Hi I have a 2008 RR vogue TDV8 3.6 diesel. When I put it in drive sometimes there is no drive other times its fine and will drive ok but then suddenly loses drive. if I slip it into sport mode or manual selection the problem goes away. also sometimes when in D and the drive goes the D goes out on the dashboard. is there a cable that goes from the gear lever to the gearbox that may have stretched or am I just being hopeful for a cheap fix on an auto box?