Auto tilting reverse mirror problem!

[er0977]

I just post a video on YouTube about it

Link here. https://youtu.be/8BVwzqJlZc0

[rednelb]

I took mine apart and cleaned the variable resistors/sensors. They were very clean. I even opened up the plastic casing with the little circuit board.

They still act up when in reverse. What is odd is that the seat memory buttons will move the mirrors to the proper position. I would assume that the reverse tilt and seat memory locations are all stored in the same place.

[The00Dustin]

They still act up when in reverse. What is odd is that the seat memory buttons will move the mirrors to the proper position. I would assume that the reverse tilt and seat memory locations are all stored in the same place.

The settings are stored in the same place. Your issue sounds like an easy-to-fix one that must not be discussed in this thread. Here's the theory:
The setting for how for down the mirror should go in reverse is relative to the setting for where the mirror is when not in reverse. As such, if you keep your mirrors pretty low to begin with, the adjustment for reverse attempts to go too far, leading to the clicking. To resolve this, you simply need to put the vehicle in reverse, adjust the mirror to where you want it in reverse, and then save your seat memory setting. In a perfect world (one where the mirror knows its position), once you take it out of reverse, the mirror will go back to where it normally is and the issue will be solved. If the mirror does not do that, then you do a bigger issue. At that point you will want to adjust for the normal setting again and save, and you may want to try making and saving both adjustments back and forth in an attempt to get the clicking to stop. The only reason to try repeatedly would be if the number of clicks was reducing each time, which would imply you were probably making progress. If that doesn't work and you don't want to replace the part, you have the option of simply turning off the feature (set the mirror adjustment selector to the center [neither mirror] position).

[er0977]

Save your setting with the memory buttons and right after that press the unlock button on your remoto to save this setting. When you go to your vehicle and unlock it, it will remember you and will make the adjustments to your remote. Mine some times when is humid still act up but it is not always only if it rains or early in the morning. The rest of the time works great. If it is a dry morning it work correct. Mos of the times it just turn to the fight too far but not always. I know his piece is the problem. I try to get it but can't find where to buy only this part. If anyone knows please let me know. I want to try a new one. Mine when I measure it it does not always read the same. That is why it fails. It is worn out and the dad is not exact always and can't get to the correct position.

[rednelb]

" As such, if you keep your mirrors pretty low to begin with, the adjustment for reverse attempts to go too far, leading to the clicking. To resolve this, you simply need to put the vehicle in reverse, adjust the mirror to where you want it in reverse, and then save your seat memory setting. In a perfect world (one where the mirror knows its position), once you take it out of reverse,"

I don't think you can set any memory settings if the car is not in PARK.

To your other point, I raised the mirrors all the way up, put car in reverse and basically did the same thing. It may have only clicked once before stopping, but it still did not save in memory after I set the mirror to my preferred setting.

[The00Dustin]

I don't think you can set any memory settings if the car is not in PARK.

I'm almost certain I did in my 06 M45 when I had the same problem years ago. If that wasn't the ticket, the trick was probably to adjust them after they are done clicking while still in reverse, then save in park.

To your other point, I raised the mirrors all the way up, put car in reverse and basically did the same thing. It may have only clicked once before stopping, but it still did not save in memory after I set the mirror to my preferred setting.

That does imply that it works how I explained it to work, but could also imply that the sensor another poster mentioned is inconsistent or degraded. In either case, if you are able to figure out how to save the reverse adjustment, it may resolve the issue at least temporarily.

[tmortati]

I have '08 M35x - driver's side mirror will repeatedly try to reset itself essentially pointing up and away from door when I use key fob or door button to open car and it tries to do so repeatedly. This happens with the mirror control switch set to middle/neutral and I have replaced the switch to no avail. Will sometimes happen on passenger side but 9 times out of 10 on driver's side and this happens every time I open the car. I saw above posts about replacing actuators so maybe that is the trick (dealer wanted to replace the whole mirror assembly). Not sure anyone else has had same issue as I am having (going on months now). Driving me nuts. Auto tilt reverse (a feature I rarely use so don't really care about it) also tilts in towards door but not down anymore.

[The00Dustin]

I have '08 M35x - driver's side mirror will repeatedly try to reset itself essentially pointing up and away from door when I use key fob or door button to open car and it tries to do so repeatedly. This happens with the mirror control switch set to middle/neutral and I have replaced the switch to no avail. Will sometimes happen on passenger side but 9 times out of 10 on driver's side and this happens every time I open the car. I saw above posts about replacing actuators so maybe that is the trick (dealer wanted to replace the whole mirror assembly). Not sure anyone else has had same issue as I am having (going on months now). Driving me nuts. Auto tilt reverse (a feature I rarely use so don't really care about it) also tilts in towards door but not down anymore.

This is probably the system trying to restore your memory settings each time you unlock the car. If you don't actually have multiple drivers, disabling that feature may resolve your issue. I can't tell you how to disable the feature off-hand, but I can tell you that it is disabled in my 06 M45, so I'm pretty confident that it can be disabled.

[tmortati]

The00Dustin - that didn't work either. I may resort to replacing the actuators and see if that does the trick.