Self level suspension inactive! Finally fixed!!

[four.8is]

Glad to let everyone know It was a good relief today after replacing the battery and resetting the code, the air suspension is working as it should!
For me it was the battery which was insufficiently charged.

Anyone having same issues might wanna check the battery first.And if you see a pool of water in the battery compartment like I found, clean the rear hatch rubber drain plugs too while you're at it.im glad the water didn't get so high to make a mess of the electronics..
Hopefully I won't break the switch now from playing so much with the suspension haha

Cheers

[tmv]

That's what I have been telling others. I have the exact same problem when I bought my iS. I have to clear the fault code every other day until I replace the battery.
Now you can code it lowered

[Ricky Bobby]

A strong battery is the first start, then check for healthy alternator by checking OBC test 9 for running voltage.

If both check out, then scan the module for faults and its likely either compressor is burnt out of spec or you have a slow leaking airbag, in my couple years on here those are the most popular faults with the EHCII system.

[flg8r90]

How do you clear the code ?

Thanks,

Ed

[Ricky Bobby]

Need to hook up DIS or BMW specific diagnostic program to clear the fault in the EHCII module

[KyleNatolix5]

You have air management right? I have coilovers and the code on the dashboard has got to go. Did you bring it to the dealer to have them code it?

[four.8is]

Originally Posted by KyleNatolix5

You have air management right? I have coilovers and the code on the dashboard has got to go. Did you bring it to the dealer to have them code it?

Yep EHC II..A friend of mine did it for me...

[four.8is]

Guess what.after a day of working just fine, the sucker went back into inactive mode...and I thought I'm done with it.

[Ricky Bobby]

did you read the module and see which fault code was stored? Post up what code you have theres a good chance I can help...

If the error is on the dash there is a hard fault stored, my bet? Burnt out compressor in need of repair kit.

[itscoo2pyopants]

If it's even on all 4 corners and not going lower, I would set the desired ride height and forget it.

The previous owner of my 4.8 spent $4,000 replacing pumps, sensors, abs module, etc before I bought it to clear the code for only 100 miles. Turned right back on. The shop told me to bring it back so they can "diagnose" it further. I've had it for 6 months, having no issues. I have the same inactive suspension warning.

Not worth throwing parts and money at it if it's still functioning.

I used INPA to set the ride height.


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