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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 08-10-2006, 03:04 PM
adisman adisman is offline
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Location: Los Angeles
 
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Mein Auto: 1997 528i
Exclamation 1997 E39 Radiator Overflow Leak

I have a 1997 528i. I see a slight leak coming from the elbow on the driver's side of the radiator. This is the elbow that is connected to a hose and runs back to the coolant reservoir.

Does anybody know if that is a replaceable part, or do I have to buy a whole new radiator? I found a thread (http://bimmerfest.com/forums/showthr...ghlight=nipple) that suggested the following part, but I found it on OEM-BMW-parts.com and it stated that the part is for Mercedes. It looks like the right part, but I don't want to completely break my part unless I am sure it will work as a replacement.

Anybody have any insight on this problem? Is it a common problem?

Thanks,
Aaron
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  #2  
Old 08-10-2006, 03:44 PM
Jon@TheMshop Jon@TheMshop is offline
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Mein Auto: '98 M3 Turbo '07 335i
Quote:
Originally Posted by adisman
I have a 1997 528i. I see a slight leak coming from the elbow on the driver's side of the radiator. This is the elbow that is connected to a hose and runs back to the coolant reservoir.

Does anybody know if that is a replaceable part, or do I have to buy a whole new radiator? I found a thread (http://bimmerfest.com/forums/showthr...ghlight=nipple) that suggested the following part, but I found it on OEM-BMW-parts.com and it stated that the part is for Mercedes. It looks like the right part, but I don't want to completely break my part unless I am sure it will work as a replacement.

Anybody have any insight on this problem? Is it a common problem?

Thanks,
Aaron
Is your radiator still original from the factory?
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  #3  
Old 08-10-2006, 03:52 PM
adisman adisman is offline
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Mein Auto: 1997 528i
Quote:
Originally Posted by Jon@TheMshop
Is your radiator still original from the factory?
yeah, the radiator is original from factory (with plastic sides). here is the link for the part I found, it looks right, but I just am not sure since when I called the dealer he said you have to buy a new radiator.

http://catalog.eautopartscatalog.com...OKAM81VB0U33GY

Also, here is a picture of the part I am talking about. This picture isn't my car, but it looks like someone else had the same problem. Is this design of the radiator overflow hose common to all BMWs??

http://img161.imageshack.us/img161/7...ollapse3dg.jpg
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  #4  
Old 08-10-2006, 04:12 PM
Jon@TheMshop Jon@TheMshop is offline
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Quote:
Originally Posted by adisman
yeah, the radiator is original from factory (with plastic sides). here is the link for the part I found, it looks right, but I just am not sure since when I called the dealer he said you have to buy a new radiator.

http://catalog.eautopartscatalog.com...OKAM81VB0U33GY

Also, here is a picture of the part I am talking about. This picture isn't my car, but it looks like someone else had the same problem. Is this design of the radiator overflow hose common to all BMWs??

http://img161.imageshack.us/img161/7...ollapse3dg.jpg
If you still have the original radiator from 1997 then I highly recommend replacing the entire radiator. That small piece though is replaceable and I have done it before.
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  #5  
Old 08-10-2006, 04:43 PM
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M.Wong M.Wong is offline
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Quote:
Originally Posted by adisman
...that suggested the following part, but I found it on OEM-BMW-parts.com and it stated that the part is for Mercedes. It looks like the right part, but I don't want to completely break my part unless I am sure it will work as a replacement.
I replied to your other post:
http://bimmerfest.com/forums/showpos...6&postcount=11
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M.Wong
E38 2000 740iL Orient Blue
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Passed on to new families:
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  #6  
Old 08-11-2006, 02:25 PM
adisman adisman is offline
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Mein Auto: 1997 528i
Talking thanks guys!

I went to the pelicanparts.com website and found that part you were referring to. Hopefully I just had a damaged o-ring or something. Was the part easy to remove? Just a matter of "popping" it out? Do you have any suggestions on methods to replacing that part?
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