Post Reply 
 
Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
The Case of the "Self Determining" interior lighting brightness ...
WorldTraveler
 

Posts: 239
Joined: Oct 2011
Location: Newcastle Upn Tyne/The World
Post: #1
The Case of the "Self Determining" interior lighting brightness ...

Well, 2 weeks in and have 1000miles under the hood .... whilst driving this evening I noticed that the interior lighting (Clocks/NAV Display etc.) seems to have a mind of its own, drops to almost nothing to full by itself, stays full for about 15min, then drops back to almost nothing.

Now, the headlights were on Auto and were ON throughout the episode, double checked this as I am aware of the auto headlight feature, I then set the headlights to ON (manual setting) and the same "effect" is observed.

Anyone else out there seeing theis somewhat distracting feature ?

Delivered 31st March 2012
Pure, 5 Door, TD4, Manual, Firenze Red, Tech Pack, Front Fogs, Xenon, Pano Roof

Track Consumption Using The Site Below
[Image: 117709.png]
(This post was last modified: 13-04-2012 08:12am by cjfp.)
12-04-2012 08:32pm
Find all posts by this user Quote this message in a reply
cjfp
 

Posts: 2,917
Joined: Nov 2010
Location: Hampshire
Post: #2
RE: The Case of the "Self Determining" interior lighting brightness ...

http://babyrr.com/forum/Thread-dashboard...ht=dimming

http://babyrr.com/forum/Thread-Paradise-...ht=dimming

No-one, including LR, has yet managed to provide a full and proper explanation.

Pure 3dr SD4 Tech Man ; Firenze Red ; 19" Style 3 ; Pano ; Ebony / Ivory Int ; Auto dim rear view ; 2 seats ; Park Aid - Rear cam ; Ext. folding mirrors ; Adap Xenon ; Fogs ; Mud Flaps ; Side Steps - Rec'd 28/12/11 - Sadly going 6/6/14 - Gone, now running BMW X6
12-04-2012 08:35pm
Find all posts by this user Quote this message in a reply
Donny Dog
 

Posts: 773
Joined: Feb 2012
Location: United Kingdom
Post: #3
RE: The Case of the "Self Determining" interior lighting brightness ...

(12-04-2012 08:35pm)cjfp Wrote:  No-one, including LR, has yet managed to provide a full and proper explanation.

I thought this was generally being attributed to over-sensitivity/hysteresis around twilight(?).
12-04-2012 08:43pm
Find all posts by this user Quote this message in a reply
cjfp
 

Posts: 2,917
Joined: Nov 2010
Location: Hampshire
Post: #4
RE: The Case of the "Self Determining" interior lighting brightness ...

Well maybe, but then why don't the auto lights turn on/off too?, it appears just to bevte dash lights that adjust.

Are we saying there are two systems? One that turns on the auo lights and one adjusting the dash level?

Pure 3dr SD4 Tech Man ; Firenze Red ; 19" Style 3 ; Pano ; Ebony / Ivory Int ; Auto dim rear view ; 2 seats ; Park Aid - Rear cam ; Ext. folding mirrors ; Adap Xenon ; Fogs ; Mud Flaps ; Side Steps - Rec'd 28/12/11 - Sadly going 6/6/14 - Gone, now running BMW X6
12-04-2012 08:50pm
Find all posts by this user Quote this message in a reply
Bjorntje_be
 

Posts: 70
Joined: Nov 2011
Location: Waasmunster Belgium
Post: #5
RE: The Case of the "Self Determining" interior lighting brightness ...

My alfa does the same, the interior leds lighten up brighter when outside light is brighter and dim when e.g. in tunnels. The headlights stay on or off, just the interior lightning is adjusted. Isn't it something like that?

ED4 5dr Pure Fuji white with tech pack/fog lights/privacy glass/tow bar ; order 24/02 / expected summer 2012 / delivered 18 sept 2012
12-04-2012 10:31pm
Find all posts by this user Quote this message in a reply
Donny Dog
 

Posts: 773
Joined: Feb 2012
Location: United Kingdom
Post: #6
RE: The Case of the "Self Determining" interior lighting brightness ...

(12-04-2012 08:50pm)cjfp Wrote:  Well maybe, but then why don't the auto lights turn on/off too?, it appears just to bevte dash lights that adjust.

Are we saying there are two systems? One that turns on the auo lights and one adjusting the dash level?

There definitely are two systems (same as my other car, as it happens) as they react to the light at different times, so, for example, the automatic headlights come on at a slightly different time to the main display changing background colour to the night setting. This becomes really obvious when you enter a tunnel. (I'd guess that the interior sensor is at the top of the windscreen, and the exterior one is in the lights themselves - but that's all it is, a guess). That being the case, the hysteresis problem might only affect the interior sensor.
12-04-2012 10:41pm
Find all posts by this user Quote this message in a reply
mark_n
 

Posts: 1,720
Joined: Jul 2011
Location: London
Post: #7
RE: The Case of the "Self Determining" interior lighting brightness ...

I'm away from the car but I would have thought that the sensor to switch on the headlights is in the windscreen looking skyward, whence comes our daylight. The sensor for the dash should be in the instruments themselves monitoring incident light on the face of them and adjusting the intensity to aid readability. Go into a tunnel and they dim, come out and they brighten.

As for the auto dip sensor, that's looking ahead from the rear view mirror and I assume it will have a narrow angle of view (but not so narrow that normal adjustment of the mirror will throw it off) to focus just on the road ahead. Quite tough to make it foolproof, I would have thought.

Mark

Evoque was great, now in an RRS SVR
13-04-2012 07:21am
Find all posts by this user Quote this message in a reply
cjfp
 

Posts: 2,917
Joined: Nov 2010
Location: Hampshire
Post: #8
RE: The Case of the "Self Determining" interior lighting brightness ...

I think mark is correct - and gets extra kudos for use of the word 'whence' Laughing

Pure 3dr SD4 Tech Man ; Firenze Red ; 19" Style 3 ; Pano ; Ebony / Ivory Int ; Auto dim rear view ; 2 seats ; Park Aid - Rear cam ; Ext. folding mirrors ; Adap Xenon ; Fogs ; Mud Flaps ; Side Steps - Rec'd 28/12/11 - Sadly going 6/6/14 - Gone, now running BMW X6
13-04-2012 08:13am
Find all posts by this user Quote this message in a reply
XFullFatTim
Bat wielding forum enforcer

Posts: 9,295
Joined: Oct 2010
Location: Somewhere between here and there.
Post: #9
RE: The Case of the "Self Determining" interior lighting brightness ...

The sensor for the auto dipping rear view mirror is the tiny "black" spot at the top of the mirror It is in fact a clear section of the mirror.
Pete Bell might be able to let us know where the headlight-on and instrument binnacle illumination sensors are as he seems to have access to that sort of info.

A Pangea Green New Defender 110 First Edition is now sitting on my drive alongside British Racing Green Electric Mini Cooper SE Level 3. After 21 years in my hands my TDI300 90 was handed on to the next custodian on 15 July 2022.
(This post was last modified: 13-04-2012 09:16am by XFullFatTim.)
13-04-2012 09:14am
Find all posts by this user Quote this message in a reply
mark_n
 

Posts: 1,720
Joined: Jul 2011
Location: London
Post: #10
RE: The Case of the "Self Determining" interior lighting brightness ...

Ah, are we talking about the mirror which responds to lights behind you and hitch darkens (in which case I agree with Tim) or the function to automatically dip headlights when a car is coming towards you, in which case the sensor has to face forwards?

Mark

Evoque was great, now in an RRS SVR
13-04-2012 09:18am
Find all posts by this user Quote this message in a reply
Post Reply 


Forum Jump:


User(s) browsing this thread: 2 Guest(s)
babyRR is an independent web site and not affiliated with Land Rover