Hello new to this so need all the help I can get. Please. I have a 1998 freelander which, touch wood, is running fine. However, it has had the dowhill descent on for the 14 years we have had it with no problems. So we have just ignored it like they told us to as its just a glitch. Now its been for its MOT and failed because the light is on as it has always been. The garage has charged me £200.00 to put it through its MOT but now say they cannot fix it. Any ideas would be more than welcome. Thank you.