Fitted Golf R Lights But Having One Issue*Now Sorted

[Ess_Three]

Pete's R:
48180A3A9825F10044080080240008E443550088736D8D60E48000240000
My GTI:
40180A3ED827F1C0448800846400892443551588736D8D60648000200000
   
Since VCDS doesn't tell you what Byte does what...they are too different to grab any best guess data from.

Pete's Byte 18 data is 00...mine was...and is now 15. With 00 set on my GTI, I had a bulb warning up.
Too many of the other Bytes differ though.

For GTIs with factory Xenons and LED rears, Byte 18 set to 15 seems to work.

[mike.]

Thanks for trying it Glen,

So it looks like 15 works for both our cars, Halogen and Xenon

The 00 seems to leave the settings as they were, so looks like the factory sets the byte up and the controller stores the value somewhere else, possibly NVRAM, and then they set the byte back to 00.

SteveP checked a car earlier this week with factory LED's and it was 00 as well.

[KennyGTI]

Hex 15   Binary 0001 0101 worked for me! Got my sidelights back 

[Ess_Three]

Hex 15   Binary 0001 0101 worked for me! Got my sidelights back 

Good stuff Kenny!

Maybe we need to cut the bones out of this post and get it made a sticky?
Or at least get Steve to add it to his instructions?

[mike.]

Great to see everyone sorted 

I had PM'd SteveP before after 15 had worked for me and I think he was going to update his install instructions.

I wonder have we all got the same version of CEC and is that why it works, I think mine is version 'C' but the new cars are version 'H'

[Ess_Three]

Great to see everyone sorted 

I had PM'd SteveP before after 15 had worked for me and I think he was going to update his install instructions.

I wonder have we all got the same version of CEC and is that why it works, I think mine is version 'C' but the new cars are version 'H'

Mine is a 'D': 1K0 937 087 D
Same as P3eps...not surprising as our cars were delivered within days of each other.

[SteveP]

Hex 15   Binary 0001 0101 worked for me! Got my sidelights back 

Good stuff Kenny!

Maybe we need to cut the bones out of this post and get it made a sticky?
Or at least get Steve to add it to his instructions?

Yep I will update it and also link it back to this thread 

[Ozram]

Just checked again...everything bar the 'Auto' function when the light drops....I'll check that later on...but it's never not worked before so I expect it'll be OK.

Byte 18 set to '15' works for me for factory Xenons and R LED rears.

All lights work as they should, parking lights do work, brake lights, both inner and outer rear LEDs on with sidelights/on, Xenons as they should be, sidelights as they should be, indicators all fine, foglight & reversing light both working fine.

I'm sure I tried '15' when I first fitted the rear LEDs...but obviously not.

It appears mine is the opposite of what's suggested here for 15/44.

VW360 GTI Halogen "VW360 RdW TFL_0_LED + LED_SBBR"    Hex 04   Binary 0000 0100
Halogen, Rest Of World, LED DRLs, LED Rears

VW360 GTI Halogen "VW360 RdW TFL_0 +LED SBBR"       Hex 15   Binary 0001 0101
Halogen, Rest Of World, Bulb DRLs, LED Rears

VW360 XENON "VW360 RdW XE LED_SBBR"           Hex 44   Binary 0100 0100
Rest Of World, Xenon, LED Rears

Hey mate, Are you sorted with this? I got my LED's direct from a German VW dealer and the coding instructions that came with it suggested that >week 45 2009 Xenon headlight coding should be byte 18 to 43. I have not verified it works. My mates GTI 2010 with Halogens has been recoded from 04 to 15 as his DRLs were not functioning and sidelights very dim. He followed the VW dealers coding and all is fine.

Maybe worth a try?

[Ess_Three]

Hey mate, Are you sorted with this? I got my LED's direct from a German VW dealer and the coding instructions that came with it suggested that >week 45 2009 Xenon headlight coding should be byte 18 to 43. I have not verified it works. My mates GTI 2010 with Halogens has been recoded from 04 to 15 as his DRLs were not functioning and sidelights very dim. He followed the VW dealers coding and all is fine.

Maybe worth a try?

Yes, all sorted.
Byte 18 > 15 worked for me, despite having factory Xenons.