I recently got a s/h 2010 Octavia Elegance, very happy so far.

 

It has auto dimming rear view mirror, and the driver side mirror appears to also be auto dimming. However the passenger side isn't,, could this be because the glass has been replaced with a non-dimming replacement or is it not meant to be auto dimming on passenger side?

 

The side mirrors are not auto dimming but have some tinting. Since you also look at the mirrors through the tinted side windows, plus the effect of curvature of the mirror glass, I have never felt that they need to be electrically auto dimmed as well.

Perhaps you have a clear replacement mirror on the near side? Perhaps even a flat glass?

Found this in an old topic:

 

Pre FL had autodimming (if std or ordered as an option) on both sides.

FL only on drivers side (doesnt matter whether LHD or RHD).

The older mirror glass has a black "piping" around the glass. The newer dont have that anymore.

 

 

Mine is FL so this makes sense. Driver side is defo auto dimming, and has a faint black border on the glass.

Border around dimming mirror

My 2012 Elegance model does not have the black line on the mirror.

I checked the build codes of my car and it has "5SJ Left exterior mirror: LRight exterior mirror: Right exterior mirror: aspherical " and "6XD Exterior mirror setting: Exterior mirrors: electrically adjustable/heated"    No mention of auto dimming.

 

I guess that must be a difference between model years. I have never found a need for auto dimming on the external mirrors so perhaps there is difference in the glass tint or the aspherical glass parameters between these model years.

 

 

On 27/01/2022 at 23:21, pikpilot said:

My 2012 Elegance model does not have the black line on the mirror.

I checked the build codes of my car and it has "5SJ Left exterior mirror: LRight exterior mirror: Right exterior mirror: aspherical " and "6XD Exterior mirror setting: Exterior mirrors: electrically adjustable/heated"    No mention of auto dimming.

 

I guess that must be a difference between model years. I have never found a need for auto dimming on the external mirrors so perhaps there is difference in the glass tint or the aspherical glass parameters between these model years.

 

 

 

Same as mine - in all respects.