[Teddy1968]

Do I remove the adapter when I finish coding? Thank you.

[jonatious]

You might not need to. There is a security setting on the car to alarm if there is a module in OBD port after you turn off the car. You could just turn off that setting. I dont see any other issues with leaving the adapter on

[Teddy1968]

Coding doesn't always work apparently. I coded 4 things today, only 2 worked. Strange. I really wanted to change the 3 quick turn signal to 5.

[jmciver]

You could keep the adapter connected to your OBD port, but why? It is not necessary to maintain your coding. Do you plan to code on the fly? If you are doing some testing where you are making frequent changes, especially if you need to drive to verify the changes, then sure leave it connected to support your testing. But even then, that would be temporary.

As far as your coding not working, that could be one of a few things happening: 1) Your coding app is not updated to be fully compatible to the software in your car; 2) Some coding takes time (like a few drive cycles) before they are "on" (not that common though), 3) Operator error when doing the coding. FWIW, I have done the 5-blink coding using BimmerCode (it is an option, Expert mode not required), and it worked without issue.

[Teddy1968]

Thank you. I figured it out. I had to go into the idrive settings to change it from 3 to 5.

[ifr]

Originally Posted by jmciver

You could keep the adapter connected to your OBD port, but why? It is not necessary to maintain your coding. Do you plan to code on the fly? If you are doing some testing where you are making frequent changes, especially if you need to drive to verify the changes, then sure leave it connected to support your testing. But even then, that would be temporary.

Agreed. I wouldn't leave it connected.

While it's unlikely, what if you have an accident and the car has to be towed, or you have a breakdown and forget about removing it?

When the dealer attempts to hook up to your OBD they will know the car is coded, and you may or may not have a major issue.

[Blue Moon]

Originally Posted by Teddy1968

Coding doesn't always work apparently. I coded 4 things today, only 2 worked. Strange. I really wanted to change the 3 quick turn signal to 5.

you should go to Idrive setting and set the turn signal 3 to 5, you will see the 5 times option on it.