need help with codes a6 multronic

[martyn brooks]

hi i have a 2004 a6tdi 130 sport with multronic g/box .my problem is the p.r.n.d.s.lights on dash keep flashing..i have managed to get a snap on diognostics hooked up .and the following has come up. to which i need help/advice.......17090 transmition range sensor f125 implausable signal p0706 intermitant 4b0910155cv30-01j 1.9ltdrwd 3120 coding 0000001 wfc 004926.......sombody said it could be a multifunctional switch ???????? i phoned audi and they say its in g/box £850+ and said f125 is a brake switch????? could checking cleaning wires /conecting be problem.and would anything need recoding if disconecting.and anybody know how to remove m.f.switch..help needed as not got £850+ ..can m.f.switches be repaired/if so does anybody know where......hope sombody can help as i need car for work everyday

[NickPicks]

I think you'd be better off posting this in the A6 section, which gets a lot more views.

From other posts there about flashing prnds, it's likely to be the gearbox ecu, which I think costs about £1400 to replace, although I think they can be repaired.

Swing by the A6 C5 Forum (http://www.vwaudiforum.co.uk/forum/forumdisplay.php?f=327) and have a read.