Heater Diagrams showing air flow and flaps? - Bimmerfest - BMW Forums



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E60 / E61 (2004 - 2010)
BMW 5-Series E60 Sedan was first seen in the Unites States in the fall of 2003 with a 2004 Model Year designation. The E61 wagon followed shortly there after. The E60/E61 5 series is now available as a 528i, 528xi, 535i, 535xi, 550i and a 535xi sports wagon! -- View the E60 Wiki

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  #1  
Old 11-15-2019, 03:40 PM
plus1111 plus1111 is offline
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Heater Diagrams showing air flow and flaps?

I am fighting with weird heat issues and had weird A/C issues last summer. All the basics check out. I have decent air flow, the auto functions move air up and down as usual but the air is cold or lukewarm.

I have replaced the heater water valve and flushed the cores to confirm good coolant flow in both sides. After a drive last night the drivers side blew warm but the passenger side was still cold. When I felt the heater hoses all three burned my hand.

The radiator hoses were hot too. I suspect maybe something in the heater assembly is wonky but it would help a lot to know what goes on in there.

HELP!

And THANKS!
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Hobby mechanic doing my own work for 50 years or so.
We have a 2006 530xi Touring and a 2008 535xi sedan.
I can't really remember the last time I took a car to a repair service.
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  #2  
Old 11-15-2019, 04:48 PM
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Ridin'Dirty Ridin'Dirty is online now
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I can't find specifically what you are looking for but I can get you to the section on "newTIS.info" when there are several articles that may help:
https://www.newtis.info/tisv2/a/en/e...ater-controls/
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Old 11-15-2019, 08:00 PM
plus1111 plus1111 is offline
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Thanks. I don't easily find things in newTis. I appreciate it.
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Hobby mechanic doing my own work for 50 years or so.
We have a 2006 530xi Touring and a 2008 535xi sedan.
I can't really remember the last time I took a car to a repair service.
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Old 11-15-2019, 11:03 PM
MysticRob MysticRob is offline
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Are your iDrive hvac settings set to cold?
My iDrive settings greatly affect how hot or cold the air blows, irrespective of how I adjust the temp dials for each side.
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Old 11-16-2019, 10:54 AM
plus1111 plus1111 is offline
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Thanks. iDrive and I have had many chats. All heat settings are at max. The 2008 car has temp settings for the automatic cycle and manual. This 2006 only has a temp setting for the manual side. I shall continue to investigate.
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Hobby mechanic doing my own work for 50 years or so.
We have a 2006 530xi Touring and a 2008 535xi sedan.
I can't really remember the last time I took a car to a repair service.
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Old 11-17-2019, 01:56 PM
plus1111 plus1111 is offline
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Mein Auto: 2008 535xi
I started cold today. I set Calry to monitor as many temperatures as I could fit. Then I attached an electronic temp probe to the top radiator hose and another to a heater inlet hose.
The radiator hose got hot quickly and the heater hose stayed several degrees cooler but both began rising almost as soon as I started driving.

I conclude thet the thermostat is stuck wide open. I guess I'll replace it.

Thanks for all the great ideas, folks!
__________________
Hobby mechanic doing my own work for 50 years or so.
We have a 2006 530xi Touring and a 2008 535xi sedan.
I can't really remember the last time I took a car to a repair service.
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