You are entering the period of rebuild! I spent about $18,000 between
about 110K and now. Most was in a 20K window of 130K miles.

Most sensors, window regulators (5 in my case at $200/ea), rubber parts,
gaskets, transfer case, etc go. I was pretty unhappy with the car until
the last 100k miles.

My last go around was fuel pump ($700, part $405), rear wheel bearing (right, left went a while back, $350), lower rad hose, air pump line, etc.

I have become a DIY expert on this car. If I had of done this with dealer I think it would be north of $30K.

BMW has a clever strategy in my opinion - They sell their cars to lease and purchase customers who generally trade at end of 3 years. Little or no out of pocket costs. Then the next crew takes over and then bends over! Parts are way more expensive than std cars, but albeit high quality.

If you have the nerve to get into this machine and the tranny or motor don't die (mine have run great, no issues) then you might win. If that tranny dies look at $4K to 7K. Plenty of them do. DON't change tranny fluid as per BMW recommendation that this is a lifetime fluid. Those that do, well does "boom" make you feel good?

Like the car but I do think I'm heading back to Toyota land for reliability
and cost of repair. I bought the original Lexus LS400 when it came out in
1990. I drove it for 77K miles and only changed the tires and 1 light bulb!

My .02.