Its a little cold in the D3

[Mechcanico Lee]

What’s the heat like on different positions ....screen / feet and so on , if the heats good at the vents this means the matrixes are getting water so your fault sounds more like blend doors not opening / closing off

[ulfilias]

Hi There,

Running output tests in VCDS, everything seems to move and do something. The heat isn't amazingly consistent and tends to take a while to come through. One of the vents. The middle driver one always seems to blow cold.
From the pipes i'm guessing that there are two matrix's and i'm thinking one is reasonable and the other isn't!

Irritatingly work is getting in the way with having another proper play, but i'm tempted to try flushing the matrix's when i get a chance....It's either that or the pump is weak (though i've exploded the old set and it doesn't seem the biggest water mover anyway). I'd think it odd that both valve sets/solenoids would have the same issue (as i'd get heat on some vents but not others, though it was on the pathetic and taking ages side)

Lee

[snapdragon]

Originally Posted by ulfilias

One of the vents. The middle driver one always seems to blow cold.

Oh dear - have you seen the setting in SETUP where you can change the Centre vent to be cooler or warmer than the set temp? Just checking the dial is centred? Does it get hotter if you turn this up?

[ulfilias]

Originally Posted by snapdragon

Oh dear - have you seen the setting in SETUP where you can change the Centre vent to be cooler or warmer than the set temp? Just checking the dial is centred? Does it get hotter if you turn this up?

Oh....if only the fix was that simple. Still always worth checking the settings. I tried with it turned to colder this morning. That didn't seem to make a difference either, but was worth a try!

[snapdragon]

OK so if you turn to HI and it comes out HOT at the other vents, the valves and pump must be OK, the heather matrix must be OK so must be flaps. You have tried the output tests, there is a flap position learning function somewhere in the VCDS, have you tried that? Could do with seeing a diagram on SSP or photos on google images of all the pipes, flaps and ducts.