Most automotive leather is coated anyhow. You can pour a cup of conditioner on it, but it's not really soaking/conditioning the leather in that sense.

A decent wipe down is sufficient enough for any modern car.
Yes, a horsehair brush is a + to agitate dirt that get's between the grains, but water is more than fine IMO....

I think a vin decoder will tell you if you have leather.

BMW Model Archive · BMW VIN Decoder · bmwarchive.org

I just ran mine again (the MT) and it says I have leather.

Leder Dakota/schwarz (LCSW)

If you have Kunstleder that mean you do not have real leather you have imitation leather. Also some parts of the seat may not be real leather. The seating surface is normally real leather but the side bolsters could be vinyl.

Go for it
 

Yes. About a week after I did my steering wheels with the Magic Eraser, I went for it and did all three of my BMW's seats. They came out stunning. This product totally, totally works great on leather. That can't be said for everything I've tried it on around the house. But for leather.. 100% go for it. It pulls ALL of the body oils and dirt out of the leather. I conditioned the seats with an old Meguiars leather care product that is no longer available. Sorry, I can't recommend any leather conditioners on the market these days... they all seem to leave a shine to some degree or another. But maybe there's something out there.

Anyways.. test the Magic Eraser on one leather panel somewhere and wipe it dry, just to give yourself a visual 'Check' that its ok to continue. But I think you'll be pleasantly surprised.

Cautions: Both of my Z3s have Nappa leather, and the Magic Eraser had ZERO negative effects. Didn't take out even the tiniest bit of dye. However, the X5 has Dakota leather, and the driver's left most leather bolster panel (where you scoot in/across to get into the car) had about 5% of the dye come out. The rest of the panels... 0%. They look like brand new. But I attribute the driver's left bolster to wear first.. and the dye is starting to fail just because of 120k miles of use.

Dakota leather is only partially analine dyed (Means.. all the way through). Once you wear down Dakota leather enough, you'll arrive at the real color, which is battleship gray underneath. The thing about Dakota leather is its embossed with a 'pebbling' (simulated hide look), and the tops of those thousands of pebbles are taking more wear and tear. Just a fact of pebbled leather

Nappa leather is fully analine dyed, and completely smooth, so 100% of the surface is spreading out 100% of the wear.

Can't cosign on this. Would not clean leather with fine sandpaper. Scuff marks around the house, sure.

I use Leather Therapy Equestrian Wash to clean the leather, hot soapy water / toothbrush to clean the M tri-color stitching, and Butet Akene Conditioner to condition.