Air conditioning not working.

[alexaescht]

Hmmm, so it's about 26 outside and turned the car on and the fan was blowing, but the air was just as hot as outside. The ac was on auto and was set to about 20. Came home, switched the car off and back on again and now it works again.

Why?

[nomadx38]

Could be just a glitch with the climate control. Mabey it didn't enable the clutch on the air conditioning compressor...

If you were just idleing at home there may not have been enough revs for the compressor to compress the gas for refrigeration...

Could just be random like mine tends to do when I take off and stop quickly, it cycles the compressor off then on again...

[gavs]

When it's on auto, the AC won't always be on if you have knocked the AC button on the Climatronic unit and switched AC off.

[alexaescht]

Nah the AC was on and we weren't idling, we were driving up Harkaway road doing 80 km/h. It's done it before when the DPF was doing its thing but I put that down to the increased heat in the engine bay.
Must just be a weird glitch.

[pepperpolo]

I've actually had this occur a few times as well. I found it was dependent on the weather and where the car is. For example when it is 24/25 (or so) outside but the basement car park was quite cool, car comes out of the basement and the air cond didn't work. No amount of on/offing of the climate control would start it. Quick restart of enging fixed it.

On all occasions it occured (maybe 3 times), the car was in the basement and the temp outside was a little warmer, warm enough to need the air cond.

Always works again after engine re-start.

[alexaescht]

I've actually had this occur a few times as well. I found it was dependent on the weather and where the car is. For example when it is 24/25 (or so) outside but the basement car park was quite cool, car comes out of the basement and the air cond didn't work. No amount of on/offing of the climate control would start it. Quick restart of enging fixed it.

On all occasions it occured (maybe 3 times), the car was in the basement and the temp outside was a little warmer, warm enough to need the air cond.

Always works again after engine re-start.

Huh, ok. Thanks for your input
VW's and their strange glitches...