T4 air conditioning - Denso?

[Racemag]

I've read online that VW T4 airconditioning was Denso stuff...is this true? It looks like bosch.

[Seano]

Mine was a Denso...it isn't now. Well the compressor isn't!

[Bug_racer]

I've read online that VW T4 airconditioning was Denso stuff...is this true? It looks like bosch.

Caravelles were the only ones with factory air , all T4s were locally fitten with Nippondenso units

[Bug_racer]

Mine was a Denso...it isn't now. Well the compressor isn't!

Nippondenso units used Sanden compressors

[jets]

I can't confirm that the Caravelles had factory air but can that the transporters have Nippondenso air using Sanden compressors as Bug_racer has said.

[Racemag]

what are the usual problems with the system? The airconditioning in my double cab does not work at all.

[Sunny43.5]

I would presume you have checked all electrical details if you have the engine on you should hear a discernible click and a slight change of engine revs as the compressor kicks in .If this was the case what about the gas level has that been checked , just some ideas .

[jets]

Gas pressure is the first place I would look. I have been told the compressor wont activate if there isn't enough gas.

[Bug_racer]

Make sure the fans work , preferably both of them , they should come on as soon as you turn the interior fan on .
Then Id look at re-gassing and checking to see if the compressor still works

Another thing these were bad for is drive belt tensioners seizing up .

[Racemag]

Make sure the fans work , preferably both of them , they should come on as soon as you turn the interior fan on .
Then Id look at re-gassing and checking to see if the compressor still works

Another thing these were bad for is drive belt tensioners seizing up .

Gradually working my way through things.