Retrofit halogen taillight to led prefacelift

[Btpro]

Hello guys

Sorry for my bad english.

I have an Audi A3 2013 3 doors with halogen taillights.

I bought led taillights (prefacelift).

Do i need a coding?

Can i have pinout for connect taillights.

Thanks a lot

 

[Btpro]

Nobody ?

 

[m rol]

You need coding to let the car know you have led instead off halogen.
Its in de adoptations of the bcm.
(reverse brake and fog lights still are halogen)
You need 4 turnsignal changes (4 wires from bcm) and rear driving light changes.(not sure if 2 or 4 changes)

To get you started; the turnsignals look like this:

Leuchte16BLK SLB35BLK SL KC9
Lasttyp 16 37 - allgemeine LED bis 12W
Lichtfunktion A 16 Blinken links Hellphase

Leuchte17TFL R BLK SRB3TFL R BLK SR KC3
Lasttyp 17 37 - allgemeine LED bis 12W
Lichtfunktion A 17 Blinken rechts Hellphase

Leuchte18BLK HLA60
Lasttyp 18 38 - LED Blinkleuchten
Lichtfunktion A 18 Blinken links Hellphase

Leuchte19BLK HRC31
Lasttyp 19 38 - LED Blinkleuchten
Lichtfunktion A 19 Blinken rechts Hellphase

Don't change your numbers, the numbers on your car might be different. Just change the lasttype..

 

[Btpro]

Thanks a lot m rol.

But i see connector are not same.

Do i need to buy an adapter ?

 

[m rol]

To make it a little more complicated , the halogen bulbs use the same bulb for brake and normal lights..

Also the inner lights dont have turnsignal wires...

The outer lights have:
1 turn signal
2 Brake / normal lghts
3 GND
For retrofit led lights your missing a seperate Normal light wire

The inner lights have
1 reverse
2 Fog / tailight combo
3 taillight
4 GND
For retrofit led lights your missing turnsignal wire.

On both sides your missing 2 wires. 1 normal taillight and 1 turnsignal.
Also you need to remove the normal lights from the brakelight wire (in BCM)
Next remove the taillight from the foglight combo (in bcm)
Run 2 wires from both outer to both inner cluster.
1 wire from outer turnsignal to inner
1 wire from inner taillight to outer taillight.

 

[m rol]

Drop me a pm with email and ill give you the wiring scematics

 

[CORTEZ72]

To make it a little more complicated , the halogen bulbs use the same bulb for brake and normal lights..

Also the inner lights dont have turnsignal wires...

The outer lights have:
1 turn signal
2 Brake / normal lghts
3 GND
For retrofit led lights your missing a seperate Normal light wire

The inner lights have
1 reverse
2 Fog / tailight combo
3 taillight
4 GND
For retrofit led lights your missing turnsignal wire.

On both sides your missing 2 wires. 1 normal taillight and 1 turnsignal.
Also you need to remove the normal lights from the brakelight wire (in BCM)
Next remove the taillight from the foglight combo (in bcm)
Run 2 wires from both outer to both inner cluster.
1 wire from outer turnsignal to inner
1 wire from inner taillight to outer taillight.

Hello,
I m in the same situation than Btpro, I have an A3 Sb FL 2017, i already purchase dynamic tail light and i m looking about information to make the retrofit myself without any error without any module.

Can you provide me diagram for the halogen FL SB Tailight ? also diagram of the bcm of an facelift with led/ and halogen like that i can understand what change exactly?
If someone can share some pic's info, everything can be helpful for me.

thanks a lot