Thanks, I am going to get the RAA to look at it today and this will all help. I haven't been to William Creek for some time so I can't answer that one for you. I will have to make a point of going and I'll get back.

I have a 2001 Defender Extreme with about 200000 on the clock. This is a recent purchase and I am fairly new to the turbo diesel. While driving along towards Coober Pedy (Far North of South Australia) we heard a noise similar to an explosion of air. I thought we had blown a tire. In any case...