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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

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 03-10-2011, 05:39 PM
raiders1 raiders1 is offline
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Unhappy Help! Heater inlet pipe replace

I have a 2001 bmw 530i and my mechanic told me that i have to replace my heater inlet pipe. How important is this piece? The part is $40 but the labor is $1000 because the manifold has to be taken off. Does anyone have experience with this?? The pipe is not black like it should be but brownish/yellowish which my mechanic says it can blow at any moment. I've never heard of this piece before. What will happen if that piece blows??
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  #2  
Old 03-10-2011, 06:28 PM
cn90 cn90 is offline
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Mein Auto: 1998 528i 5-sp 140K+
PN = ?

Picture?
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  #3  
Old 03-10-2011, 10:07 PM
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bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
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Mein Auto: 02 BMW 525i M54 auto 130K
I'm a little confused why three threads, all opened today?
- Heater return pipe leak, by raiders1
- Help! Heater inlet pipe replace, by raiders1
- new to bimmerfest , heater inlet pipe, by raiders1

Last edited by bluebee; 03-10-2011 at 10:11 PM.
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  #4  
Old 08-21-2011, 01:19 PM
pleiades pleiades is offline
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Mein Auto: '99 528i, M52TU w/stick
Still collecting bits and pieces for my "second-stage" cooling system overhaul. Did all of the usual bits last year, now I'm aiming to replace all the smaller heater-related hosing and was wondering, are the so-called "heater inlet pipes" on the M52TU and M54 made of steel? If yes, are they amenable to flushing & cleaning & re-use?

Part #8 (11531705210) in the realoem diagram

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  #5  
Old 08-21-2011, 05:50 PM
pleiades pleiades is offline
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Aw, come on ya'll.......
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  #6  
Old 08-21-2011, 06:43 PM
cn90 cn90 is offline
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Quote:
Originally Posted by pleiades View Post
Still collecting bits and pieces for my "second-stage" cooling system overhaul. Did all of the usual bits last year, now I'm aiming to replace all the smaller heater-related hosing and was wondering, are the so-called "heater inlet pipes" on the M52TU and M54 made of steel? If yes, are they amenable to flushing & cleaning & re-use?

Part #8 (11531705210) in the realoem diagram

Search forum for posts by "DHoang" and "Mark@EAC".
"DHoang" posted a nice picture of #8 pipe a while back.

The 1997 and 1998 I6: #8 is steel pipe.
The only leak you will ever get is bad O-ring.

1999-2003: #8 is plastic pipe. Go figure!
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  #7  
Old 08-21-2011, 07:57 PM
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bluebee bluebee is offline
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Quote:
Originally Posted by cn90 View Post
"DHoang" posted a nice picture of #8 pipe a while back.
This thread was referenced in the bestlinks I already referenced:
- Heater return pipe leak

The pictures were also re-used here:
- E39 528i Coolant. Need your help. Can't figure out.

I just added this to the bestlinks:
- Cooling system heater pipe heater core inlet return pipe leak (1) (2) (3)

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Last edited by bluebee; 08-21-2011 at 08:03 PM.
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  #8  
Old 08-21-2011, 08:55 PM
pleiades pleiades is offline
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Quote:
Originally Posted by cn90 View Post
1999-2003: #8 is plastic pipe. Go figure!
Nooooooooohhhh! Okay, must add that to the list, no reason to trust it after 12 years.
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  #9  
Old 08-22-2011, 03:21 AM
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Piston_broke Piston_broke is offline
What was that noise??
Location: Gold Coast, Australia
 
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Mein Auto: E28 M535i, E30 323i
For the M62 crowd popping in here. I recently replaced my heater exchange pipe (made of rubber) on my 535.
I think it ran me about $300, part included. Apparently it's a b*#ch to get to. My indy showed me exactly where it is/was and in hindsight I'm glad he did it and not me. It's tucked hard against the firewall.

On the V8's it's a specially made piece which has a larger diameter opening at one end with a clip attached with the other being smaller plus a tight bend thrown in.



BTW, my symtoms at the time were coolant leaking at a fast rate which was replaced only for it to happen again. The car managed to limp to the indy for diagnosis/repair without anything major happening, thank god.
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  #10  
Old 08-22-2011, 12:58 PM
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bluebee bluebee is offline
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Quote:
Originally Posted by Piston_broke View Post
my heater exchange pipe (made of rubber) on my 535.
Thanks for that elucidation.

Since this has not yet been reported (nor photographed) in the pictorial thread on all possible cooling system failures ...
- Pictorial look at typical E39 cooling system failure modes (1)

I took the liberty of adding it, just now!

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  #11  
Old 10-08-2013, 04:48 AM
A Stone A Stone is offline
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Location: London
 
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Quote:
Originally Posted by bluebee View Post
This thread was referenced in the bestlinks I already referenced:
- Heater return pipe leak

The pictures were also re-used here:
- E39 528i Coolant. Need your help. Can't figure out.

I just added this to the bestlinks:
- Cooling system heater pipe heater core inlet return pipe leak (1) (2) (3)

How did you pull out the pipe?
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