Coding the E53 with NCS expert

[Turbo_Bimmer]

Originally Posted by patrickkc

Hey, how did you hardwire your angel eyes as DRLs? do you have errors and such?

I did it by hardwire it because I didn't have my GT1-NCS-Inpa softwares at that time.

To disable the DRL (halogen), if you have access to a NCS setup, you just disable it. If you are in Canada or any other country where the DRL are mandatory, only NCS will be able to do the change, not GT1. The reason is because GT1 reads the country code when connecting, and disable options that are not allowed for those country.

If you want to do it the hardware way, like I did, just rewire your DRL like the schematic I put below.
When there is 12v coming from the car (flashing to pass), the 12v relay kicks in and send that 12v to the halogen bulb. When running normally, there is 6v going to the relay, but it is not enough voltage to trigger the relay, so no voltage to the bulb. The 10 ohms resistor is there to put a load and avoid the burnt light indicator. You will need to install a resistor on each side L-R, but the relay circuit can be used to feed both DRL.


For the Angel Eyes, it is similar. You need to use the red-white wire in the ECU box (red wire with white stripes). You will see many wires with that color, just use the one with the biggest size. They are all ignition 12v feeding different parst of the car. Disconnect your battery before doing connections in the ECU box to be on the safe side. Without cutting the wire, just skin a portion of the insulation, and feed a new wire in the rubber grommet into the ECU box and solder it to the red-white wire and tape it.
Again the resistor circuit needs to be repeated on both sides but the relay can feed both AEs.

I did that modification on my E46 (2004-2011) and my E53 (2011-now) and it works very well.