Air con problems 2005 Multivan

[Syncrotek]

With a/c on I think it would be showing a yellow light in the auto button, and a temperature in the display, that pic is showing only fan speed, can you set temp with either Auto or another button? If not you may have to start checking fuses.

SB Fuse holder top one under dash - SB14, # 14 on fuse holder B, 30A. SB15, # 15 on fuse holder B, 7.5A.
SB25, # 25 on fuse holder B, 5A. * (The Left card in your pic)

SC Fuse holder lower one under dash - SC18, fuse 18 on fuse holder C, 5A, (Climatronic rear)

SD Fuse holder eng compt, near LH headlight.- SD3, fuse 3 on fuse holder D, 15A, (A/C relay)

[Scouser]

No light anywhere and I cant remember ever seeing one?
Also I have taken the cover off the battery area near the headlight and I cant see a fuse box?
I will have a better look this weekend
Rhanks

[Sunny43.5]

I'll jump in here on this one the fuses in the engine bay are " under " the battery you have to remove the battery then unbolt the heavy metal plate that has about 6 bolts holding it down . I suppose it's not a group of fuses VW expect you to have trouble with as they are pretty heavy amperage ones in there .

[Scouser]

Thanks for that, at least I can cofirm I am not blind!!

[Syncrotek]

No, the other one in the eng compt, remove the plastic partition near the headlight and look down and you will see the fuse cover with two knobs or wing nut type screws, thats where the lower current one is, I doubt there would be trouble with the main fuses although on a T5 anything is possible. I cant find a picture just now, but if you cant see it google for a pic.

[Scouser]

I have checked the coupling the black damper is spinning
I have checked all the fuses mentiond above and still no luck
I will try the one in thd engine bay now

[Scouser]

Heres the fuse box in the engine i cant see which one you mean

[Sunny43.5]

At least you have fuse cards now days VW do not supply them some BS story about the van being under continuing development since 2010 and they do not have the fuse locations available but a quick trip to your local dealer [70 kays round trip ] they will help . But a good soul on here put up the locations a couple of years back . But I pity the poor sod who has not found the forum , and as above you need to be conversant in ancient Egyptian Hieroglyphic writing to decipher the meanings .

[Syncrotek]

The listing and pictures I have show the a/c fuse in that SD fuse-holder as #3, a 15A, but in your image the #3 slot is empty,
I can't make out if there are contacts in those empty slots, but if there are, perhaps just try a good fuse in either 3rd position,
top and bottom. if you go back to #15 post, you will see a snowflake icon on the fuse card on the right.

[Scouser]

I havent touched the fusebox in the engine bay and it used to work??

[Umai Naa!!]

If there's power and earth at the compressor clutch, it generally suggests that the compressor has died.

[Syncrotek]

Yes, but these have a constantly spinning non magnetic drive, the compressor is controlled by a regulating valve, fitted in the compressor,
a VW service/dealer or a VCDS operator can bypass the controls and test the valve and compressor, (BTW it operates with modulated low voltage, don't let anyone try battery voltage on the valve connections).

@Scouser - I just knew you would tell us that, I was nearly going to say someone is gaslighting you,
it really doesn't surprise knowing how electrical systems do not always comply with the book.
Just for fun try the fuse as I mentioned, before you put it back together.

If you think you could measure the voltage at the compressor control valve, without risk of damaging the
connections, then that would be the next step, if there is voltage there (I can't say the voltage without
checking) maybe around 4-8 volts ? that could lead to further steps.
WARNING - if you have any doubts about testing like accidental short circuits, damage to connectors, etc
then let a competent technician do it for you.

I forgot to ask earlier if you did a scan ?

Just wondering too, how minniemousey got on with theirs.

[Umai Naa!!]

But of course

[Scouser]

Will try the 15 fuse in the 3 spot on the weekend
Thanks for all the help

[minniemousey]

Yes, but these have a constantly spinning non magnetic drive, the compressor is controlled by a regulating valve, fitted in the compressor,
a VW service/dealer or a VCDS operator can bypass the controls and test the valve and compressor, (BTW it operates with modulated low voltage, don't let anyone try battery voltage on the valve connections).

@Scouser - I just knew you would tell us that, I was nearly going to say someone is gaslighting you,
it really doesn't surprise knowing how electrical systems do not always comply with the book.
Just for fun try the fuse as I mentioned, before you put it back together.

If you think you could measure the voltage at the compressor control valve, without risk of damaging the
connections, then that would be the next step, if there is voltage there (I can't say the voltage without
checking) maybe around 4-8 volts ? that could lead to further steps.
WARNING - if you have any doubts about testing like accidental short circuits, damage to connectors, etc
then let a competent technician do it for you.

I forgot to ask earlier if you did a scan ?

Just wondering too, how minniemousey got on with theirs.

Well, mechanic said it was the drive coupling for the compressor back in 2011 and we still haven't bothered getting it fixed. Maybe before this summer....