[A14]

2021 x3 xdrive30i w/ B48, 105k kms (65.5k miles): Twice now the white coolant tank has been low on coolant, the first time it showed a dash light, second was just low in the tank. I found traces of dried coolant coming from the oil filter housing. Drained oil and it’s good, no evidence of mixing.

I’m going to order the metal oil filter housing but what else should I be preemptively changing? Water neck? Which lines are particularly prone to failure or should they just all be done? Any other upgrades available besides the filter housing?

Trying to keep it reliable… (perhaps a futile goal?) If I’m going to end up slowly piecemeal replacing a bunch of stuff I’d sooner just do it all at once and save a roadside failure. Thanks