The golf finally let me down, we’ll sort of. 7 and a half years on and something has finally broken, it’s just somewhat typical it would be the aircon in the middle of a heat wave.
The typical first response to the aircon not working on any car is, “is there gas in the system?”
Well there was when I set out on my journey at 5pm but it’s getting on for nearly 8 years old and has never had a regas (if it ain’t broke don’t fix it) so this seemed a pretty fair question, I have the means to check the pressure so I plugged it in and not a PSI more or less than what should be expected… odd.
I supposed it did seem pretty odd that one minute it was working fine the next it was dead, rather than tapering off over the months to a mild muggy warm breeze out of the vents.
I don’t have a diagnostic tool for vw so that wasn’t an option.
I looked down at the compressor, with the engine running I could see the pulley idling fine. I stopped the car, turned the compressor by hand, it was lovely and smooth and I could feel the resistance as the pressure was building within the compressor nothing seemed out of place I was at this point assuming that it might be a relay or a fuse but the fuses where all fine and god only knows where the relays were hidden, but not in any of the fuse boxes.
I was begining to wonder if it was an expansion valve issue as I know these can need replacing sometimes on vw cars, it’s nice easily serviceable part, but then it occurred to me I wasn’t hearing the compressor even trying to click on and off, thinking ok clearly there is either something electrical or a problem with the clutch engaging, I had the car stopped again and was reaching down and turning the pump by hand again seeing if I could feel anything wrong with the pulley or compressor. And that’s when it figuratively struck me and quite literally cut me.
I took my hand out to see a 6mm piece of jagged metal stuck in my middle finger. I pulled it out and looked back down again only to see what wasn’t obvious before
You can probably just see there a piece of silver broken metal.
I went on eBay (usually the best place for pictures of disassembled parts, to find a picture of the clutch and found this
The outer and inner part of the clutch are connected by those three silver bars/arms, and on mine one of them was broken in half. I turned the clutch over again and found the other two had completely disconnected.
Looking at the picture above it looks like they are pretty badly made and only pushed into some sort of hole on the pulley there is no bolt or rivet. My theory is that over the last 7 years of the aircon being run permanently when. The car is running, the cycling of the clutch on and off finally caused those push fittings to detach on a couple of the metal bars and the resulting pressure on the one remaining bat caused it to break in two.
Now the forensic investigation is over it needs to be fixed. My local vw people are only 100 yards from my house so I’ll drop in and see them tomorrow and see if there is a official VW clutch replacement they can drop in for me, I’m fairly confident the rest of the system is ok.
Even then I am not looking forward to the bill.