DB11 query - reading lamps

DB11 query - reading lamps

Author
Discussion

AndM

Original Poster:

490 posts

210 months

Sunday 8th December 2024
quotequote all
I'm the very happy recent owner of a DB11 and loving it. Have just one query - the two reading lamps in the front headlining don't seem to work. The manual says to touch the bezel but this does nothing. They also don't come on at any time when doors etc are opened. Not a big issue but means car is dark when you get into it at night and a little extra light would be welcome.

Very minor query but curious to know if mine are faulty or if I'm missing some obvious setting or such like?

skhannes

258 posts

27 months

Monday 9th December 2024
quotequote all
Hi AndM

Mine do come on when the door is opened, even without the FOB present. After the door is closed they remain on for several seconds. I have tried these in the past (not this time) while in the car driving and they do come on by touching the bezel.

I took a brief look at the "system settings" and their is a menu item titled Ambient light Brightness which suggests the interior lights can be set. Also, in the manual regarding those lights, it says the lights will come on when the door is opened unless set to off.

Hope this helps.

AndM

Original Poster:

490 posts

210 months

Monday 9th December 2024
quotequote all
Hey, and thanks for coming back. Unfortunately I had tried that before (and tried again just now.) Doesn't seem to have worked though I'll wait to see when it gets darker and the lights come on if that makes any difference.

Calinours

1,409 posts

65 months

Monday 9th December 2024
quotequote all
It might seem obvious but is anything else not working? These lights probably wont have a dedicated fuse.

AndM

Original Poster:

490 posts

210 months

Monday 9th December 2024
quotequote all
I'll do an all round check of the lights in an hour or so when its dark but all seems to be working fine. I can't imagine there would be a fuse specfically for the reading lights either but I'll check in case there are other lights including any for the vanity mirrors.

skhannes

258 posts

27 months

Monday 9th December 2024
quotequote all
Another to try is the small dimmer rotary dial next to the headlight switch. Just push it in to release it, then try maximum brightness.

AndM

Original Poster:

490 posts

210 months

Monday 9th December 2024
quotequote all
Tried the dial too. It works on changing the instrument brightness but nothing at all from the reading lights. Very odd.

Dewi 2

1,657 posts

80 months

Monday 9th December 2024
quotequote all

skhannes said:
I took a brief look at the "system settings" and their is a menu item titled Ambient light Brightness, which suggests the interior lights can be set.

Reading that sparked my thought process.

Am I correct, that the DB11 underlying infotainment system was originally Mercedes ?

If so, then in Mercedes 'speak', Ambient Lighting refers to strips of coloured lights across the dashboard, along the door cards, around the interior door handles and in the front and rear footwells.
A bit of nonsense really, but quite fun, especially at night. I like the setting of bright blue upper (and red lower), which slowly transitions through shades of red, then purple the back to blue again. It says there are 64 different colours.

Do DB11 cars have that type of Ambient Lighting?
If not, perhaps the Menu option is a non-operating item, leftover from the Mercedes menus.

AndM

Original Poster:

490 posts

210 months

Monday 9th December 2024
quotequote all
Dewi 2 said:

skhannes said:
I took a brief look at the "system settings" and their is a menu item titled Ambient light Brightness, which suggests the interior lights can be set.

Reading that sparked my thought process.

Am I correct, that the DB11 underlying infotainment system was originally Mercedes ?

If so, then in Mercedes 'speak', Ambient Lighting refers to strips of coloured lights across the dashboard, along the door cards, around the interior door handles and in the front and rear footwells.
A bit of nonsense really, but quite fun, especially at night. I like the setting of bright blue upper (and red lower), which slowly transitions through shades of red, then purple the back to blue again. It says there are 64 different colours.

Do DB11 cars have that type of Ambient Lighting?
If not, perhaps the Menu option is a non-operating item, leftover from the Mercedes menus.
It is a Mercedes system in the DB11 but its the older system I had in my AMG GTS. Perfectly fine system even if its fairly old. I like the rotary dial. The coloured lights you have are in the newer generation Mercs and my wife has that in her A Class. Its pretty good but the DB11 doesn't have it.

The ambient light setting in the menu seems to be active but its a scale of 1-5. I have it at maximum but doesn't bring my reading lights on (they call them reading lights but they are really the interior lights which come on in most cars when you open the door at night).

Edited by AndM on Monday 9th December 16:50

kabman

45 posts

175 months

Monday 9th December 2024
quotequote all
They are on the same control circuit as the footwell lights. Are any of those working when you open the door? There's no separate fuse - power comes from the DRVU module.

AndM

Original Poster:

490 posts

210 months

Monday 9th December 2024
quotequote all
yes - footwell lights do come on. On both sides.

TarquinMX5

2,249 posts

95 months

Monday 9th December 2024
quotequote all
Does it make any difference if the ignition is on or off?

skhannes

258 posts

27 months

Monday 9th December 2024
quotequote all
TarquinMX5 said:
Does it make any difference if the ignition is on or off?
The lights in my DB11 come on when I open the door, even if I do not have the FOB. No ignition.

AndM

Original Poster:

490 posts

210 months

Monday 9th December 2024
quotequote all
TarquinMX5 said:
Does it make any difference if the ignition is on or off?
Nope!

They don't come on at all.

kabman

45 posts

175 months

Tuesday 10th December 2024
quotequote all
AndM said:
yes - footwell lights do come on. On both sides.
That's good news - it means the front Body Control Module is sending a signal when you open the door. What about the light in the rear? If that's not working either, remove one light and check for power on pin 1 and ground on pin 4 (2 and 3 are the control pins).

AndM

Original Poster:

490 posts

210 months

Tuesday 10th December 2024
quotequote all
The back interior light does come on. So the footwell lights work and rear works. I'll see if these are bulb or led units. Anyone know if they simply unscrew?

Edited by AndM on Tuesday 10th December 14:21

skhannes

258 posts

27 months

Tuesday 10th December 2024
quotequote all
I was just examining my lights. I pulled off the bezel on the drivers side. It just pops off very easily and can be pried with a fingernail. The light itself appears to be LED (not a bulb). I didn't try to remove it.

A thought came to me - the entire assembly which includes the rear view mirror and sensors would probably be removed if a windshield replacement was done. Perhaps if that were the case, the harness to those lights were forgotten and left unconnected.

One other question - there is a very small micro light that is located in the center between the map lights and visible just in front of the mirror. Its purpose is to cast a mood light on the console/center glove box. It too lights up when the map lights come on when the door is opened. Another light to check but probably fed from the map lights.

AndM

Original Poster:

490 posts

210 months

Tuesday 10th December 2024
quotequote all
Took a look there. The little 'micro' light does work. Popped off the bezels and will maybe take a closer look tomorrow in daylight. Could be a harness alright behind the headliner.

skhannes

258 posts

27 months

Thursday 12th December 2024
quotequote all
I was perusing Ebay and found a couple of these headliner pieces for sale in the US. Both included pics of the underside and thought they might be helpful to examine without removing yours.

It appears, possibly, in the top pic the main harness has been cut.





Edited by skhannes on Thursday 12th December 11:02


Edited by skhannes on Thursday 12th December 11:03

AndM

Original Poster:

490 posts

210 months

Thursday 12th December 2024
quotequote all
Thanks for this! Very useful indeed. I'll try and get at this soon when work and daylight permit. See if any of the looms are detached. The fact that both lights (and only these lights) are out might suggest an issue with one of the looms further up the top picture.

Has anyone removed this front roof trim piece? I can see two obvious connectors holding it to the roof. The piece sit on top of the main roof liner so presumably need not affect that. However it tucks underneath the door pillar liners on both sides. Is it possible to remove without involving an the pillar liners? The piece looks to be fibreglass so presumably is fairly flexible.

Edited by AndM on Thursday 12th December 16:25