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b78 grand exclusive dual climate not cooling properly
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Author Post
boater   
Mon Sep 06 2021, 12:52pm
Member No: #40712
Joined: May 27 2015
Location: glos
 It used to be really efficient but now although air is fairly cold the blower gradually fades after about 30/40 mins to almost no air at all even when 25 deg plus outside and set to 14 on both sides. Will blow stronger if set to low but will only go to max if set on manual and then air is not as cold. Dealer has looked 4 times but won't wait until it happens and then says it is ok @cos it is at first.
Under warranty so any ideas what I can look at or how to get help?
tomandjo2   
Mon Sep 06 2021, 02:50pm
Member No: #20851
Joined: Jul 17 2011
Location: Cambridge
 Could the heat exchanger be freezing up (not allowing air to pass through because is clogged with frost)?
1 User said Thank You to tomandjo2 for this Post :
 boater (07 Sep 2021 : 04:14)
boater   
Tue Sep 07 2021, 04:16am
Member No: #40712
Joined: May 27 2015
Location: glos
 That thought had crossed my mind -any idea how I can check it?
tomandjo2   
Tue Sep 07 2021, 03:45pm
Member No: #20851
Joined: Jul 17 2011
Location: Cambridge
 Don't know I had a similar issue a few weeks back, climate set to 21 vents ice cold but no air flow, turned off breifly then back on and ok for a short time.

I suppose let it happen again then park up at home and leave for a whle and see how much water has dripped out of the aircon under the car.
1 User said Thank You to tomandjo2 for this Post :
 boater (08 Sep 2021 : 07:34)
boater   
Wed Sep 08 2021, 07:35am
Member No: #40712
Joined: May 27 2015
Location: glos
 great, thanks I, ll check that and go from there
 

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