Thermostat Change - BLEEDING AIR FROM COOLING SYSTEM

[X5-D-Sport]

I People,
The engine temperature readings were looking low, now it's getting colder didn't always get up to normal running temperature, so assumed the stat was jammed partly open, probably the original item 136,000 miles later, so was overdue for a change..

I have just looked up on YouTube where the thermostat lives & what to strip to change it....
No problems there then...

However, wondering if there are some air bleed points lurking around the cooling system here n there, or does this vehicle completely self bleed & just need topping up and drive away ???

Any facts about this would be most helpful please, before I take her to pieces.... and I don't want to blow a head gasket with an air-lock finding out the hard/expensive way...

:xmasgrin:  Many thanks in advance  :xmastongue:

[shadrack]

should self bleed

[X5-D-Sport]

Many thanks.

Was just wondering if there were any hidden bleed nipples lurking any where.

[Denis O]

If you can, have the cars nose in the air. Any trapped air will try to find the highest point so make that the expansion bottle top.

It was the only way to do an e39 540.

[X5-D-Sport]

Mine's a 3.0 Diesel 2004.....  anything special to look out for, bleeding the air out ??

[Horizon]

Run up to temperature with the cap off, all. The heater controls on full heat , as mentioned a good idea to have it nose high, some BMW reds vavw a bleed screw at the top of the red, lee e loose until a stream of war
Ter appears. 

[moar]

Alot of poor info dished out here.

Take the bleed screw off, start the engine with heater on low fan and to the face. Fill the expansion tank until fluid comes out of the bleed screw hole, screw the bleed screw on by only one turn and wait for the bubbles to disappear then tighten down the bleed screw. Cool down and top off.

[Horizon]

[quote="moar"]
Alot of poor info dished out here.

Take the bleed screw off, start the engine with heater on low fan and to the face. Fill the expansion tank until fluid comes out of the bleed screw hole, screw the bleed screw on by only one turn and wait for the bubbles to disappear then tighten down the bleed screw. Cool down and top off.
[/quote]

Is there an echo in here !  )

We've missed your self important advice, Welcome back :'(

[moar]

I've been busy 

You need to fill up with the screw off until water comes out.

You version didn't make this clear.

[X5-D-Sport]

Thank you guys, appreciated... doing this job tomorrow