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D3 - Interior Electrics Airbags, Sensors, climate modules, instrument clusters, switches etc

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  #1  
Old 28th August 2014, 11:35 AM
Sir WIll Sir WIll is offline
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Agreed,

I need to run through the settings for HVAC on VAGCOM, its just finding all the right block data so I can confirm the range of movement is correct.

Also my laptop battery decided it would not last longer than 3 minutes on a full charge so had to order another one.

I am not sure if I need to run through output tests for the flaps to move full range and reset or if I need to go through basic settings and reset one of the blocks?
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  #2  
Old 5th October 2014, 04:15 PM
Sir WIll Sir WIll is offline
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Well all the motors seem to be move on the HVAC system, I have spent far to long taking glove boxes off and removing knee rolls today!

Now the top radiator hose is warm, coolant levels are fine but I have another question.

By the firewall to the left of the cabin filter next to the brake resovior; there is two coolant pipes.

They have a bleed screw on top of each pipe, I have bled both and there is no air.

Question is one is cold and one is warm, is this correct?

I am trying to work out if these come from the heater core and one cold pipe indicates a blocked heater matrix?
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  #3  
Old 4th January 2015, 01:26 PM
daviesbike daviesbike is offline
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Snap mine is now behaving in exactly the same way and I have no idea why .. It takes ages to warm up
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  #4  
Old 4th January 2015, 02:50 PM
Sir WIll Sir WIll is offline
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I went through everything in the end.

Checked all the motors, flaps and electrics and all were good. Replaced the water pump and valves for new also with no success (The ones removed were good in the end).

I topped up the coolant and went through VAGCOM and reset everything then proceeded with going through all the basic settings test to check it all works which it did.

All still with no luck.

I came to the conclusion in the end that the Heater matrix (x2) were blocked and needed to be cleaned or flushed.

At that time I fell out of love with the car after pouring nearly £2000 into it over 6 months and sold it.

I went on to buy the current D2 S8.

The new owner got back to me and he said unfortunately the problem was the heater matrixes but they needed replacement not flushing.
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  #5  
Old 11th January 2015, 07:00 PM
daviesbike daviesbike is offline
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I think mine may also be the matrix in need of a back flush perhaps. . I don't like the sound of changing it completely .. its rather nippy though..
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  #6  
Old 14th January 2015, 08:17 PM
daviesbike daviesbike is offline
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Fixed . Working perfectly now it's great really hot now ..

Back flushed the matrix and low and behold perfect heat now no waiting 2 hours for it to trickle through on the cold early morning starts
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  #7  
Old 14th January 2015, 09:04 PM
Sir WIll Sir WIll is offline
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Great result and a lot cheaper than replacing both the heater matrix's.
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