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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 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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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
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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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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
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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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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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  #12  
Old 01-17-2016, 05:43 AM
Sroor9001 Sroor9001 is offline
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Quote:
Originally Posted by A Stone View Post
How did you pull out the pipe?
Did you do it ??
I think I've read somewhere you can get there without removing manifold only the oil filter housing I mean the whole unit so then you can access that mine is fishy but I have to fill just little water about 100 ml or less every week so once it showing more coolant loss I'll think about changing it
Cause just seeing DIY it's a headache and I need to do it within a week cause I don't have patient and I have to take my brother spare car so I can do that Job after extensive reading about this DIY
I know how to remove throttle body and filter also alternator but we don't need to remove also power steering pump but we don't need to remove
But let me read and see the diyers advices it's really horrible
And I'll not let a mechanic do it for me as they are repairing one thing and break few things without informing you that's why Iam trying to be diyer as I changed most parts of my car
But this is the hardest as I think
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  #13  
Old 01-17-2016, 10:09 PM
syphilouis syphilouis is offline
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I replaced my heater inlet pipe on my 02 530i a few months ago, it was a pain in the ass as I had to remove the intake manifold and replace the intake manifold gaskets since it was off. It took me about 4-5 hours by myself with basic hand tools. The worst part is the end of the pipe that goes into the motor can break off upon removal and getting the broken piece out can be tricky as you don't want to use anything that can scrape or score the hole.
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  #14  
Old 01-18-2016, 04:28 AM
Sroor9001 Sroor9001 is offline
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Quote:
Originally Posted by syphilouis View Post
I replaced my heater inlet pipe on my 02 530i a few months ago, it was a pain in the ass as I had to remove the intake manifold and replace the intake manifold gaskets since it was off. It took me about 4-5 hours by myself with basic hand tools. The worst part is the end of the pipe that goes into the motor can break off upon removal and getting the broken piece out can be tricky as you don't want to use anything that can scrape or score the hole.
By the way can you replace plastic heater inlet pipe with previous model 97-98 model
My car say 525 model 2001 can I swap with metal pipe or it'll not fit different shape ??
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  #15  
Old 01-18-2016, 07:01 AM
Sroor9001 Sroor9001 is offline
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By the way from DIY I see that no need to remove the oil filter housing , throttle body , air filter , fuel injector rail
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  #16  
Old 01-18-2016, 11:12 AM
syphilouis syphilouis is offline
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Quote:
Originally Posted by Sroor9001 View Post
By the way can you replace plastic heater inlet pipe with previous model 97-98 model
My car say 525 model 2001 can I swap with metal pipe or it'll not fit different shape ??
I'm not sure to be honest, but I believe when I was researching it I had the same discussion with someone and we decided it wouldn't work and I can't remember why.
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  #17  
Old 01-18-2016, 01:35 PM
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mattmar1 mattmar1 is online now
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i wouldnt try to replace the plastic pipe with a homemade metal pipe unless you have machine capable knowledge to fabricate, it seals in with o rings and has to be made very accurately.
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99 528i 5sp sport, vanos rebuild,coolingoverhaul,stripped/repainted/polished/recoated OEM BBS style 5 wheels, new paint , all int/ext LED's clear corners, all vac leaks fixed, eonon 5166, ECS short shifter, LED ae's and fog lights (clear), all brakes, fixed trifecta, rear control arm camber repair, new throttle body, ccv delete, but it ended up as a huge vac leak, returned to new stock ccv, new injectors, cloned and replaced dme.
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  #18  
Old 01-18-2016, 06:51 PM
Sroor9001 Sroor9001 is offline
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Location: Bahrain
 
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Quote:
Originally Posted by syphilouis View Post
I'm not sure to be honest, but I believe when I was researching it I had the same discussion with someone and we decided it wouldn't work and I can't remember why.
Thanks friend
But By the way from DIY I see that no need to remove the oil filter housing , throttle body , air filter , fuel injector rail mine is m54 engine 525 model 2001
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