Hi i have a 2003 galaxy tdi automatic that is playing up a bit ,it starts first turn of the key hot or cold but some mornings it is cutting out about 5 minutes after starting( sometimes i pick a friend up for work who live less than a minute from me and have noticed it happens more often if i sit with the car ticking over waiting for him to come out in the morning) , it then nearly flattens the battery restarting it again (turning it over for 30 or so seconds) once it is restarted you can switch it off and it will restart instantly , also it is going into a limp mode occasionally when cold although no lights are coming on , if i pull over and restart it you then have full power it very rarely does this when up to running temperature,i have replaced the air mass sensor which made a huge difference as before it was going into limp mode all the time hot or cold i have also taken the egr off and cleaned it with brake cleaner . any suggestions would be much appreciated