Audi Forum - View Single Post - 2001 A6 Automatic Multitronic Intermittent Fault

**Badger61** · 07-08-2007, 01:24 PM

Hi , yes I have seen this before,if you get the fault memory checked it may say "F125 implausible signal" this is due to debris or metal swarf on the magnetic sensor for gear position on the control unit in the gearbox.I have cured the problem by flushing the gearbox oil twice,if this doesn't work removing the control unit and clean the pickups, if still no joy after this then the only cure is to replace the control unit.

07-08-2007, 01:24 PM	#2 (permalink)
Badger61 Super Moderator Join Date: May 2007 Location: Hertfordshire Posts: 351 Gallery: (0)	Hi , yes I have seen this before,if you get the fault memory checked it may say "F125 implausible signal" this is due to debris or metal swarf on the magnetic sensor for gear position on the control unit in the gearbox.I have cured the problem by flushing the gearbox oil twice,if this doesn't work removing the control unit and clean the pickups, if still no joy after this then the only cure is to replace the control unit.