Hello,
 

Has anybody tried retrofitting the rear tailgate  LEDS, which are optional in the boot section?
 

I just wonder it there is any cabling loom that needs adding or simply replacing the tailgate lights?
 

Thanks 

Can this be activated by OBD 11?

I’m planning on buying all four taillights  for upgrading to scrolling indicators and the lights on the boot which I don’t have.

 

do you have information on the wiring? Are they different from the standard taillights or plug and play?

Okay, I bought the 4 rear light units from a salvage car.

 

I removed the rear right lamp unit on the boot and noticed that it’s a dummy.  (Dutch car) reverse light is on the left.
 

Didn’t have time yet to remove all plastics but my guess is I will need the wiring harness as well to get this done.

 

to be continued!

Any update on this? Thanks

Aswell as 4 replacement lights assemblies, there's wiring needed between the lights and the body control module.

 

There's then software changes to allow them to function 

hi

i retrofitted rear full Led lights Octavia mk4 2020 Hatch RHD

couldn't find complete guide + no harness on market + i am beginner so maybe some steps are not correct

you need High BCM module

parts

Rear Light Left Inner TOP LED 5E6 945 307 A

Rear Light Right Inner TOP LED 5E6 945 308 C RHD

Rear Light Right Outer TOP LED 5E3 945 208 A

Rear Light Left Outer TOP LED 5E3 945 207 A

Flat Contact Housing, 6-pin 8W0 971 636 D x2

Flat Contact Housing, 6-pin 4H0 973 713 x2

T73a/71 T73a/60/ T73c/27 T73c/8 are already there from basic LED

so I laid T73a/65 T73c/10 T73a/25

connected according to the diagram

than you need change dataset in BCM subsystem address 7204

DA_009_7204_5EN_A002_XXXSBBRBASIS_8VG

to

DA_009_7204_5EN_A002_XXXSBBR8VQXX_8VQLED

in VCtool i found backup car which support rear full LED Hatchback,RHD even same dataset number than i requested his stock data for BCM i got merged dataset

ticked 7204 and ran flash after flash start BCM adaptation and all 4 lights to installed was getting error when lights was switched off

then all lights started working but there was still error with reverse and fog lights had to do some coding with old basic LED BCM pins 72+64

after that no error but probably there is still something wrong because i have 2 fog lights should be only 1 on right side will sort later

Edited 17 hours ago17 hr by milloo24

Hello @milloo24 ,

Congratulations on your work with the retrofit!

I have couple question regarding the actual behavior with both rear fog lamps steady on:

Can you share a backup of adaptation on BCM unit?

Is your car RHD?

I'm working on finding out how to enable both on my car, which is a LHD vehicle. Based on the investigation I did so far it seems that this is a wiring harness tweak.

Can you confirm you have connected both: T6y/5 and T6x/5 (NSL signal) to BCM: T73a/72?

Thank you

is RHD hatchback looks like you talking about basic LED there is T73a/72 controling fog light (NSL) I swaped basic LED to full LED and there is T73a/25 LIN controling fog and reverse light how you can see on diagram T73a/72 is not connected

OK. So to enable both fog lamps only a coding/adaptation OR dataset change is required. I'm trying to figure them out. For sure there is a small difference between LHD and RHD cars, and merging them will results in both fog lamps on.

Can you share a BCM backup of your current state?

Thank you

there is difference LHD are using right inner light part number 5E6 945 308 A and RHD 5E6 945 308 C and to make sure do you have Full Led lights (Matrix,Top Led)

Correct! Feeding all these information to an AI agent, he conducted that for a LHD car I'll need a top LED assembly from a RHD car in order to have both fog lamps working, since the actual led and power supply are missing, same principle apply for an RHD car.

In your case you have made a mix of TOP led assembly units from both LHD and RHD cars, what I'm now looking for.

Thanks @milloo24

Edited 1 hour ago1 hr by djmartzian

left inner light LHD and RHD use same part number 5E6 945 307 A (hatchback) right inner light 5E6 945 308 A (LHD) 5E6 945 308 C (RHD) outer lights are same for LHD,RHD even should be same with estate

Thx for the info @milloo24

To clarify, my car has rear top LED from factory. I just need to find an inner lamp assembly 5E6 945 308C(RHD) at good price to complete "both fog lamps" tiny retrofit.