PDX_TDI
Well-known member
Could be caused by bad biodiesel. Happened to me and many others, caused no harm and problem went away after that tank of fuel. See this thread: http://forums.tdiclub.com/showthread.php?t=81614&page=15
also here is mogolf's thread with complete list of possible causes of a flashing glow plug light: http://forums.tdiclub.com/showthread.php?t=67848
wow..bad biodiesel....thats new one. I have recently started putting bio in my car and i have the blinking gp light....comes n goes.....nothing thats consistent...