Retro fit auto lights

[NigelPatrick]

@jezyg I just ordered one off eBay but didn't read the thread fully so I am unsure if this needs coding... I have no idea how to do coding so I feel like I just wasted £25 lol.

 

[RavH]

Nope it’s still not working, autolight is working fine, need the sensitivity adjusting,

I need to double check the settings on carista first

Let me know how you get on with Carista settings if they work with this switch please

 

[RavH]

After a bit of experimenting around yesterday I finally found a location for the sensor that restricts enough of the available light to make it actuate the headlights at the right level of light outside. It's still very discrete, especially when the door is closed and a bonus is that there is no routing of the wire under the windscreen pillar trim to mess around with.

Like previous posters I lost two of the steel spring clips that attach to the plastic dash end panel but managed to fish them out with no trouble.

While driving around yesterday the headlights were coming on for me at sensible outside light levels so I'll see how things go over the next week and decide if any further positioning is required.

One additional bonus (IMHO) is that the dashboard illumination is now permanently on, with the switch in Auto. A downside is that the sat nav display is now in dark mode however I've changed the setting so it's permanently in daytime mode, day and night.

One other thing I've noticed now is that the illuminated headlight symbol does not appear when the headlights are on.

How's the headlight sensor holding up until now? Have you still kept it in the same position still?

 

[Calum98]

So I received my Auto Headlight Switch from eBay 2 weeks after ordering which I'm quite happy about. Got it all plugged in and the actual auto headlight function works fine. Headlights come on about 2 seconds after entering the dark and then go back to DRLs when back in the light. However I can't for the life of me seem to get the Coming/ Leaving Home function to work. I have followed some online instructions (Auto - 0 - Auto etc.) and nothing seems to work. Does anyone who has the same switch have any straight forward way of explaining how to get this to work? Any help would be appreciated!

Did you ever manage to get that sorted? Thinking of doing this mod as I don't have access to VCDs to do the other method.
It's mainly only for the coming/leaving home lights I would be doing it aswell so would like to know before buying, cheers.

 

[davidstarkey11]

Did you ever manage to get that sorted? Thinking of doing this mod as I don't have access to VCDs to do the other method.
It's mainly only for the coming/leaving home lights I would be doing it aswell so would like to know before buying, cheers.

No I never managed to figure out the coming/ leaving home function to be honest. Gave up trying after a while, never got any decent instructions from the seller or online. It works fine in terms of auto lights when it gets dark/ driving into tunnels etc. I still have to flick the light stalk to activate coming home.

 

[Priteshmakanjee]

Got another auto light switch and got the RLHS for the windscreen and I have seen couple of guys with Vcds and everything works but CH/LH lights still not working..
I think it’s got to do with settings or there is a module somewhere so right now I’ve given up,

 

[Priteshmakanjee]

I have the following
Auto light switch: 5G0941431AF coded in myself with a cheap car scanner tool and obd, just tells the car you have auto light switch installed

 

[Calum98]

I have the following
Auto light switch: 5G0941431AF coded in myself with a cheap car scanner tool and obd, just tells the car you have auto light switch installed

Was it carista?

 

[Priteshmakanjee]

Was it carista?

it’s a OBD2 adaptor and app called car scanner ELM obd2,

 

[Calum98]

I managed to get auto lights and leaving/coming home lights. I bought this switch n sensor

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After putting it in it started working straight away, but to get the coming home lights on I had to use carista. The switch itself is pretty nice looking aswell.

 

[Tdk80]

So. I bought a switch with a sensor built into it. Coming home etc worked no problems. I thought where the sensor was may have been causing the lights to come on most of the time as the dash was lit up but just drls on. So I bought a switch with a separate sensor. Auto lights work great but no coming home lights etc.
Im clueless what to do now. The switch with sensor was for a mk7 golf. The one with a separate sensor a bit older could that have something to do with it?

 

[Fam991]

Bought the same switch from amazon for £30 with sensor build in and very easy installation. Everything works apart from fog lights.

 

[Tdk80]

Mine work no problem

 

[rrawlings]

Anyone used car scanner pro app to code auto lights? I have the right rain sensor but want to buy an auto light switch and code it just thought I’d ask if it’s straight forward. Tried a search but not found much other than some saying they have done it

 

[Giuseppe Busso]

Anyone used car scanner pro app to code auto lights? I have the right rain sensor but want to buy an auto light switch and code it just thought I’d ask if it’s straight forward. Tried a search but not found much other than some saying they have done it

I have the car scanner pro app on iPhone. I think you cannot do that through this app. You need VCDS/OBD11.

 

[P4ndem1c]

Hey all! I believe I already got the sensor on the windshield (some sort of sensor right below the rear view mirror), but got no idea what is it for ? No auto wipers are on the buttons, not autolight switch, car got no smart cruise control either. If I would to buy a light switch with autolight option, do I require any coding at all if that is the right sensor there ?

 

[stevenboot]

Hey all! I believe I already got the sensor on the windshield (some sort of sensor right below the rear view mirror), but got no idea what is it for ? No auto wipers are on the buttons, not autolight switch, car got no smart cruise control either. If I would to buy a light switch with autolight option, do I require any coding at all if that is the right sensor there ?

I had a sensor already there but it was only for humidity or something.... You'll need the sensor, the switch and a bit of coding, either VCDS or one of the dongle jobbers......


Sent from my Pixel 6 using Tapatalk

 

[P4ndem1c]

I had a sensor already there but it was only for humidity or something.... You'll need the sensor, the switch and a bit of coding, either VCDS or one of the dongle jobbers......


Sent from my Pixel 6 using Tapatalk

Im just not exactly sure of what is it for. It is facing the windshield to the outside but haven't got around to check what would the actual lights sensor location would be and looks of it

 

[stevenboot]

I think it's a humidity sensor for the air conditioning, I swapped it over years back following this thread: https://www.google.com/search?q=sea...ile&ie=UTF-8#scso=_vEcWY5SqBo_4gQaW55WwCg_3:0

Sent from my Pixel 6 using Tapatalk

 

[P4ndem1c]

I think it's a humidity sensor for the air conditioning, I swapped it over years back following this thread: https://www.google.com/search?q=sea...ile&ie=UTF-8#scso=_vEcWY5SqBo_4gQaW55WwCg_3:0

Sent from my Pixel 6 using Tapatalk

This is the sensor i got, any ideas what it is ? Most likely humidity, but why it is facing through the window ?