1988 2.6 LWB petrol.I have had it since new now with 90000 miles on the clock. It now only does about 2500 miles a year and is carefully maintained. However the heated rear window is not doing its job and only clears the lower section-and that not very well! It has never functioned properly.I have tested it and there is current flowing along all of the " fillaments" but only the lower ones feel warm. My son in law reckons it is a relay problem and there are not enough amps going through although the voltage is there. Can that be so?