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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E30 (1982 - 1993)

E30 (1982 - 1993)
God's Chariot. The E30 was produced primarily from 1982 through 1991. The cabriolet was the one exception which was produced through 1993.

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  #1  
Old 03-20-2005, 12:57 AM
hujev hujev is offline
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Location: alaska
 
Join Date: Mar 2005
Posts: 2
Mein Auto: 85 318i, us
coolant expansion / overflow tank, 85 318i

hi, just bought this last week, first bmw... so, the question is, did this car have an expansion tank originally? i get conflicting messaged if i try to search for the part on various parts suppliers. anyway, trhe radiator was apparently replaced a year or so ago, and now the only thing is an overflow tube, which just runs down to the bottom of the radiator...

one clue is that there was no overhead idiot light panel (thus no coolant low sensor display).

seems like there's plenly of room to add/replace the overflow tank, as well as making it a hell of a lot easier to see the coolant level... seems a little crazy that it wouldn't have had one originally, though!

any ideas? it'd be fairly easy, i suppose...
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  #2  
Old 03-21-2005, 01:43 PM
kenkorsak kenkorsak is offline
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Location: Barstow, Ca
 
Join Date: Mar 2005
Posts: 37
Mein Auto: 325i Convertible
you can check bavauto.com. all you do is put your year and model and it lets you search through all the parts for your specific car. you can even get a catalog sent to you. good luck
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  #3  
Old 03-21-2005, 01:53 PM
Lanc3r Lanc3r is offline
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Join Date: Sep 2004
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Mein Auto:
Quote:
Originally Posted by hujev
hi, just bought this last week, first bmw... so, the question is, did this car have an expansion tank originally? i get conflicting messaged if i try to search for the part on various parts suppliers. anyway, trhe radiator was apparently replaced a year or so ago, and now the only thing is an overflow tube, which just runs down to the bottom of the radiator...

one clue is that there was no overhead idiot light panel (thus no coolant low sensor display).

seems like there's plenly of room to add/replace the overflow tank, as well as making it a hell of a lot easier to see the coolant level... seems a little crazy that it wouldn't have had one originally, though!

any ideas? it'd be fairly easy, i suppose...

There is no overflow tank on the 84-85 318. As far as adding a tank, I woudnt do it, the engine is way easy to maintain, and the temp gauge is your buddy.
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  #4  
Old 09-10-2008, 06:16 AM
TC Baur TC Baur is offline
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Location: NSW, Aus
 
Join Date: Aug 2008
Posts: 4
Mein Auto: 318i
83 cab 318i expansion tank

Hi all, I just bought an 83 318i and noticed there was no coolant expansion tank, no idea why it wouldnt have been there. My manual has pictures of one in it so I have a bought a second hand one to put in. Should I bother or not???
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  #5  
Old 09-12-2008, 11:08 PM
Rekcedbob Rekcedbob is offline
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Location: Southern California
 
Join Date: Jun 2008
Posts: 65
Mein Auto: 1985 Bmw 318i
Does your car have fuel injection? If it has a carburator, put it in if you know how to plumb it.
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  #6  
Old 11-05-2014, 02:43 PM
jowen6214 jowen6214 is offline
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Location: california
 
Join Date: Nov 2014
Posts: 3
Mein Auto: 1997 bmw 318i
I just replaced the water pump, thermostat and housing assembly, and radiator in my 1997 318i. after running for about 30 minutes, it started leaking coolant from the expansion tank. what is causing this and how do I fix it? the car never overheated.
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  #7  
Old 11-05-2014, 11:23 PM
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BMWFatherFigure BMWFatherFigure is offline
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Location: Perth, Western Australia
 
Join Date: Aug 2012
Posts: 2,698
Mein Auto: E23;E30;E38;E32;E34 +
So many thread Hi-Jacks. IMO fit a tank to any car that does not have one. They are a good thing. If the tank pumps out coolant - the engine would pump coolant out of the radiator overflow anyway. The problem is not the tank and its plumbing - it is the engine (in some way).
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