Hi I am new to this forum,

I purchased a Ford Focus Diesel 1.6 Ghia a few months ago from a private dealer. As we have had a bit of warm weather I tried the Air Con and it did not work. :(

After reading various bits on the net and watching the Mk1 video on Youtube I went about trying to fault find it.

I took it to Hal..... to get it topped up and they said that the system had a fault and was over full and that I would need to take it to a specialist to fix it.

I then went to a local specialist who told me that the system was not over full but needed no extra and that it may have an electrical fault which they could not fix.

I took my car home and checked the obvious, Fuse and relay which were both OK. I then shorted out the relay pins to make the pump clutch activate which it did. I repeated this with the engine running and the centre part rotated fine when activated.

I checked for 12v on the relay which was also ok. I then checked the overflow switch which read short circuit which I believe is ok according to the Youtube video for the MK1. There is another switch connected to the metal pipe with 4 wires coming from it, not sure what that does or what it should read?

I am now stumped and do not what to check next as I do not have a wiring diagram for the MK2 apart from the sketchy Haynes one which shows very little.

Can anyone please help me with further fault finding steps to get this working? as the stealerships want £90+ to diagnose it and do not guarantee it wont be more.

Thank You

High pressure switch may be faulty or the systems over pressurised either way the aircon will not work the low pressure switch may also be at fault a Mobil aircon guy will test it and diagnose it fir a lot less

When did you buy the car? of you bought it in the last 6 months, take it back to the trader and tell him to get it fixed, as is your consumer right under the sale of goods act. (check signature :))