[V6-12v] neutral safety switch part #

[Ben Kwan]

Hi everyone,

I have a problem with the reverse lights on my 92 100CSq.

Symptoms:

1. Reverse lights illuminate in all gear selections except for neutral
2. interlock mechanism clicks when in drive after releasing the brake from a
complete stop.  I always thought the mechanism works in Neutral or Park.

Has anyone run into this problem before?

Did some research on the internet and found that this could be the infamous
neutral safety/multifunction switch that's tucked on top of the tranny
behind one of the mounts.  Does anyone have one laying around that might be
from a 92 100CSq?  I need the ZF part number on the unit in order to get the
correct unit.  The Audi part number is 4A0 919 821 but DAD's Auto is telling
me that there were a few versions of the switch for those cars.

Thanks,
Ben

92 100CSq
94 90S
01 A41.8tq