Hi all I have a disco 2 4.0 v8 auto 2000 I've been having a look under the bonnet and I've noticed there are a couple of plastic pipes one thicker than thevother that come up from the left side of the engine from somewhere near the transfer box but there not connected to anything I also have a loose bit of plastic pipe under the left side of the front bumper could anyone tell my why and are they meant to be connected to something please.