This is a trans oil change not an engine, but no you do not, replacement isn’t needed unless and or until you notice any leaking from the pan, bmw makes everything regarding the fluid life long so outside of switching out the fluid, the rest is just preference
You need a new pan for every oil change?
This is a trans oil change not an engine, but no you do not, replacement isn’t needed unless and or until you notice any leaking from the pan, bmw makes everything regarding the fluid life long so outside of switching out the fluid, the rest is just preference