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6 Series
The BMW 6 Series builds on BMW's sporty heritage with aggressive lines and an incredible motor to back the design up. Available in coupe and convertible trims with a standard 4.8 liter engine producing 360 horsepower and 360 lb-ft of torque, the 6-series is a popular choice that exceeds expectations.

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  #1  
Old 04-08-2014, 01:19 PM
bismarck bismarck is offline
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Location: Cardiff, UK
 
Join Date: Aug 2012
Posts: 80
Mein Auto: BMW 645ci
Heater queries...

If you read my initial post on my coolant leak issue you might have noticed that one of the things which went at the time was the heating in the car.

In summary, the heating is still not working. Air comes through the vents but no matter how high i turn up the temperature it won't come out hot (even when I've got all the bars red on the climate in idrive).

My friend who I had fit the bimmerfix kit doesn't have the time (or indeed much bmw experience) to go any further with the heating issue. I'm also reluctant, given currently tight purse strings, to hand it over to his friends who have a bmw specialist garage as I'll have to pay them and even a heavily discounted rate will probably be too much.

They had a bit of a look for me and the two heaters are apparently working and generating heat so they're under the impression that it's probably the switch or flap (can't remember exactly what they called it, matrix maybe) which allows the heat to come through to the vents which is stuck on cold or stuck not letting the heat through. It could also be simply a faulty switch in the car, which I'll check or I guess it could also be a faulty heat sensor or something like that.

I'm thinking it's most likely what they reckon it is, the main trouble with that being that they're saying that they reckon either part or all of the dash would have to come out to access it.

1 - is it right that the dash would have to come out to check / replace this?

2 - are there any other things I could check which might be causing this problem?

Cheer all
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  #2  
Old 04-08-2014, 03:09 PM
HerbP HerbP is offline
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Location: Georgia
 
Join Date: Jul 2009
Posts: 2,456
Mein Auto: 2005 645Ci & 2007 750Li
Typical lack of heat comes from the heater valve, located on the D/S fender. The coils in the valve itself start to fail, which does not allow warm water to enter the car. If you remove the valve, you can test it with 12 volts, to see if the valve is opening. I think Nitrogen posted some pics a couple of years ago. It does not take long to remove the valve, & is a very easy DIY. The valve can be found on Ebay for around 125.00, or a the stealer for around 200.00.

Good Luck!
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  #3  
Old 04-09-2014, 01:12 AM
gebhardt gebhardt is offline
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Location: UK Liverpool
 
Join Date: Jan 2010
Posts: 19
Mein Auto: BMW 645 2005
Hi Bismarck as HerbP said in his reply it will be the heater valve.I had the same problem with mine you will find it mounted on the passenger side inner wing towards the bulk head.
I ordered one off e-bay at a cost of 35.00 including postage the one I fitted was off a E60 5 series. It's a really simple fix just 3 pipes takes about 30mins to do the job.
If you have a problem finding it pm me and I will send you some pictures
Cheers
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