Side mirrors' obscure feature?

[Igor Kessel <four_rings@worldnet.att.net>]

Folks,
I scrutinised the vol.3 Bentley trying to find out if the side mirrors
of a '92-'94 100/S4 were electrically identical to the side mirrors of a
'95-'97 A6/S6. They are not.

The later cars have not two but three motors in each mirror, the third
one being for some "mirror fold-in adjustment".

I pushed the mirrors in on my S6 and did not hear any gears crunching.
Does anyone know what purpose do those third motors serve?

I'd like to buy a set of mirrors from a wrecked pearl white (L0B9 paint
code) '92-'94 100/S4 for obvious reasons.
 
-- 
Igor Kessel
Back to two turbo quattros.