I have a 2003 M57 3.0d E53 UK spec right hand drive with rear air suspension.
I’ve had the “self levelling air susp.inactivate” dash error pop up.
Any time I take a right hand bend I have a buzzer go off under the footwell near the FSR.
I’ve pulled the back apart, and found the battery well swimming pool.
I’ve drilled some holes in the plastic battery housing compartment so it doesn’t flood again.
I’ve checked the air suspension module housed in there, it looks toast.
I’ve ordered a new one as close to the year / same part number as mine.
Hoping I don’t have to code everything in/out, hoping a few days with the battery disconnect, it’ll forget about it all with a new working module plugged in.
Now to find the source of the water leak….