[capt_slow]

Originally Posted by Enabled

And to add to this, a bit.

Around 7-8 years of age, especially in hotter climates, expect to have to change the coolant output flange/pipe that is mounted under the intake manifold.

https://www.realoem.com/bmw/enUS/sho...diagId=11_4565 #12 here

I wish I knew about this 2 months ago when the dealer changed out my OFHG under extended warranty. All the gaskets were changed out, but not the tube.

My F31 is 6yrs/60K now and due for the big preventative service. So far I've managed to get the valve cover+gaskets, OFHG gaskets, coolant, and steering rack changed out under extended warranty. Next up are the drivetrain fluids.

Parts to change out the 2x diff fluids, tranny fluid, TC fluid, and belt+tensioner is about $750. A mix of FCP and dealer. Reputable indy shop labor to do all that is about $450. OEM diff fluid aint cheap, but considering there are no sanctioned alternatives and my car is still under warranty I ran with it.