No AC

[M-A8]

You may find this useful Scott

PDF download link

http://www.google.co.uk/url?sa=t&rct...68911936,d.d2k

[ScottD3]

oooo that will do.

Thanks.

[ScottD3]

Thanks for the document M-A8.
Going by that my system is gassed up and working fine from that side of it.
The pump spins, the fan kicks in when I do a output test but not when the system is running and there's the correct pressure or at least its in tolerances.

I'm out of ideas. lol

[PsYcHe]

Is the compressor clutch working?

[ScottD3]

I can tell by looking at it but going by VCDS and using the document M-A8 posted it is.

The message block 1 on VCDs all seems to be in the required range to suggest its all working.

EDIT:
Due to bad memory I can't remember if I paid any attention to group 2 with in VCDS. Rereading the document it seems like a good one to read.

[ScottD3]

My custom label file works.....to a point.



Going by group 002 the compressor is switched off.

3 = Compressor OFF by Pressure Switch : Basic settings not performed
12 = Compressor off by Requested from ECU

Not sure what 12 is apart, apart from the above explanation.
At least number 3 might be something I can do.

I went to the basic setting and started.
Learning started.


Learning Ended.


Made no difference.

[ScottD3]

I got a number wrong.
I missed off number two in the custom label file.

2 is pressure switch.
3.0 is "Display 3 Compressor off (pressure in refrigerant circuit too low)"

But then group 1, display 4 says this "Pressure in refrigerant circuit in bar Calculated by Climatronic Control Module J255 via duty cycle of signal from High Pressure Sensor G65 display = less than 2.6 bar or greater than 29 bar (even briefly) Pressure in refrigerant circuit too low (system empty) or too high High Pressure Sensor G65 malfunctioning display = 2.6 bar to 29 bar Pressure in refrigerant circuit in permissible range"

So its not too low going by the pressure sensor switch.

It says this
"If a compressor switch-off condition exists for the compressor (ı display group 002) the A/C Compressor Regulator Valve N280 cannot be activated, nor during output Diagnostic Test Mode (DTM) ( Output Diagnostic Test Mode)."

I'm not sure what it means by this in the document about the display zones.
Zone 2, Last compressor shutoff criterion Explanatory notes
Zone 3, Last but one compressor shutoff criterion Explanatory notes
Zone 4, Third last compressor shutoff criterion Explanatory notes

I kind of want to side with low pressure but its saying its not low pressure.
So what is it or is it getting it from somewhere else?

[ScottD3]

The pump is gone.

Anyone ever fitted a pump to a D3?

[PsYcHe]

Never did it myself, but you may well need an evaporator/dryer too if the system has been compromised. My PF D3 went through 3 under warranty until they replaced that at the same time.

[M-A8]

This...??
(see attached for '06 3.0 TDi)