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teri60wat
12-27-2008, 10:30 PM
Parked my 89 535i (sexy) in garage due to cold weather...start it up a week later..ten minutes later- whoosh ..look back steam rolling out from under hood... quickly turn it off ... anti freeze pools under front of car... look under hood to find hose burst .. so I will replace hose, fill her back up with anti freeze .. sounds too simple what else do I need to know???? What happened???
:cry:

bjorni520i
12-28-2008, 12:31 AM
it happends on ALL 5 series if you dont check the cable from time to time, happend to me too but in the summer, for me it whas the clamp that splitted the hose so i bought a new one, and i put som rubber sealant under the clamp, had no problems after that

ashton540
12-28-2008, 12:38 AM
This happened to me a couple weeks ago in my e39 540. I replaced it filled it back up and my car was still over heating and losing coolant. I check it out and it ended up being the may expansion tank had cracked as well. Im not sure if this was just a coincedence or not but replace the expansion tank as well and things have gone well since.

ross1
12-29-2008, 09:52 AM
Could have just been an old hose. At the least inspect the others to avoid a repeat.
Other cause could be overheating due to; Frozen coolant not allowing circulation, low coolant level, head gasket failure, engine tuning issues, restricted exhaust.
Once back together watch the temp gauge and coolant level closely. Your engine does not suffer overheating well.
I see you are new to the forum and perhaps BMWs also. A little searching about cooling systems and overheating might save you a lot of headaches.

EyeDoc1
12-30-2008, 08:43 PM
Seems the upper hoses are slightly more prone to failure than lower hoses. Generally that's good, since uppers are usually easier to change than lower. If you get overheating, you'll need to bleed the system. This is usually fairly easy, and while I'm no expert, the screw is usually on the top of the radiator, drivers side, and it's usually marked in German...I can't recall it exactly..."Entluft" something or other. While filling the radiator/overflow opening, I've opened that plastic screw slightly with a mondo Phillips screwdriver and heard air escaping. Hope this was right, but no overheating was noted.

Hope this helps as well.

Regards,

Christen

goon2
10-10-2010, 02:08 PM
i had same prob

robertobaggio20
10-10-2010, 02:26 PM
Parked my 89 535i (sexy) in garage due to cold weather...start it up a week later..ten minutes later- whoosh ..look back steam rolling out from under hood... quickly turn it off ... anti freeze pools under front of car... look under hood to find hose burst .. so I will replace hose, fill her back up with anti freeze .. sounds too simple what else do I need to know???? What happened???
:cry:

I had this happen exactly 2 weeks ago. Major pia. My suggestion is to change ALL coolant hoses in your car, as well as the radiator tank cap and bleed screw. All of this is cheap but some coolant hoses may not be easily accessible, so I suggest you purchase the hoses anyway and change them out as soon as some other major repair or servicing becomes due.

Another thing, see if you can replace the hoses with steel braided coolant hoses. Ebay has them in abundance. They are far less prone to breakage. Good luck and let us know how it goes.

robertobaggio20
10-10-2010, 02:29 PM
Remember to bleed your car twice. First, when you first replace the coolant you lost. The second will be two days later, after you've driven the car in that time, in the morning when the car is cold....unscrew both the bleed screw and tank cap, fill up with water till it runs out of the bleed screw purging tons of bubbles along the way, start the engine, keep pouring in water until no more bubbles come out of the bleed screw, replace bleed screw, fill up water in the expansion tank until it overflow, replace tank cap, don't worry about compression the coolant....