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E34 (1989 - 1995)

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  #1  
Old 05-02-2013, 06:23 AM
rdc rdc is offline
Russell
Location: Lexington, KY
 
Join Date: May 2006
Posts: 878
Mein Auto: 1995 525iA
# hours to replace heater core?

Looks like mine is starting to leak. Guess I will have my indy do it. Coolant/water is dripping under the car on right drain and the coolant light came on this morning. Noticed it a few days ago.


I will turn heat all the way to off. I don't think that stops flow to the heater core though. Anyone know?


May do the bypass trick. Guess I will need to search for it.
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1995 525i auto, 1/95 build, EAT chip, abt 234K miles, , HID, Lumbar, Oxford Green/Parchment, rebuilt trany @ 208K
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  #2  
Old 05-02-2013, 07:07 AM
BMR_LVR's Avatar
BMR_LVR BMR_LVR is offline
Humble E34 lover
Location: Asheboro, NC
 
Join Date: Dec 2008
Posts: 5,264
Mein Auto: 1992 525i
If your heater valve is working correctly, then turning the temp knobs to full cold will stop the flow of current through the heater core and thus stop your leak at least for the summer when you don't need heat.

I recently had mine done by my indy mech. It was $635 including a new cabin filter. It was worth EVERY penny. I saw the car when it was disassembled and man, what a nightmare. Some here will encourage you to do it. It can be done, but it is a major job if you choose to do it.

Good luck.
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  #3  
Old 05-02-2013, 07:23 AM
rdc rdc is offline
Russell
Location: Lexington, KY
 
Join Date: May 2006
Posts: 878
Mein Auto: 1995 525iA
Quote:
Originally Posted by BMR_LVR View Post
If your heater valve is working correctly, then turning the temp knobs to full cold will stop the flow of current through the heater core and thus stop your leak at least for the summer when you don't need heat.

I recently had mine done by my indy mech. It was $635 including a new cabin filter. It was worth EVERY penny. I saw the car when it was disassembled and man, what a nightmare. Some here will encourage you to do it. It can be done, but it is a major job if you choose to do it.

Good luck.
You are the man! I like your approach.
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1995 525i auto, 1/95 build, EAT chip, abt 234K miles, , HID, Lumbar, Oxford Green/Parchment, rebuilt trany @ 208K
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  #4  
Old 05-02-2013, 05:49 PM
txrealtor txrealtor is offline
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Location: Huntsville, AL
 
Join Date: Mar 2011
Posts: 188
Mein Auto: '95 525it '95 525i/M
# hours to replace heater core?

Quote:
Originally Posted by BMR_LVR View Post
If your heater valve is working correctly, then turning the temp knobs to full cold will stop the flow of current through the heater core and thus stop your leak at least for the summer when you don't need heat.

I recently had mine done by my indy mech. It was $635 including a new cabin filter. It was worth EVERY penny. I saw the car when it was disassembled and man, what a nightmare. Some here will encourage you to do it. It can be done, but it is a major job if you choose to do it.

Good luck.
+1000000000000000! Have it done!! While it can be a DIY, if you can afford to get it done, then do it!!!


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1995 525i 123,000 miles
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  #5  
Old 05-03-2013, 02:04 AM
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_Ethrty-Andy_ _Ethrty-Andy_ is offline
E34 Converted E30 Fanatic
Location: Humble New Zealand
 
Join Date: Nov 2008
Posts: 6,140
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Mein Auto: E34 Touring AC Schnitzer
bit of a headache, but not too bad if you have a weekend spare. a good 4 or 5 hours tho
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  #6  
Old 05-05-2013, 07:05 PM
djchuck djchuck is offline
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Location: Beaverton, Oregon
 
Join Date: May 2013
Posts: 44
Mein Auto: 1995 525i Sedan
# hours to replace heater core?

I saw a tutorial on it. They said that it depends on "how" you do it... If you take apart the entire dash, gives you more room but adds hours. You can just take out the console saves time but tightens up the work space and makes it a bit more of a headache.

+1 to having someone else do it.


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  #7  
Old 05-07-2013, 07:02 AM
rdc rdc is offline
Russell
Location: Lexington, KY
 
Join Date: May 2006
Posts: 878
Mein Auto: 1995 525iA
Might remove the passenger side carpet covered panel to see if I can seen anything regarding the heater core. You know, like you are changing the cabin filter which I also need to do. Doubt if I can as there is a cover over the core. Just sort of thinking out loud. My passenger side under car drain is where antifreeze is coming out. Makes me think/hope it is just an O ring on that side. I may order all the O-rings and dive in.

It does not seem to be too much trouble to get the lower dash apart. I have had the console, driver's side under panels, glove box OBC and radio out before. However, never had the heater controls (slide type) out. Not sure if there are issues there??

Even if i decide not to fix it myself. I can save a bunch of labor if i remove and replace all the interior parts I know i can handle. My shop chanrges by the hours spent on a job, not a flat rate book. These guys are good.

Thoughts?
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1995 525i auto, 1/95 build, EAT chip, abt 234K miles, , HID, Lumbar, Oxford Green/Parchment, rebuilt trany @ 208K
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  #8  
Old 05-07-2013, 03:31 PM
MySatinDoll MySatinDoll is offline
New to S5X Tinkering
Location: Next door bring tools and beer.
 
Join Date: Jan 2011
Posts: 1,531
Mein Auto: 1995 e34 S52b32/5
I did it. The biggest PITA is dismantling everything to get to it.

I practiced in a yard before i attempted it.

I can pretty much do it by memory and a beer.

Yes if you have the cash to spend on a shop I'd do it too.
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