|
|
|
|
Post Reply |
|
Thread Tools | Search this Thread |
04-17-2017, 12:06 PM | #1 |
Brigadier General
3475
Rep 3,722
Posts |
Auto-dim mirrors always dark and headlights always on in auto-mode
Having a weird issue that I'm guessing is related to my windshield being replaced recently (by certified BMW collision center). When my headlights are in auto-on mode, they are always on, even in bright midday sunlight. Additionally, my auto-dimming mirrors are always dimmed now. Any thoughts for a simple fix?
__________________
"Tobias" 2013 135i ///M-Sport 6MT • Pure Stage 1 • XDI 35 HPFP • 404whp/440wtq |
04-17-2017, 12:37 PM | #2 |
Loves me some MHD!
1858
Rep 1,719
Posts |
Curious what you learn about this- my auto headlights are way to quick to turn on, and once on will stay on through several minutes of direct sunlight. I've pretty much given up on the automagic part of this business as a result.
__________________
1and1
135i - E82.N54 2009 BSM - MHD / xHP / DCI, PR CP & 7.5" Race IC / N55 mid & Borla . . WL RSFI, Koni, Eibach & Dinan CP's, M3 CA's / EBC Red's & Firehawk 500's X1 - E84.N20 2013 MGM - JB4 - The Wife's, now with new turbo & ewg |
Appreciate
0
|
04-17-2017, 01:08 PM | #3 |
Brigadier General
3475
Rep 3,722
Posts |
Mine worked great previously, and that sounds more like a sensitivity issue, which you can have adjusted at a BMW dealership for free in most cases
__________________
"Tobias" 2013 135i ///M-Sport 6MT • Pure Stage 1 • XDI 35 HPFP • 404whp/440wtq |
Appreciate
0
|
04-17-2017, 06:05 PM | #4 |
Captain
519
Rep 894
Posts |
The autodim mirrors use the sensors in the mirror to decide whether to dim, the car uses the sensor behind the mirror to turn on headlights, could the windshield have some sort of coating on it thats blocking the sensors from working? Does the rain sensor work (rain and light sensor are in the same housing)
__________________
|
Appreciate
0
|
04-17-2017, 06:17 PM | #5 |
Loves me some MHD!
1858
Rep 1,719
Posts |
Rain sensor is a great idea for comparison test! May be that they didn't re-connect everything from that area?
__________________
1and1
135i - E82.N54 2009 BSM - MHD / xHP / DCI, PR CP & 7.5" Race IC / N55 mid & Borla . . WL RSFI, Koni, Eibach & Dinan CP's, M3 CA's / EBC Red's & Firehawk 500's X1 - E84.N20 2013 MGM - JB4 - The Wife's, now with new turbo & ewg |
Appreciate
0
|
04-17-2017, 06:27 PM | #6 |
Brigadier General
5150
Rep 3,241
Posts |
The sensors for the autodim for the mirrors are on the inside rear view mirror itself. If you look on the right side behind the mirror itself, you'll see a clear plastic square. This is the sensor that measures the ambient light. The other sensor is on the mirror face that's a small oval. I wanted to test the operation of the auto dim on the mirrors. So I covered up the plastic square with my finger and used a flashlight to shine directly not the mirror sensor.
Not sure if the ambient light sensor on the backside of the mirror also controls operation of the headlights in auto mode. |
Appreciate
0
|
04-18-2017, 09:48 AM | #7 |
Brigadier General
3475
Rep 3,722
Posts |
I'll test out the rain sensor and see if that works. They're going to look at it Friday if I can't get it to work myself.
__________________
"Tobias" 2013 135i ///M-Sport 6MT • Pure Stage 1 • XDI 35 HPFP • 404whp/440wtq |
Appreciate
0
|
04-18-2017, 09:55 PM | #8 |
Former Opel GT Pilot
327
Rep 771
Posts |
I think the sensors are attached to the windshield with double-sided tape. When I had my windshield replaced, I ordered a stock windshield through my BMW dealer. The BMW parts counter guy automatically added new sensors to my order. I asked if the ones currently in the mirror could be reused. He did not know. He always just ordered them automatically if the car was so equipped. So, I asked the windshield installer if they could be reused. He agreed to try. He just had to remove them from the old windshield and use new tape to attach them to the new windshield inside the mirror base. Saved me a couple hundred and I haven't had a problem at all.
I told you this story thinking that your windshield installer might not have reused the sensors correctly, e.g., tape in the wrong place, cables not attached correctly, or sensor window accidentally covered. Just a guess. Peace...Mack
__________________
So, that's it. I am doomed. There is no patch, no methadone, no substitute. Curse you BMW. Curse you and your seamless power delivery. Curse the incredible sense of road feel. Curse the comfort, the luxury, the envious looks from the masses. I am... hopelessly addicted.
Last edited by mackeroni; 04-18-2017 at 09:57 PM.. Reason: grammar |
Appreciate
0
|
04-18-2017, 09:59 PM | #9 | |
Brigadier General
3475
Rep 3,722
Posts |
Quote:
__________________
"Tobias" 2013 135i ///M-Sport 6MT • Pure Stage 1 • XDI 35 HPFP • 404whp/440wtq |
|
Appreciate
0
|
04-20-2017, 05:42 PM | #10 | |
Loves me some MHD!
1858
Rep 1,719
Posts |
Curious if you've had a chance to look behind the rearview mirror yet? If not I'm hoping you take pics when you do! I'd love to see what you find-vs-what it should be like!
Quote:
Found the setting in the BC menu and fixed it! Was on the most sensitive of three settings. Changed to the least sensitive and so far it's behaving much much better!
__________________
1and1
135i - E82.N54 2009 BSM - MHD / xHP / DCI, PR CP & 7.5" Race IC / N55 mid & Borla . . WL RSFI, Koni, Eibach & Dinan CP's, M3 CA's / EBC Red's & Firehawk 500's X1 - E84.N20 2013 MGM - JB4 - The Wife's, now with new turbo & ewg |
|
Appreciate
1
Matticus913474.50 |
04-20-2017, 10:24 PM | #11 | ||
Brigadier General
3475
Rep 3,722
Posts |
Quote:
Quote:
Nice!! Glad to hear it was a simple fix
__________________
"Tobias" 2013 135i ///M-Sport 6MT • Pure Stage 1 • XDI 35 HPFP • 404whp/440wtq |
||
Appreciate
0
|
04-21-2017, 11:43 AM | #12 | |
Second Lieutenant
65
Rep 275
Posts |
Quote:
|
|
Appreciate
0
|
04-21-2017, 11:51 AM | #13 |
Lieutenant
496
Rep 476
Posts |
|
Appreciate
0
|
04-21-2017, 12:32 PM | #14 | |
Brigadier General
3475
Rep 3,722
Posts |
Sadly they forgot about me coming in today and I didn't have the time to wait around for hours... Will be going back at some point next week to get this figured out.
Quote:
__________________
"Tobias" 2013 135i ///M-Sport 6MT • Pure Stage 1 • XDI 35 HPFP • 404whp/440wtq |
|
Appreciate
0
|
04-21-2017, 05:03 PM | #15 |
Brigadier General
5150
Rep 3,241
Posts |
The button at the end of the turn signal labeled BC. Hitting it will move through a bunch of different options that scroll through the alpha display in the gauge cluster.
|
Appreciate
0
|
04-21-2017, 06:33 PM | #16 | |
Loves me some MHD!
1858
Rep 1,719
Posts |
Quote:
check the new diy- DIY: Adjust automatic headlight sensitivity
__________________
1and1
135i - E82.N54 2009 BSM - MHD / xHP / DCI, PR CP & 7.5" Race IC / N55 mid & Borla . . WL RSFI, Koni, Eibach & Dinan CP's, M3 CA's / EBC Red's & Firehawk 500's X1 - E84.N20 2013 MGM - JB4 - The Wife's, now with new turbo & ewg |
|
Appreciate
0
|
04-23-2017, 09:54 PM | #17 | |
Lieutenant
496
Rep 476
Posts |
Quote:
|
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|