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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > BMW Coding > Hmm, weird issue with folding mirrors while washing car.



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      05-05-2016, 01:40 PM   #1
BeastMode335i
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Hmm, weird issue with folding mirrors while washing car.

So I coded in the feature for my windows to roll up and mirrors fold in when I lock my car, and now I noticed whenever I wash my car, my mirrors fold in and doors lock, but I'm not touching the locks or keyfob..

Anyone else experience this before..?? Almost like a rain sensor or something is telling my doors to lock and mirrors to fold lol..
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      05-05-2016, 02:49 PM   #2
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haha same thing happens to me with comfort access. I guess the door handle is detecting heat change or something from the water?
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      05-05-2016, 09:33 PM   #3
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Originally Posted by bNks334 View Post
haha same thing happens to me with comfort access. I guess the door handle is detecting heat change or something from the water?
Lol ok so I'm not alone, feel better.
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      05-06-2016, 01:28 AM   #4
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Leave your key inside and it will not lock (well, may be take the key hole one with you just in case)
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      05-06-2016, 06:16 AM   #5
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Lol, that'd be some shit to get locked out at the car wash cuz my car is being sensitive lolll..
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      05-06-2016, 07:12 AM   #6
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BeastMode335 could you try and get the car a wet but with one window open, and see if it closes the window as well?

If that's the case then most likely it is the rain sensor, which is a nice mod in case you forget to close your sunroof when it rains.
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      05-06-2016, 07:18 AM   #7
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Quote:
Originally Posted by Wolf 335 View Post
BeastMode335 could you try and get the car a wet but with one window open, and see if it closes the window as well?

If that's the case then most likely it is the rain sensor, which is a nice mod in case you forget to close your sunroof when it rains.
Truuuuuuu that..! I didn't think about that lol..

I just gotta find where the rain sensor on our cars is and I'll give it a shot lol, is it built into my homelink mirror or something..??
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      05-06-2016, 07:50 AM   #8
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My car seems to lock and the mirrors fold when water hits the door handle... I just figured it was the code I did to fold the mirrors and close the sunroof with a 3 second hold of the handle.
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      05-06-2016, 08:01 AM   #9
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Quote:
Originally Posted by bNks334 View Post
My car seems to lock and the mirrors fold when water hits the door handle... I just figured it was the code I did to fold the mirrors and close the sunroof with a 3 second hold of the handle.
Yeah that's what mines doing, but I wonder now if the windows would close as well? I've only noticed it with the windows already put up..
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      05-06-2016, 08:03 AM   #10
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This is normal with comfort access and the "fold mirrors" code. Annoying, but normal.
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      05-06-2016, 08:19 AM   #11
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Quote:
Originally Posted by larrysing View Post
This is normal with comfort access and the "fold mirrors" code. Annoying, but normal.
So do you know if it will put the windows up as well since that was a part of that coding that I did..?? Kind of like a protective measure if you forget to put'm up and it starts raining..
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      05-06-2016, 08:36 AM   #12
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Quote:
Originally Posted by BeastMode335i View Post
So do you know if it will put the windows up as well since that was a part of that coding that I did..?? Kind of like a protective measure if you forget to put'm up and it starts raining..
I do know for sure it closes the sun roof, but the windows. I haven't tested.

You can test that in a car wash though - leave the passenger front window down and start washing the car on the driver's side. When the mirrors fold, the open window on the other side will either close or stay down
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      05-06-2016, 08:38 AM   #13
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Same issue as well. I just leave inside the car and take the little one out. Worse case I go on through the trunk.. Has yet to happen tho
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      05-06-2016, 08:48 AM   #14
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Quote:
Originally Posted by BeastMode335i View Post
So do you know if it will put the windows up as well since that was a part of that coding that I did..?? Kind of like a protective measure if you forget to put'm up and it starts raining..
It will only do it if the key fob is close to the car. Don't expect it to happen automatically. I've left my sunroof popped and even in pouring rain no water got in.

The coding can vary. I set mine up to close the windows and fold the mirrors with a long press of the handle. The mirrors fold themselves fully once the process starts. However, the windows require holding the car handle until they are fully shut. That is probably why the mirrors fold and unfold as you wash the car but the windows don't close.

I don't think this is a protective measure... or any kind of rain sensor. I think the car just thinks you're touching the handle and begins the coding routine to shut everything.
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      05-06-2016, 08:57 AM   #15
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Quote:
Originally Posted by Wolf 335 View Post
BeastMode335 could you try and get the car a wet but with one window open, and see if it closes the window as well?

If that's the case then most likely it is the rain sensor, which is a nice mod in case you forget to close your sunroof when it rains.
That's not how that feature works. It only closes the sunroof and it only works when the car is on, with the auto wipers enabled.
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      05-06-2016, 10:40 AM   #16
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I knew I wasn't alone lol, I'm going to wash my car tomorrow and test this out.. If all else fails, I'll have some freshly washed dakota black leather interior for sale haha...
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      05-06-2016, 11:15 AM   #17
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Quote:
Originally Posted by matteblue3er View Post
That's not how that feature works. It only closes the sunroof and it only works when the car is on, with the auto wipers enabled.
Do you know what coding is required for this?

I have a friend that is trying to figure this out but is stuck.
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      05-06-2016, 03:30 PM   #18
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to close windows and sunroof upon rain detection requires the car to be turned on was my understanding
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      05-06-2016, 03:38 PM   #19
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to close windows and sunroof upon rain detection requires the car to be turned on was my understanding
Oh truu, I do believe that Betty has a personality and mind of her own though, so it wouldn't surprise me for her to just open and close shit whenever she felt the need to lol.. "Black Betty" is my whips alter-ego
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      05-06-2016, 03:41 PM   #20
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Rain sensor is under rear view mirror. The car won't let you lock keys in it. It's a German car thing. Now an American car, different story.
I took my girlfriends C5 corvette for a wash. Left keys in it as normal. Got done and locked out. So sitting in wash bay on a beautiful day with a line of cars wanting a wash. 45 min later my girl shows with 2nd key. I found out the next day that shaking car activates key and unlocks car. Felt like a real dumbass.
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      05-06-2016, 04:27 PM   #21
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Quote:
Originally Posted by 08njSTEP View Post
Rain sensor is under rear view mirror. The car won't let you lock keys in it. It's a German car thing. Now an American car, different story.
I took my girlfriends C5 corvette for a wash. Left keys in it as normal. Got done and locked out. So sitting in wash bay on a beautiful day with a line of cars wanting a wash. 45 min later my girl shows with 2nd key. I found out the next day that shaking car activates key and unlocks car. Felt like a real dumbass.
I've gotten locked out before leaving they key fob inside the car when washing. Luckily I was at home so I had my second key.

Best to keep the metal key on you or if washing at home just leave the key in the house instead of in your pocket when washing.
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      05-06-2016, 05:09 PM   #22
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This happens every time I hand wash my car.

It's the CA acting up.
The car will lock, unlock, fold mirrors etc. I just put the key aside far enough CA doesn't work.
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