Well, i have looked at and cleaned just everything i can lay my hands on under the hood!...even had a can of BG44K through the fuel tank.

I must say, when the Air con' is not 'ON' it runs really sweet (idles around 750 rpm in neutral)....When the A/C is ON it does now seem to drive better while on the move but you can still feel a slight surge in revs when the compressor cuts in but it does not seem so pronounced as it was....nevertheless, it is still there!

I guess i will just have to live with it.......does anybody know if there is a particular vacuum pipe which is related to the Air con'.....in the sense that it would have an effect on the revs of the engine when the A/C is ON (if it is solely the ECU that governs the idle speed when the compressor is working, then there will be nothing i can do about it? !)

Sounds like i could do with an Automotive Air Conditioning specialist

Cheers guys and thank you very much