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Old 11-14-2013, 12:27 PM   #1
3rd Gear Member
emas's Avatar
Join Date: Sep 2006
Location: T.O.
Posts: 36
E38 740i Heater BLows Heat Always Top & Bottom

I have a 2000 740i that blows heat on bottom and top always. On driver side only. This has recently happened and has not fixed it self as I was hoping. No matter what setting I choose, it always blows heat top and bottom, the front vents are not as hot. The only way I can control the huge amount of heat, is to select the front vents only, then I get a colder air than the desired setting. So there is a imbalance. The passenger side works fine. I have closed the rear vents. Any idea of what the heck is going on? Winter is here so I need to fix this.
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Old 11-17-2013, 12:31 PM   #2
6th Gear Member
Join Date: Jul 2002
Location: Victoria, British Columbia
Posts: 3,377
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Sounds like its your heater valve, they tend to get stuck, resulting in what your experiencing right now...

Number 1 on the film, Water valve with additional water pump 64 11 8 374 994

Its a ballpark on the part number as I didn't have your VIN
1990 735iL under construction.....
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