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Post by slimer on Apr 30, 2022 12:34:20 GMT
Hello,
I just picked up a 2018 Golf R Spektrum and have a puzzling question for everybody. I can’t seem to find much information on google regarding this issue. At night, you adjust the brightness of the 7.5 Facelift R by the dial next to wheel just like every other MK7. Nighttime brightness is fine but during the day it doesn’t get any brighter in the screens at all. Yes I have tinted front windows BUT even if I roll them down 100% the screen bumps maybe 10% brightness and that’s it. When it’s sunny out and if you have sunglasses on, you can BARELY read the infotainment or the digital cockpit. I’ve got an OBD11 device ready and able to do what adjustments need to be made but the screen brightness just is way too dim for daytime driving. I do have a buddy that has a VCDS tool as well if I need him to do something as well. Can someone shed some light (no pun intended) on this issue. My other GTI I had and my Taos do not have this issue and they use similar digital cockpits and the same infotainment. I have also gone through every menu, every setting for lighting, etc and none of them do anything. It’s almost like it is stuck in nighttime mode for the interior lighting. Turning the headlight switch to ON only turns the backlit buttons and such but doesn’t affect brightness. The brightness seems constant and you can adjust the dial during the day even to dim it further which is strange. Any help would be fantastic!
Thank You!!!
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Post by vwjap on Apr 30, 2022 13:49:23 GMT
What dial next to the wheel? Maybe you have a different mib but on mine you go menu-car-settings-lights and adjust it in there
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Post by dv52 (Australia) on Apr 30, 2022 23:57:16 GMT
slimer : Ain't nothing unusual about your observations on MQB platform cars - happens all the time regardless of whether the car has an analogue dash, or AID. The daytime lighting level of the dashboard is entirely dependent on the following 2 x factors: - the amount of cabin illumination that falls onto the photo-transistor that's installed in the instrument panel
- the factory settings on a bunch of adaptation channels with the name "dimming_characteristic_curve" on the hex17 module.
And, the problem IS exacerbated if the car has tinted windows - rolling down the windows doesn't make much difference to the light level at the photo-transistor position on the instrument cluster
For AID modules in particular, I wrote an explanation of how this works HERE. However, whilst I suggest that you read my post as information, I don't recommend that you tweak the photo-transistor channels in your case.
Instead, I suggest this:
- Select the dashboard module @ address hex17
- Select Adaptation
- Enter "clock_dial_day" into the search box - select the 6 x "Y" channels like this:
- dimming_characteristic_curve_adjustment_clock_dial_day-Y1
- dimming_characteristic_curve_adjustment_clock_dial_day-Y2
- dimming_characteristic_curve_adjustment_clock_dial_day-Y3
- dimming_characteristic_curve_adjustment_clock_dial_day-Y4
- dimming_characteristic_curve_adjustment_clock_dial_day-Y5
- dimming_characteristic_curve_adjustment_clock_dial_day-Y6
These channels define set-points for the illumination level of the clock dials at different daylight levels in the cabin
- Change the value of these channels to suit your likes using these principles:
- "Y" number: the lower the "Y" number, the less the cabin daylight level that the channel controls - so Y1 controls clock illumination in the darkest cabin conditions and Y6 controls illumination when the cabin is brightest.
- Setting: The value for each channel sets the actual illumination level on the clock-dials. The higher the value, the greater the clock-dial illumination level. The permissible values for these channels are 0 to 64 (note: these are hexadecimal numbers - hex64 = decimal 100)
- Caution 1: I suggest that the factory value of Y1 and Y2 is NOT changed because these values result in the clock illumination switching off during dusk conditions - this provides a visual prompt to the driver to turn-on the headlights. This is a safety feature that is worthwhile keeping.
- Caution 2: Take note-of (meaning "write-down") the default factory values for the 6 x adaptation channels BEFORE making changes; you may need to revert to the original values if necessary
- At some point in the process, OBD11 will ask for a security code - use 47115
Examples: - Brightest clock illumination:
- Y1-00
- Y2-03
- Y3-64
- Y4-64
- Y5-64
- Y6-64
- Moderate clock illumination:
- Y1-01
- Y2-03
- Y3-10
- Y4-20
- Y5-46
- Y6-64
Don
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Post by slimer on May 1, 2022 14:56:26 GMT
This is so helpful. When I try on my brand new OBD 11 and I go into adaptations tells me there are no items available for this option. No matter what menu I try to approach it still gives me the same thing. I purchased the pro version I’m not sure if I need to do something else because I cannot get into any of the dimming characteristic curve adjustment menus as it gives me the same prompt.
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Post by vwjap on May 1, 2022 18:51:08 GMT
Just check in your settings you actually enabled the pro licence, also you have done a scan right? Plus you are connected to the car and not looking in the garage
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Post by slimer on May 2, 2022 3:54:32 GMT
Double triple checked everything. Connected to the device and car, PRO plan is activated, tried on 3 different devices all the same response.
Main screen after the scan is done I hit the Control Units icon in the bottom corner and go to DASHBOARD 17 like requested. All the options come up and I got Adaptations and search, and find the one for what to look for. When I select it I get this response “ No options available for this” and there’s nothing else to see.
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Post by slimer on May 2, 2022 3:55:29 GMT
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Post by dv52 (Australia) on May 2, 2022 6:08:28 GMT
I mean no offense - but I'm starting to think that vwjap is correct. Again, with no offense, the screenshot in your last post suggests that you are trying to access the adaptation channels in the hex17 module via the Garage function. You need to make sure that you have selected the Home tab at the bottom of the screen - then select Connect, then follow the on-screen prompts and wait until the software does its stuff.
If indeed you have used the correct method as described above - It's time to see how this car is equipped!! Please post-up a scan for the car. If you don't know how to do this -follow my visual instructions:  Don |
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Post by slimer on May 2, 2022 13:27:38 GMT
Hello! I scanned the car and attached the log now. In fact on the newest version of OBD11 and it’s software you cannot access Garage anymore once the car is connected to it. That icon on iPhone at least changes to Vehicle after the car is connected and scanned properly. When you select control modules you are in the Vehicle tab now and no possible way to be in Garage unless you are disconnected from the car. I’ve attached the log for you to see. On the newer version all the procedures are a little different from the older version it seems. Let me know what you see! Thanks  Attachments:OBDeleven_Log.txt (6.38 KB)
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Post by dv52 (Australia) on May 2, 2022 21:29:11 GMT
slimer : Yes, I'm aware of what happens when the OBD11 connects to the dongle -on the current version software, if you select "Garage" and then the car - you can access the module control list (same as when your "connect"). From this screen. you can access "adaptation" and the Parent list of channel names in the module (again, same as when you "connect"). If you click on a channel name - you get the the screen shot in your post saying "no items available in this option" Anyway, ain't nothing of note in your scan report to suggest why you can't access the Child channels.
I'm running out of suggestions -Check that your PRO account is set-up correctly - if you select "Profile", you should get something like this:
Likely your "Plan" will be different, but you should see "PRO" next to your name.
If your PRO account is set-up as per my screen - try making a back-up of the hex17 module - do the channels appear in the back-up records?
Don
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Post by vwjap on May 3, 2022 21:23:21 GMT
Looks like someone has been playing with the module list, 5f infotainment and radio,
Have you got a android device you can borrow? Just find it more reliable than iOS
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Post by slimer on May 7, 2022 13:10:29 GMT
slimer : Yes, I'm aware of what happens when the OBD11 connects to the dongle -on the current version software, if you select "Garage" and then the car - you can access the module control list (same as when your "connect"). From this screen. you can access "adaptation" and the Parent list of channel names in the module (again, same as when you "connect"). If you click on a channel name - you get the the screen shot in your post saying "no items available in this option" Anyway, ain't nothing of note in your scan report to suggest why you can't access the Child channels.
I'm running out of suggestions -Check that your PRO account is set-up correctly - if you select "Profile", you should get something like this:
Likely your "Plan" will be different, but you should see "PRO" next to your name.
If your PRO account is set-up as per my screen - try making a back-up of the hex17 module - do the channels appear in the back-up records?
Don
Alright, so, I’ve made sure I have PRO and so forth. I did a backup of the Dashboard module to see what was in there. The only one I have even on the backup with data in them are the following three. dimming_characteristic_curve_adjustment_internal_phototransistor dimming_characteristic_curve_adjustment_fpk_indicator_lights dimming_characteristic_curve_adjustment_fpk_middle_display_main_field These have the following data sets in them. If there’s something that I can do within those with your expertise I can access them and change data no problem. I did try Android and the results are the same. Seems this Canadian spec R doesn’t have the specific channels.    |
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Post by dv52 (Australia) on May 7, 2022 20:25:43 GMT
hmm..........Post-up a copy of the back-up file (as an attachment ) so I can see how this odd dashboard module has been factory programmed for Canadian cars this is how to digitize the file:  |
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Post by slimer on May 13, 2022 17:15:22 GMT
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Post by dv52 (Australia) on May 13, 2022 21:13:05 GMT
yep- the channels are missing from your dashboard module!!
I'm totally guessing, but the data for the digital dashboard comes from the fiber-optics facility that is connected to the MIB (it's called "MOST"). Maybe the missing channels are in the MIB module on your car?
Perhaps try your search in the hex 5F module - again, I'm guessing!
Don
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Post by slimer on May 19, 2022 14:01:35 GMT
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Post by dv52 (Australia) on May 19, 2022 23:01:11 GMT
ok- so as you already know, nothing in this module either!! I assume that you aware of the screen brightness adjustment in the MENU- like this:
The only remaining suggestion that I have is to play with the photo-transistor channels in the dashboard module. But be aware that altering these values changes the illumination of almost every lamp on the dashboard (including the MIB screen) So, this process is the same as I described in my first response - but in this case, the target channels are the photo-transistor channels. The procedure is like this: - Select the dashboard module @ address hex17
- Select Adaptation
- Enter "phototransistor" into the search box - select the 5 x "X" channels like this:
- dimming_characteristic_curve_adjustment_internal_phototransistor-X1 > 00 00
- dimming_characteristic_curve_adjustment_internal_phototransistor-X2 > 00 32
- dimming_characteristic_curve_adjustment_internal_phototransistor-X3 > 00 64
- dimming_characteristic_curve_adjustment_internal_phototransistor-X4 > 00 C8
- dimming_characteristic_curve_adjustment_internal_phototransistor-X5 > 01 F4
These channels define set-points for the illumination level of the dashboard (in general) at different daylight levels in the cabin.
I've shown the default values from a local mk7 Golf in my list above, but these vary with country of sale -so your factory values might be different
- Change the value of these channels to suit your likes using these principles:
- "X" number: the lower the "X" number, the less the cabin daylight level that the channel controls - so X1 controls general dashboard illumination in the darkest cabin conditions and X5 controls illumination when the cabin is brightest.
- Setting: The value for each channel establishes the illumination level set-point - it does not denote the actual illumination level. The lower the value, the lower the illumination level set-point and therefore the higher the brightness for the corresponding "phototransistor-Y" value.
- Caution 1: I suggest that the factory value of X1 is NOT changed because these values result in the clock illumination switching off during dusk conditions - this provides a visual prompt to the driver to turn-on the headlights. This is a safety feature that is worthwhile keeping.
- Caution 2: Don't be too aggressive in selecting new values! It's very easy to flood the dashboard with too much light - which results in a washed-out effect with too little contrast.
- Caution 3: Remember that the dashboard illumination level changes with cabin illumination- so each of the new channel settings will have a different effect at different ambient light levels. After making changes - evaluate the new lighting effect with different cabin illumination (maybe shine a torch into the photo-transistor)
- Caution 4: Take note-of (meaning "write-down") the default factory values for the 5 x adaptation channels BEFORE making changes; you may need to revert to the original values if necessary
- At some point in the process, OBD11 will ask for a security code - use 47115
Maybe start with these values: - X1 > 00 00
- X2 > 00 0A
- X3 > 00 14
- X4 > 00 28
- X5 > 00 64
If the lighting effect is not to your liking, modify using the principles described above.
Don
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Post by slimer on May 22, 2022 20:06:13 GMT
Hi Don,
Went in and tried to adjust those settings and unfortunately I didn’t do a single thing. No changes across the spectrum from what I can tell. I tried adjusting X5 but nothing seems to respond with just numbers. What are some other values that are higher than I can try? Seems some of them have letters with them too, for example 1A or 12F just for examples.
Also where is the photosensor in the digital cockpit display on the 7.5?
Thanks
Max
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Post by dv52 (Australia) on May 22, 2022 21:05:35 GMT
We have been discussing this tweak for a long time - I'm really not sure what you mean by your observations. However, I can answer your 2 x specific questions:
The reason why there are both numbers and letters is because these channels use a system of arithmetic called "hexadecimal" (hex) - it's a system of counting that is based on 16 (rather than the normal base 10 arithmetic). In the normal decimal (base 10) system, counting uses the numbers 0, 1, 2..............9.
In hex, counting also uses the same numbers 0, 1, 2.....9 - but it continues with 6 x alphabetic characters A, B, C....F. This means that one digit in hex can denote up to 16 x different values. Hence it is a more efficient numbering system when applied to computer based arithmetic. Plus, base 16 arithmetic is a natural derivative of base 2 counting (because 16 = 2 to the power 4). This means that hex is also easily translatable to the base 2 numbering system called "Binary"- which is the fundamental language used by computers (i.e. simple, 2 x status - ON/OFF logic) If you are going to persevere with this tweak, I suggest that you google "hexadecimal" to find-out how it works!
The physical location of the photo-transistor in a digital instrument cluster on a MQB platform car is as shown below:
Don
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Post by slimer on May 29, 2022 1:16:48 GMT
Hi Don!
Good news and bad news!
1. FOUND the problem and adjusted it. I found a buddy who gave me his code for the dashboard and bingo adjusted the characteristic curve adjustment middle display main field and the cockpit instantly brightened 200%, so that’s good.
2. The center infotainment has not brightened at all, so that’s the next mystery I want to attempt to fix. What’s the security code for 5F adjustments? I assume that’s where I need to tackle the MIB2 settings cause in the car it’s set to “very high” for screen brightness and is only half the brightness of the digital cockpit. So that’s now the next fun puzzle to figure out. Any advice? Things to try?
Thanks
Max
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Post by dv52 (Australia) on May 29, 2022 21:44:29 GMT
20103 is the hex5F security code
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Post by slimer on May 30, 2022 12:53:44 GMT
Any ideas for the infotainment screen brightness adjustment?
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Post by dv52 (Australia) on May 30, 2022 23:31:37 GMT
slimer : Total guess, but your hex5F module has the following channels
Dimming_Ambient_Illumination_Information_Control_Unit
X1
0
Y1
0
X2
50
Y2
50
X3
100
Y3
100
Dimming_Ambient_Illumination_Operating_and_Display_Unit
X1
0
Y1
0
X2
50
Y2
50
X3
100
Y3
100
Again, this is an untested hunch - but the structure and descriptors for these channels suggest (to me. at least) a similar set-up to the dimming_characteristic_curve channels in the hex17 module - I think!!
Maybe experiment with the values - perhaps start with X2=100 & Y2=100 on the Display unit channels first?
Don
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Post by rbreeze on Mar 6, 2023 19:03:18 GMT
Hi Max, I read your May 28, 2022 post (included below) with a lot of interest, because I would like to increase the brightness of the Digital Cockpit Pro display in my 2022 Tiguan Highline R-Line. Can you please advise/post the code for the dashboard you got from your buddy? Knowing that code I can also adjust the "characteristic_curve_adjustment_middle_display_main_field" on my vehicle. Thanks in advance. Richard Hi Don! Good news and bad news! 1. FOUND the problem and adjusted it. I found a buddy who gave me his code for the dashboard and bingo adjusted the characteristic curve adjustment middle display main field and the cockpit instantly brightened 200%, so that’s good. 2. The center infotainment has not brightened at all, so that’s the next mystery I want to attempt to fix. What’s the security code for 5F adjustments? I assume that’s where I need to tackle the MIB2 settings cause in the car it’s set to “very high” for screen brightness and is only half the brightness of the digital cockpit. So that’s now the next fun puzzle to figure out. Any advice? Things to try? Thanks Max |
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