Air Conditioning

[grahamchet]

Dear Forum,
My air conditioning on my A4, B7 2007, diesel automatic failed a while ago. I have a free version of ACDS Lite and it came up with the following fault:

1 fault found
01232 - A/C Compressor Regulator Valve (N280)
30-10 - Open or Short to Plus - Intermittent

I bought a replacement regulator valve and got my local garage to fit it. He had actually recharged the system for me before so charged nothing to fit the new valve. I ran the VCDS again and cleared all the fault codes. I now get the following:

VCDS-Lite Version: Release 1.2
Wednesday, 12 July 2017, 14:16:01.
Chassis Type: 8E - Audi A4 B6
Scan: 01,02,03,08,09,0F,11,15,16,17,18,36,37,45,46,55,56 ,57,65,67,69,75,76,77
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Address 08: Auto HVAC Labels: 8E0-820-043.LBL
Controller: 8E0 820 043 BL
Component: A4 Klimaautomat 3233
Coding: 00000
Shop #: WSC 00000
VCID: 6CAB47B30F93
No fault code found.

I appreciate VCDS Lite is for cars up to B6 and mine is a B7. But to buy the full VAG COM would cost about $250 which is a bit steep. Can anybody help?

[rowdy-999]

I believe the system would need to be depressurized before that valve is changed.