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#1
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Heat only when RPMs are up
As if she doesn’t have enough issues, now I have a new one. Any ideas where I should start? The coolant is full, maybe air in the system? I did change the Water Pump last year, but had heat after that no issues? Sent from my iPhone using Tapatalk |
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#2
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Quote:
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#3
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my guess as well. Could have failed slightly open? |
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Sometimes I don't get what I feel is adequate heat at highway speeds/RPM. It seems to be (more of?) an issue since the solar windshield was fitted and couple of years ago and when it's sunny out. Like the solar sensor needs to be recalibrated or a new curve programmed. Sometimes I have to turn the temperature up to 28C - I have four zone auto climate control - to get any heat. I feel like the hysteresis adjustment (which is electronically controlled with the climate control option) has to ne relied up on way too much in my X5.
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8/2011 X5 xDrive35d Sport, Black Sapphire Metallic, Black Nevada Leather, Fine Burr Walnut Trim 2/2001 M5, Jet Black, Exclusive Complete Black Walk Nappa Point Heritage Leather, Black Cubic Trim Last edited by josiahg52; 12-02-2019 at 07:22 PM. |
#5
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Heat only when RPMs are up
I don’t know if this is relevant, but I was just looking at live data on the scanner. First pic is when I’m stopped at a red light, second pic when I’m driving. Big difference, just have to figure out what’s causing the issue.
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#6
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The aux pump doesn't do much. I disabled mine on 35d because it was throwing error codes and whining loudly. I still have good heat.
Check your heater valves, one may be stuck halfway. Also what's your coolant temperature in the cold on a highway drive? They fail open and of you don't get 80Con a cold day highway 15 mins , you have a bad tstat |
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