Ferrari Mailing List: Technical question

[Dave Craig (dave.craig]

Exactly where is the speedometer sending unit on a Mondial QV (I assume it
is the same for the 308QV) and what does it look like?  I can't seam to find
it in the repair manual, spare parts book, or even the wiring diagram.  I
have developed an intermittent speedometer and separate odometer (they
simultaneously both work accurately and then both don't work at all; working
approximately 70% of the time).  That makes me fairly certain that the
problem is the sender or the wiring between the sender and the dash.  I will
be doing an oil change in the next day or so and want to look at it while I
am under the car, but can't find a picture of it or a description of it
anywhere. 

Thanks,   

Dave Craig