  The colour and luminosity distributions of red galaxies in the cluster Abell
1185 (z=0.0325) were studied down to M*+8 in the B, V and R bands. The
colour-magnitude (hereafter CM) relation is linear without evidence for a
significant bending down to absolute magnitudes which are seldom probed in
literature (M_R=-12.5 mag). The CM relation is thin (+/-0.04 mag) and its
thickness is quite independent from the magnitude. The luminosity function of
red galaxies in Abell 1185 is adequately described by a Schechter function,
with a characteristic magnitude and a faint end slope that also well describe
the LF of red galaxies in other clusters. There is no passband dependency of
the LF shape other than an obvious M* shift due to the colour of the considered
population. Finally, we conclude that, based on colours and luminosity, red
galaxies form an homogeneous population over four decades in stellar mass,
providing a second evidence against faint red galaxies being a recent cluster
population.
