Question on Self Leveling Inactive message

[white46]

Hi,

I have a 02 X5 3L with rear only air suspension.
Few days ago, passenger side rear started to loose air over night.
In the morning, I could see the car was sagging on rear right, and when I start up the car, air pump would prime and the car becomes level again.
But yesterday, "Self Leveling Inactive" message popped up and the air pump wouldn't prime anymore and the message doesn't go away.
During weekdays, I didn't have any time so I had to wait until today to replace the problem air suspension.

So today, I picked up used right rear air suspension and replaced it.
Now the question is, how do I kick air pump to prime again? Seems like the system is faulted and became off-line.

This is what I have done so far.

1. with BMW Scanner, tried to scan the car with fault code. I couldn't connect to EHC module for some reason. Where should the "Self Leveling Inactive" fault code should be stored under???

2. Tried with DIS. Same as BMW Scanner, it cannot connect to EHC module.


Am I missing something? How can I clean the error? under what module?

Thanks,
Simon

[williamx5]

Good day!

I had the same thing happen after I got my 2 axle air ride home! It was giving a display, but not airing up. Later I found the pump disconnected and noticed the pump has been replaced. I had converted it over to coils since but after hooking up my computer and talking to EHC module, I could control the system. I must have changed the system configuration somehow to get it to respond... I have a bad height sensation on the rear, but it's at the correct ride height due to the coils... I turned off my error message in the LCM, so I'm not sure if the system is still faulted with the coils in... I used INPA to control the air pump and work all the valves. They all responded perfectly. I might be converting it back over to air ride today...

Do you have a laptop and BMW tools 2.12 installed?

Good luck! Let us know what your do to fix it!

Cheers!

[white46]

Thanks William with your experience.

I've found the problem with mine.
I replaced EHC module, which sits in trunk battery area, and the pump kicked in right away.
The problem was that the water got in there and soaked the EHC module. I guess the water fried it. Darn...
Anyhow, it's good now.

[williamx5]

Good day!

I forgot about that being an issue on the rear only version... my control module is behind the glove box... I'll make a mental note for next time!

Thanks so much for following up with us here! Glad you got it going again!

Cheers!