One problem related to front seat heater/cooler has been reported for the 2003 Land Rover Discovery. The most recently reported issues are listed below.
The first issue is about a seat fire. My husband was just pulling into our drive when the drivers seat heater burned a hole in the left side of the seat causing him to have a burn. The second problem is the oil pump. I heard a noise coming from the engine, and asked our mechanic what might have been the cause of the noise. He said the the oil pump was bad and we will have to replace the oil pump and if there was damage to the engine would have to replace that too. I understand that there was a technical alert dated March 14, 2003, just three months after I purchased my car. A class action suit was started in may 2003 but I was not informed of the suit. I called Land Rover of America and was told I was the only Land Rover owner to have a fire in the seat, which I found was untrue then I called them back when the oil pump went and said that my car was out of warrantyand was too old for Land Rover to do anything for me. The car has about 100,000 miles on it. We lived in juneau at the time and there are few roads. We were there until 2007 when we moved to montana. I am tired of excuses from the manufacturer. I paid almost $40,000dollars for the car that should last me a long time. It was to be my retirement car. Other people have had the same problems that I have experianced to no avail.