Lowering and coding e61

[e61530dbmw]

Hello!
I just bought an e61 530d.
This has rear air suspension. I would like to lower this as i have coilovers at the front.
How can i do this myself?

I have also removed EGR and installed a downpipe.
This gave me a increased emissions engine light.
I would also like to code this lamp away if possible.

How should i do this?
And with what program?

[MysticRob]

Search the interwebz. You can adjust a particular lever somewhere back there that will fool the vehicle into thinking it's level.

[bmw4curt]

With my Schwaben/Foxwell scan tool, or others, you can put the rear suspension in "TRANSPORT MODE". That will disable the air system and drop the rear 2 inches.