Right, an update on this. I went out to the car earlier and turned the ignition on. To my total disbelief the ABS light went out shortly followed by the air bag light!!
I started her up and the ABS light came on for 2 seconds then went out again. Is this the normal light sequence for a car with working ABS? I went out for a spin in the rain and did a couple of very hard stops and couldnt get the wheels to lock up, however i am not feeling any feedback or anything through the brake pedal so i cant tell if this is just a combination of good tyres and brakes etc or the ABS that is stopping me from skidding?
Very strange, why would it suddenly come to life? Has the car only just realised all the sensors etc are working?
Thanks for all your comments and help so far on this. Any further feedback is greatly appreciated.