09 Plate A3 Facelift Coming Home Lights Succesfully Enabled!

A3Kent

A3Kent

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Just got back from having my Coming Home and Leaving Home Lights enabled on my Facelift 2009 A3 by Ash. Was a quick 2 minute job done via VCDS without any cabling etc. We're not sure if it will work the same way with any later models, even the 59 plate might not work. If anyone else has achieved it on a 59/10 plate onwards let us all know.

Appreciate your time this morning Ash, I hope you've got your feet up after the MAJOR mod you were secretly doing yesterday. All to be revealed shortly I believe :icon_thumright:

He has also filled my head with various mod ideas which although is good, it means dipping deep into the wallet!
 
if ash wants to test this coming home feature in my 61 plate S3 he's more than welcome....
 
mjr901 said:
if ash wants to test this coming home feature in my 61 plate S3 he's more than welcome....
Click to expand...

I second that, would be great to have this feature and not too far away from North London.

A3 Kent / Ash what did you enable with VCDS to enable this feature?
 
aky20 said:
I second that, would be great to have this feature and not too far away from North London.

A3 Kent / Ash what did you enable with VCDS to enable this feature?
Click to expand...

Same question as above........ my VCDS cable arrives tmrw so would be grateful to know how to do it.
 
Well there are a few combos of coding tick boxes you can try, but none are guaranteed as in the end of the day it is a hack of a feature that usually only comes with cars that have auto lights.
So in VCDS go to central electrics (09) followed by coding, then long coding helper, in the first byte tick the box that says coming home enabled. If you do not have that option on the very first byte then it may not work for you but you could still fish around and see what 'coming home' coding you have.
As I told Chris before he made his way over to me it is not a guaranteed mod, I have had issues on a 2011 car in the past so try it at your own risk, and always make a note of any changes you make so you can go back and undo the change you have done if anything goes wrong.

Chris it was a pleasure to meet you, hope I didn't put too many evil ideas in your head... Last thing I need is your misses blaming me for your new addiction lol
 
So how does it work without the light sensor? Do they not come on in the day time too?
 
Baffles said:
So how does it work without the light sensor? Do they not come on in the day time too?
Click to expand...

That's the thing; they will come on regardless of what time of day it is lol unless you retro-fit the light sensor etc

I disable mine during the summer months and have now re-enabled them as I leave for work in the dark and come home in the dark :(
 
Baffles said:
So how does it work without the light sensor? Do they not come on in the day time too?
Click to expand...

Regardless of time of day, when you open the drivers door to get out your headlights will come on for 20/30 seconds and then automatically go out regardless of whether you lock it or not.

Then when you return to the car and unlock from your key fob the headlights automatically come on until you open the drivers door.

I would have preferred it if it was just the fog lights that came on as it's less subtle but I believe thats for the later models (10-11 plate etc?). Still, it works for me, espeically with it getting darker earlier in the evenings.

Thanks again Ash
 
Managed to get this working tonight...... literally just had to check the CH/LH boxes in byte 0 in adaptation and all was good. Now appears in the DIS and can turn off CH in there as well by just changing the duration to zero seconds (LH is either on or off).
 
Good stuff. Your's must be a 58 plate?
 
Yeah I think it's only easy on the 58 and 09 plate, maybe the 59 plate too although no ones confirmed this as yet. Anything later and it's not possible we think. The A3's before (8P2) need an additional cable I think.
 
Tinners said:
Certainly is. Was surprised how easy it was to be honest, given the amount of issues people seem to be having.....
Click to expand...

Looks like I might have spoken to soon. With the CH/LH lights enabled via VCDS but turned off in the DIS the headlights are now permanently on when the switch is set to DRL. Sidelight 'icon' on the switch is lit and the interior eqpt lit as it would be if you had the switch on side or headlight. Odd!!

Doing my head in! so have disabled in the interim. Any thoughts?
 
Last edited:
Question to Ash or A3Kent I suppose, but what did Ash change or set in VCDS for this to work if I may ask please?
I've got VCDS so would be keen to know what was done?

Thanks.
 
Ash187 said:
Well there are a few combos of coding tick boxes you can try, but none are guaranteed as in the end of the day it is a hack of a feature that usually only comes with cars that have auto lights.
So in VCDS go to central electrics (09) followed by coding, then long coding helper, in the first byte tick the box that says coming home enabled. If you do not have that option on the very first byte then it may not work for you but you could still fish around and see what 'coming home' coding you have.
As I told Chris before he made his way over to me it is not a guaranteed mod, I have had issues on a 2011 car in the past so try it at your own risk, and always make a note of any changes you make so you can go back and undo the change you have done if anything goes wrong.

Chris it was a pleasure to meet you, hope I didn't put too many evil ideas in your head... Last thing I need is your misses blaming me for your new addiction lol
Click to expand...

does this not say then?
 
A3Kent said:
does this not say then?
Click to expand...

Not really fella, it's very light on detail. Ash must've done more than drive to see you to enable a single checkbox?

It describes one check box in the CE 09 Module which won't do much on it's own. It's also one I've personally enabled in VCDS and tested with unsuccessful results.
Ticking that box is the same as enabling the tick box in your DIS for activating coming home lights, which I've also tried and was also unsuccessful.

Clearly these cars, where ticking this box in the CE module in VCDS enables coming/leaving home lights, have something else present either in their CECM's or have another wiring feature that my car does not, otherwise it would be very simple to enable.

I'm very technically interested to find out what that component(s) or items(s) is/are because it clearly ain't just as simple as that... :think: Ash mentions no further wiring is needed, which means something must already be present that we don't know about, or, we haven't considered (or this would consistently work on other cars including the 2010 CECM A3's).

I'm willing to hack and play to get progress on this... :yum:

Cheers.
 
Well I think, and it'll need Ash to confirm, that all he did was tick a box.

like Ash has said though, he's tried it on other later A3's and its a no go so its obviously something different on later models. How late, we don't know and hoped that others would try on there 59, 10, 60, 11...etc and post back if it works.
 
A3Kent said:
Just got back from having my Coming Home and Leaving Home Lights enabled on my Facelift 2009 A3 by Ash. Was a quick 2 minute job done via VCDS without any cabling etc. We're not sure if it will work the same way with any later models, even the 59 plate might not work. If anyone else has achieved it on a 59/10 plate onwards let us all know.

Appreciate your time this morning Ash, I hope you've got your feet up after the MAJOR mod you were secretly doing yesterday. All to be revealed shortly I believe :icon_thumright:

He has also filled my head with various mod ideas which although is good, it means dipping deep into the wallet!
Click to expand...

Hi Guys
I have successfully enabled this today on my 58 plate A3 SportBack
It was so straight forward - VCDS - clciked a tick box and then clicked do it - job done :yahoo:
What is the difference with later A3's ????
 
Tinners said:
Looks like I might have spoken to soon. With the CH/LH lights enabled via VCDS but turned off in the DIS the headlights are now permanently on when the switch is set to DRL. Sidelight 'icon' on the switch is lit and the interior eqpt lit as it would be if you had the switch on side or headlight. Odd!!

Doing my head in! so have disabled in the interim. Any thoughts?
Click to expand...

Hi Tinners
I tried this too and got exactly the same result I just disabled the LH option and all was well :yahoo:
 
I have a 59 plate and would love to try to get this to work on mine.. if anyone is in the Midlands area that has VCDS and would give it a go for me please let me know...
 
Doesn't look like it is possible to activate these on a 59 plate :( tried it tonight on mine
 
Tinners said:
Looks like I might have spoken to soon. With the CH/LH lights enabled via VCDS but turned off in the DIS the headlights are now permanently on when the switch is set to DRL. Sidelight 'icon' on the switch is lit and the interior eqpt lit as it would be if you had the switch on side or headlight. Odd!!

Doing my head in! so have disabled in the interim. Any thoughts?
Click to expand...

Was there a fix for this? I have had this problem, but even though leaving home has been disabled via VCDS, the headlights still come on when the car is unlocked.
 
I might have misunderstood some or most of this thread but I've activated both Coming Home and Leaving Home functions by ticking boxes in DIS menus on my 2011 S3. Only works at night and with light switch on auto but couldn't have been easier and I'm rubbish at anything technical. So, have I just been lucky or is that normal?
 
Tonka Toy said:
I might have misunderstood some or most of this thread but I've activated both Coming Home and Leaving Home functions by ticking boxes in DIS menus on my 2011 S3. Only works at night and with light switch on auto but couldn't have been easier and I'm rubbish at anything technical. So, have I just been lucky or is that normal?
Click to expand...

Quite normal... Took me 10 minutes to do it on a mates car
 
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Can you use the DRL lights as coming home lights rather than the headlights?
 
Ash187 said:
only on facelift cars, the coming home lights up the DRL and Fogs. can't be coded in on prefacelift cars.
Click to expand...
Yeah it's for my mates facelift A3 sportsback black edition. So when u enable coming home lights it automatically uses the DRL and fogs?
 
It's a 59 plate though. Has anyone managed to enable these yet?
 
I have managed to get the coming home feature work on my 59 but have to use the flash stalk before exiting the car

Any ideas how to get the leaving home to work?
 
Another bump.. anyone with a 2011 car (no auto lights) get this working with just VCDS?

I have got a couple of repair wires but they're for the SDS microphone re jiggle
 
On a 2011 car you need to get the auto lights and wipers retrofitted to activate coming home/leaving home lights.
 
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Oh ****** hell... That's a new windscreen isn't it. Sod that!
 
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Schlaag said:
Oh ****** hell... That's a new windscreen isn't it. Sod that!
Click to expand...
Just reading through this thread and I like the sound of this. I've a 58 plate A3, the facelift type. How do I go about doing this? Is it a DIY job or do I need some special kit?
 
Is this mod poss on a 57 plate? Also just tick box with VCDS?
 
Ash187 said:
on a 58 plate just enable it via coding.
@Schlaag auto lights install isn't that bad, i can install it for you if you want
Click to expand...

My insurance charge £75 excess on windscreens so I guess I could just bite the bullet and get a new one!
 
I have 2011 A3 sportback without auto lights,

Tried to code coming/leaving home lights could not get to code, isit just a case of getting a auto light switch, or much you get the windscreen and the sensor also for this to work?


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