Automatic Dimming interior rear-view mirror

[ox518]

If you put your finger over it and it goes darker its working. It doesn't work in the daytime unless its overcast or the light behind you is extremely bright. It goes back to normal when you tested it because you're letting more ambient light in bt taking your finger off - that' s normal.
Check the angle of your mirror ? clean the sensor?

The angle should not be a problem as nothing is blocking the view. I will try to clean the sensor tomorrow. Just use wet cloth?

[PassatB6]

The angle should not be a problem as nothing is blocking the view. I will try to clean the sensor tomorrow. Just use wet cloth?

To be honest, that is simply a suggestion. I could not guarantee that it is effective or even the right thing to do so I can't say how it should be done. I think you'll find that it is working OK and according to its own rules not to how we think it should work. Same goes for rain sensing wipers. Everyone has a different opinion as to whether they work properly or not simply because they have different expectations.

[cktsi]

To be honest, that is simply a suggestion. I could not guarantee that it is effective or even the right thing to do so I can't say how it should be done. I think you'll find that it is working OK and according to its own rules not to how we think it should work. Same goes for rain sensing wipers. Everyone has a different opinion as to whether they work properly or not simply because they have different expectations.

No, I think if there's a bright light, it should dim. My Mark V and Mark VI always dimmed based on the light intensity. Ox's problem sounds like the sensor doesn't react at all.

I would take it into the workshop to be looked at (I know it's a pain but worth it).

[ox518]

Guess what, it works now.....

Well, actually it works all the time, but I just realized that when I arrived Sydney.

I thought it did not work just because there are only a few cars on Canberra's road.......which means there were not enough light came through due to only 2-3 cars behind me most time during the night in Canberra.

And finally, the problem has been solved in front of hundreds cars in Sydney.........

Thank you everyone.

[mickofoz]

We aim to please...