2008 135i e88 n54

[Wulf4200]

Hello all, im a previous bmw owner and have experience working on high mileage german cars. I recently sold my 2018 a3 etron prestigious package, was in-between jdm or a euro and ended up going with an older well maintained 2008 convertible 1 series. Im in love with it, ive already replaced the upper and lower vacuum lines, as well as the oil cooling and return lines. Is there some preventitive maintenance, and or upgraded parts i should be doing? Im trying to focus on solidifying the motor before i upgrade engine for power.

All advice and info is appreciated. Car is currently at 130k. Also the car is sitting on 18×8 225/40/r18 (front) 255/25/r18 (rear). I just bought some 18x8.5 rims all around ET35. Will i require spacers? Im planning on doing same size tires all around but also want staggered. Lmk please!!!

[blue135]

I suggest joining the BMW CCA. And through that membership, get Mike Miller's Maintenance Bible for BMWs. (There are probably other ways, but is the only way I know).