Thermostat On An E34 - BMW Forum - BimmerWerkz.com
5-Series (E12,E28, E34, E39, E60) Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)

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#1 (permalink) Old 05-02-2005, 03:57 PM
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hi can anyone tell me where the thermostat is on an E34, also, are there any bleed valves to release an air lock from the water system

thanks
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#2 (permalink) Old 05-02-2005, 03:59 PM
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For which motor?

2002 BMW 530i
1997 Ford Mustang GT
1995 Honda VFR 750 (For Sale)
1964.5 Ford Mustang
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#3 (permalink) Old 05-02-2005, 04:04 PM
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Quote:
Originally posted by The Deuce@May 2 2005, 09:59 PM
For which motor?
[snapback]340193[/snapback]

E34 520i j reg
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#4 (permalink) Old 05-02-2005, 04:05 PM
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follow the upper return hose to the housing/branch thing. It's inside of there. There is a bleed screw on it as well, and one next to the expansion (where you put coolant) tank on the rad.

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#5 (permalink) Old 05-02-2005, 04:11 PM
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Quote:
Originally posted by Torque@May 2 2005, 10:05 PM
follow the upper return hose to the housing/branch thing. It's inside of there. There is a bleed screw on it as well, and one next to the expansion (where you put coolant) tank on the rad.
[snapback]340196[/snapback]

the plastic screw on top of the radiator was constantley putting out steam when i opened it earlier and wasnt really slowing down neither, is my thermostat and bleed screw on the join from where the top pipe off the rad goes and the bottom pipe off the rad goes to, theres some sort of electrical connection there which is held on by a maybe m6 allan bolt, i undone it and it looked like it had some oil on it also there looks like a 10mm bolt with a crimped wire attached to it
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#6 (permalink) Old 05-02-2005, 04:25 PM
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Well, now you got me confused. Can you tell me which car you have, and I'll help you more ?

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#7 (permalink) Old 05-02-2005, 10:11 PM
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if you don't know the name of the engine a year is a helpful hint. or does your valve cover have plastic or is it all metal?
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#8 (permalink) Old 05-02-2005, 10:12 PM
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Quote:
Originally posted by bryan1970@May 2 2005, 11:11 PM
if you don't know the name of the engine a year is a helpful hint. or does your valve cover have plastic or is it all metal?
[snapback]340297[/snapback]
Well, regardless of year we need to know the model...

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#9 (permalink) Old 05-03-2005, 02:27 AM
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Quote:
Originally posted by Torque+May 3 2005, 04:12 AM--><div class='quotetop'>QUOTE(Torque @ May 3 2005, 04:12 AM)</div><div class='quotemain'><!--QuoteBegin-bryan1970@May 2 2005, 11:11 PM
if you don't know the name of the engine a year is a helpful hint. or does your valve cover have plastic or is it all metal?
[snapback]340297[/snapback]
Well, regardless of year we need to know the model...
[snapback]340298[/snapback]
[/b][/quote]

its a 520i E34 J reg

its a plastic screw on top of the radiator next to the filling bottle,

there's a cast join where the bottom pipe of the rad goes and the pipe from the top of the rad goes to, is this where the bleed screw is and the thermostat is, uve then got a pipe directly below the top one which is of smaller diameter and it looks like this goes towards the back somewhere, not sure what lump it is, m10 m20
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#10 (permalink) Old 05-03-2005, 03:29 PM
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Well, you car could be either M20 or M50, but here goes for both

M20:
1 - bleed screw
2 - thermostat housing and bleed screw on top of it.... you'll see it as it only screws in about half way... it sticks out.

I'll tell you where it is on the M50 (very likely the same), but I'll go check on my dad's 91 in a minute.

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#11 (permalink) Old 05-03-2005, 03:46 PM
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On the M50, the bleed screw on the radiator is in the same exact place. The one on the thermostat housing seems to be behind the place where the hoses come together, and I am assuming you have to pull that back to get to it...

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#12 (permalink) Old 05-03-2005, 04:02 PM
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Quote:
Originally posted by Torque@May 3 2005, 09:46 PM
On the M50, the bleed screw on the radiator is in the same exact place. The one on the thermostat housing seems to be behind the place where the hoses come together, and I am assuming you have to pull that back to get to it...
[snapback]340549[/snapback]
my engine layout looks quite different to that, can u tell me how to post photo's and il photo my engine tommorow, or can i have your email address please Torque
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#13 (permalink) Old 05-03-2005, 04:12 PM
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Then it must be this:

http://www.bmwworld.com/images/engine/m50_300.jpg

BTW, to post pics, hit ADD REPLY when posting and then browse for attachments.

my email addy is straightsix@gmail.com in case u wanna send,

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#14 (permalink) Old 05-04-2005, 03:44 PM
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Quote:
Originally posted by Torque@May 3 2005, 10:12 PM
Then it must be this:

http://www.bmwworld.com/images/engine/m50_300.jpg

BTW, to post pics, hit ADD REPLY when posting and then browse for attachments.

my email addy is straightsix@gmail.com in case u wanna send,
[snapback]340554[/snapback]
looks like its an m50 lump, ive sent you some pics, hope they come out ok
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#15 (permalink) Old 05-04-2005, 07:07 PM
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emailed u

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