Please can anybody advise me best way to clear air lock on a 325i covertible 1988 cooling system. Tried valve on thremo housing. Tried removing header tank pipe(small) to bleed but no luck. Have read to take both top and bottom hose's off. Refit bottom hose,fill engine block through top hose untill visable then fill radiator, reconnect. Start up, heater on Hot+ blower on full set to 2000 rpm, take for a mile run come back release bleed screw on thermo housing and fill up up exspansion bottle....??
Many Thanks Humpo.
Air lock in cooling System on 325i Cab 1988
Moderator: martauto
-
jay528ise1985
- E30 Zone Newbie
- Posts: 101
- Joined: Sun Feb 06, 2005 11:00 pm
- Location: Colchester, Essex
I've just done a coolant change and found raising the front of the car a help in releasing some more air.
1989 BMW 320i 2.7 2 door saloon
-
powelly
- E30 Zone Squatter
- Posts: 1649
- Joined: Wed Dec 06, 2006 11:00 pm
- Location: On the scrap heap
Also check that you have water trickling out of the little hole just inside the coolant filler neck, if it's not the little tube will be block and cause constant air locks.
Le Mans Classic 2006-
GuyM
- E30 Zone Regular
- Posts: 256
- Joined: Mon Mar 28, 2005 11:00 pm
- Location: Chelmsford, Essex
this post - might help
try removing heater top hose - did the trick for me
http://www.e30zone.net/modules.php?name ... 2&start=25
try removing heater top hose - did the trick for me
http://www.e30zone.net/modules.php?name ... 2&start=25