank.
Installation:
Close cap (1) until the arrow marks line up.



http://na-prod.bmw-serviceweb.de/web_root/modules/webtis/data/data/gb/grafik/G/RRA/000/0-A/CHT/UNG.png

Important!
The following venting procedure is necessary e.g. when a part is replaced in the cooling system or when the cooling system is refilled.



http://na-prod.bmw-serviceweb.de/web_root/modules/webtis/data/data/gb/grafik/G/RRA/000/0-H/INW/EIS.png

Only when venting!
Note:
Fill coolant expansion tank up to lower edge of filler neck with recommended coolant (http://na-prod.bmw-serviceweb.de/web_root/modules/webtis/show_doc.html?infoobj_id=1101685&dokart_id=&strike=2&infoobj_kz=). Close cap on expansion tank.
Do not open the coolant expansion tank cap during the venting procedure.

1.
Connect battery charger.
2.
Switch on ignition.
3.
Set heater to maximum temperature, activate "Automatic" button, then reduce fan to lowest setting.
4.
Press accelerator pedal for 10 seconds to floor. Engine must not be started.
5.
The venting procedure is started when the accelerator pedal is pressed and takes approx. 12 minutes.
6.
Then top up fill level in coolant expansion tank with 250 ml above max (see illustration).
7.
Check cooling system for leaks (http://na-prod.bmw-serviceweb.de/web_root/modules/webtis/show_doc.html?infoobj_id=1101685&dokart_id=&strike=3&infoobj_kz=).
8.
If the venting procedure has to be carried out several times, allow DME to drop completely (ignition key removed for approx. 3 minutes), then repeat from Point 3.


http://na-prod.bmw-serviceweb.de/web_root/modules/webtis/data/data/gb/grafik/GR/RA1/704/-50.png

Only when venting!
Perform filling operation slowly.
Fill coolant expansion tank with 250 ml above max.
250 ml corresponds to A=18 mm.


Thanks to fc3stech. Thanks a lot.

uh, just bring it in? its under warranty 5/50 :rolleyes:

not anymore