The rear ones are not connected to the CAN BUS. You will need to remove bulb monitoring on the rear side lights and brake lights and also fit a resistor to stop hyperflash.
Project 400k - T5.1 to T6.1 facelift
T6.1 front halogen lamps have only 3 bulbs comparing with 5 bulbs on T6 H7 setup.
I would say it is possible but you wouldn't be able to feed the lamp directly from BCM.
Some wiring modifications plus hardware addition will be required.
If I were you I would go for T6 front with T6 OEM LED headlamps.
T6 LED headlamps are better than T6.1 LED ones. T6 has much better light pattern and more powerful output. I didn't get a chance to measure it but that is mine subjective opinion.
Project 400
T5.1 to T6.1 facelift
Thanks Robert. I have had a few Bmw in past with decent xenon headlights and it really does help at night. I always wanted the T5.1 Xenons retro fitted to my van, but it was around £2000+!!!
I appreciate you sharing your knowledge on bulb and light patterns of the T6/T6.1 LED lights that is a lot more bulbs in the unit!.
I think as the difference in front end parts cost to create a T6 vs T6.1 is so negligible, for time being I’ll stick with the standard T6.1 halogen headlights and maybe upgrade the bulbs (fogs too). I’ll wait to see what aftermarket parts get developed in next 6 months before winter! Busfest hopefully as I live in Malvern! (Wishful thinking tho! ) If anyone has had found a good place for quality upgrade bulbs (plenty on eBay I know) I’d be grateful.
Also regarding the removal of rear bulb monitoring, is that something that a mechanic with a VAGCOM computer can easily do although having said that I imagine some change to wiring when adding the resistor work. I’ll have a search on the forum in case this has been discussed before. Thanks
I retrofitted OEM LED headlamps to my T6 myself and it cost me approx. £1200.
More details here ---> T6 LED headlight retrofit?
For rear LED lights you should probably read these 2 threads:
OEM T6 LED Rear Lights With Sequential LED Indicator "retrofit"
Guys I can't stop doing this. I am still managing to keep myself happy as I keep on coming up with new ideas. Have a look below and judge yourselves.
T6 Vs T6.1 Lights
New T6.1 LED smoked/tinted tail lights beside OE T6 led tinted lights What do you think
Or alternatively DIY.
www.t6forum.com
Bi Xenon Or Led Projector Retrofit
Hi, I am new to this forum. I have a 2019 T6 with standard H4 halogen reflector lights. They are dreadful! Has anybody fitted H4 Bi-Xenon HID bulbs? if so what was your experience? for example these H4 HIDS4U HID Xenon Conversion Kits. I am thinking about the 55W version, which suggest a 400%...
