I have only owned my Disco 2, 2001 model for 4 weeks (Auto). I noticed that hot air is blowing on my left leg as I drive to the point of becoming unbearable after 20min driving. The heating system is not on and the hot air stops as I stop and then resumes as speed increases. Is their a heat shield missing? Is one suppose to be there? As I run my hand along the console and up under the dash its crazy hot?? Any suggestions would be greatly appreciated.