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D3 - Interior Electrics Airbags, Sensors, climate modules, instrument clusters, switches etc |
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Thread Tools | Display Modes |
#1
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Heater Blower
Can anyone shed some light on this.
My Blower control has a mind of its own, first thing in the morning it takes about 5-10mins for the blower to activate, once on i have no control over the speed of the blower, even if i turn the speed down on the mmi screen it dosent change. Anyone have any ideas? could this be a faulty resistor somewhere Thanks |
#2
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Tricky one and i'll be honest do you have VAGCOM.
On most cars i've seen it's normally down to a faulty climate control unit. The lights change, but it doesn't send the correct signal. Now the problem on here is the HVAC panel sits on the MOST network. And seems to be adjusting the MMI screen, therefore it is sending a signal..... in theory. If it was me I would plug in VAGCOM and see if it shows the change via measuring blocks. This will tell you if it is truly sending the signal. If it is not, then replace HVAC. I'm suspecting the heater motor though. I assume temperature is fine, just literally blower speed? |
#3
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Thanks for the reply.
Yes i do have vagcom, but havent really used it alot so how would i go about seeing if these measuring blocks change? i take it i would need to entry module 08 Auto HVAC and then what? Quote (I'm suspecting the heater motor though. I assume temperature is fine, just literally blower speed?) Yes the Temperature is fine, just the fans are the problem Thanks |
#4
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Quote:
However I have produced one which will give you all the labels for the various measuring blocks Drop me a PM if you want it and I'll give you instructions where to save it to and how to use it. Without it you won't be able to diagnose or check anything in the HVAC module, there's just too much info in there which means nothing without a label file Note to self, I must send it to Ross Tech for inclusion in a future release
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2003 D3 A8 4.2 Atlas Grey - Factory: Adaptive lights with coming home function, 19" wheels, Solar Sunroof, Bose, Nav, TV, Paddle shift sports wheel, sports suspension, sports seats, rear seats with electric lumbar adjustment, heated seats and climate all round, ski hatch, int light pack, auto dip/fold mirrors, voice command, cordless phone, wooden gear knob, towbar, power boot lid After: LPG, AMI with HDD Pending: DVB-T Tuner & fixing niggles |
#5
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Many Thanks for that i will PM you
Cheers |
#6
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Got your message and have PM'd you. We're only a stones throw from each other so it may be worth meeting up
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2003 D3 A8 4.2 Atlas Grey - Factory: Adaptive lights with coming home function, 19" wheels, Solar Sunroof, Bose, Nav, TV, Paddle shift sports wheel, sports suspension, sports seats, rear seats with electric lumbar adjustment, heated seats and climate all round, ski hatch, int light pack, auto dip/fold mirrors, voice command, cordless phone, wooden gear knob, towbar, power boot lid After: LPG, AMI with HDD Pending: DVB-T Tuner & fixing niggles |
#7
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Glad you are getting sorted, agree you do need HVAC labels, I forgot they wern't on the D3.
If you meet up might be easier to swap HVAC panels and try that. It's very easy to do. Remove the ashtray and undo bolts IIRC... It's been a while/ |
#8
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Just a quick update on this......
Also like to thank bry for taking time to help in this problem, hope you and your family have a good Xmas OK after some trawling on the internet, and reading a few similar problems regarding the fans having a mind of there own, i decided to change the blower module which is located next to the fans themself. End result is all working perfect Once again bry many thanks Tony |
#9
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Tony,
It was a pleasure though frustrating we couldn't fix it and ultimately required the blower module replacing, not cheap as I've just found out. Looks like I now have a similar problem (must be catching), though I think mine is down to the fan so I'll be replacing that over the hols - it just arrived today. Something else to add to the small claims claim , that's going to be an interesting day ! Have a great Christmas and New Year too.
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2003 D3 A8 4.2 Atlas Grey - Factory: Adaptive lights with coming home function, 19" wheels, Solar Sunroof, Bose, Nav, TV, Paddle shift sports wheel, sports suspension, sports seats, rear seats with electric lumbar adjustment, heated seats and climate all round, ski hatch, int light pack, auto dip/fold mirrors, voice command, cordless phone, wooden gear knob, towbar, power boot lid After: LPG, AMI with HDD Pending: DVB-T Tuner & fixing niggles |
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