2013 X3 doesn't have memory 1 and memory 2 for lumbar support, but it does stay at the same setting it was last adjusted to. It doesn't revert to a default setting when one turns the engine off.
Memory 1 and memory 2 will save separate settings for side view mirrors and up/down/forward/back for driver's seat. Can't have separate settings for lumbar or side bolsters.
2014 BMW 528ix M Sport- Space Gray Metallic, Mocha Nappa Leather, Anthracite Wood Trim. Packages: ACC, DA, DA+, Lighting, Luxury, Prem, H-K SS, SAT, Rear Shade
2013 BMW X3 28i M Sport - Deep Sea Blue Metallic, Sand Beige Nevada Leather, FS Wood Trim, HG Roof Rails, and BMW Apps. Pirelli P7 RFTs.
Packages: Cold, Con, DHP, Prem, Premium Sound, Tech