Funny thing happened last night. I was on my way home and the air suspension error popped up.

I went home and checked the rear tire pressures. The rear left was around 40+ while the rear right was around 34 psi. I pumped the rear right back to 40 psi and that seems to do the trick. The suspension error went away.

Fingers crossed but the error did not come back today.

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2003 X5 4.6is Estoril Blue, acquired March 2018
2013 128i M Sport 6 MT Space Grey daily driver
2010 535xi 6 MT Barbera Red