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X3 E83 (2004 - 2010)
Talk about the E83 BMW X3 in this forum!

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  #1  
Old 05-09-2013, 12:27 PM
bartmiester bartmiester is offline
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x3 top radiator hose

I have a 04 x3 with the 2.5. it keeps blowing the top hose. any ideas?
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  #2  
Old 05-09-2013, 02:27 PM
Grabby544 Grabby544 is offline
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Have you bled all of the air in the system when you change out the hose?

http://blog.bavauto.com/13140/bmw-co...bleeder-screw/

This may help... I hope.

Last edited by Grabby544; 05-09-2013 at 02:49 PM. Reason: Add BavAuto link
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  #3  
Old 05-09-2013, 02:51 PM
bartmiester bartmiester is offline
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hose

yes I did. it blew out the other end now. Do you think it could be a head gasket? no coolant in oil
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  #4  
Old 05-09-2013, 03:07 PM
Grabby544 Grabby544 is offline
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I don't think its the head gasket, unless you see oil in the coolant or coolant in the oil.

Perhaps a clog in the system, or bad radiator cap? It sounds like something is not allowing the pressure to bleed off or something is causing the pressure to build up so much that the system can't correct this.

Can you provide more details? When this happens? What maintenance you've performed? How many times its happened? Any strange circumstances?

I'd try draining the system, inspecting for clogs, and redoing the bleed.
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  #5  
Old 05-09-2013, 03:19 PM
bartmiester bartmiester is offline
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hose

Car has 112k on it. just got it 3 months ago 1 owner. Hose just blew a few days ago. First the left side. Fixed it. bleed system drove it a few more days blew right side. temp has been fine right in the middle. Iam gonna try a new cap and hose and go from there.
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  #6  
Old 05-09-2013, 03:29 PM
bartmiester bartmiester is offline
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hose

Thanks for your help. I hope its not a head gasket.
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  #7  
Old 05-09-2013, 05:02 PM
Grabby544 Grabby544 is offline
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Re: x3 top radiator hose

Change out the clamps too

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  #8  
Old 05-09-2013, 05:04 PM
Supercourse Supercourse is online now
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Quote:
Originally Posted by bartmiester View Post
..... temp has been fine right in the middle. Iam gonna try a new cap and hose and go from there.
Temp. gauge in BMWs is quite heavily damped.

You could easily have local over-heating in that area and the gauge would not let you know - until it suddenly heads for the red in one swift movement.

Has the expansion tank been replaced by previous owner according to service records?

Has the coolant been changed every 4 years with the right stuff as specified in the Warranty & Service Guide for the 2004 model?

A new cap is a good start, but you could have something else wrong causing a flow restriction and pressure buildup.
The A/T cooler thermostats in the base of the expansion tank are known to degrade over time and could have unexpected impacts.
Is the electric rad. fan coming on at the right times and right speed?

Do you mean the same hose keeps bursting, or first one and then a separate one?

Good luck - you have to be careful with the cooling system in these cars or it can bite you.
Other problems you can generally fix more when it suits you.
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  #9  
Old 05-13-2013, 11:36 AM
bartmiester bartmiester is offline
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hose

The same top hose keeps blowing off. I ordered a new hose and cap to start with. Fans do come on. What would be the proper procedure for bleeding the system?
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  #10  
Old 05-13-2013, 12:08 PM
Grabby544 Grabby544 is offline
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Quote:
Originally Posted by bartmiester View Post
The same top hose keeps blowing off. I ordered a new hose and cap to start with. Fans do come on. What would be the proper procedure for bleeding the system?
This isn't perfect, but should point you in the right direction.

http://blog.bavauto.com/13140/bmw-co...bleeder-screw/

http://www.bimmerfest.com/forums/sho...d.php?t=273609

Try searching this forum as well.

Also, is the lower RAD hose cold, while the upper one is hot??

Last edited by Grabby544; 05-13-2013 at 12:09 PM. Reason: Add queston
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  #11  
Old 05-13-2013, 02:38 PM
bartmiester bartmiester is offline
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hose

Thanks, Parts didn't come in yet. Ill keep you posted. Thanks for your help
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  #12  
Old 05-14-2013, 02:41 PM
bartmiester bartmiester is offline
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hose

got the parts bleed the system let it run for awhile. Bottom hose isn't hot top hose is? What does this mean?
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  #13  
Old 05-14-2013, 05:07 PM
Grabby544 Grabby544 is offline
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Quote:
Originally Posted by bartmiester View Post
got the parts bleed the system let it run for awhile. Bottom hose isn't hot top hose is? What does this mean?
Hopefully nothing, but... it could (Special Emphasis on COULD) mean that the thermostat is bad, or water pump. But I don't think the water pump is bad.

Drive it around for awhile (if it holds ) and check the lower hose to see if the temp rises some. I hope your problem is solved!! I'd go for the thermostat next.

Did you see any rust or flakes in your coolant at all??
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  #14  
Old 05-14-2013, 05:29 PM
bartmiester bartmiester is offline
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The old hose had a lot of crap inside.do you think I should go for a thermostat? I hate to drive it and blow out a hose again.
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  #15  
Old 05-14-2013, 05:38 PM
Grabby544 Grabby544 is offline
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Quote:
Originally Posted by bartmiester View Post
The old hose had a lot of crap inside.do you think I should go for a thermostat? I hate to drive it and blow out a hose again.
You need to flush all of the crap out of your radiator to include the engine block drains.

Personally, I'd replace the thermostat as well. But at a minimum flush, then flush, then flush, followed by a flush the cooling system! If there was alot of crud your water pump could be fubar, but I'd start with the thermostat.

Can you provide a PIC of the crap or atleast describe it??

Color?
Size?
Amount?
ETC??
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  #16  
Old 05-14-2013, 05:49 PM
bartmiester bartmiester is offline
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just crap on the walls of the hose. brownish in color.nothing big
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  #17  
Old 05-14-2013, 05:53 PM
Grabby544 Grabby544 is offline
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Oh, that's not too bad. I thought you meant chunks of stuff.
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  #18  
Old 05-20-2013, 12:53 PM
bartmiester bartmiester is offline
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Hey Grabby544,
Thanks for your help. New cap and hose seemed to do the trick. Bled the system really well have about 50 miles on it sense. No problems yet. Hopefully that took care of it.Thanks again.
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  #19  
Old 05-20-2013, 01:32 PM
Grabby544 Grabby544 is offline
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Re: x3 top radiator hose

Fingers crossed bro, I hope it holds!

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  #20  
Old 05-30-2013, 01:45 PM
Grabby544 Grabby544 is offline
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Re: x3 top radiator hose

So... Still running good?

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  #21  
Old 06-03-2013, 01:33 PM
bartmiester bartmiester is offline
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So far so good.
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  #22  
Old 06-03-2013, 02:13 PM
Grabby544 Grabby544 is offline
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Re: x3 top radiator hose

Sweet!


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