Hi all, Im after some technical help, i have a 2004 touareg 3l v6 tdi bks, im having issues with slow cranking, i replaced the battery a few weeks ago, and then it started happening again, ive checked charging voltage on a new battery and im getting around 13.9v however its the current output that concerns me, with an amp meter im charging at 13 amps at peak, which slowly drops to 2amps even though the battery needs charge i.e. its cca should be 750 and it was 650 before starting. Makes no difference on load/off load, idle or 3k rpm, nothing changes. Im suspecting the alternator however the dfm signal is what im unsure about, does the alternator provide an output to the ecu from the dfm pin or does the ecu tell the alternator how much current is required? Ive tried voltage drop tests, all my wiring is fine. Any advice would be greatly appreciated