this is driving me insane now. the cars a 2.0 tdi the battery light flickers when driving hard are round corners,and sometimes even cuts out! then turns back on has though the battery has been disconnected then back on.... but even more wierdly the DPF warning light comes on the CAN display when the car turns back on after its cut off.... but i dont have a DPF because mine is the 140 BPW engine, battery is fine and alternator has been tested. ive had it plugged into VCDS and the over boost code came up ive had the VNT's cleaned and now its going to the garage for a new turbo does anyone know if all these faults are linked? sorry for the speel but am at wits end with it now and am just goner sell it if it carrys on.