Hi I have an 02 disco td5 xs auto. It has been having a prob changing gear when you put your foot down to overtake, it lunges?This was an intermitant problem but now the s and m light flash when changing from drive to reverse and vice versa, again this is intermitant? You have to turn the engine off for the later problem for it to reset? Spoke to the garage and they said that it wouldn't need an ATF oil change until 90+k miles? it has had a full landrover service history up until 80k ish miles? Anyone got any ideas? Should I just book it in for and ATF oil and filter change regardless of what the garage said?:doh: