Because the title states I’m having some points filling up my ZF8 transmission after the service. I ordered the ZF pan and lifeguard 8 fluid from FCP and adopted all their steps to a T. The automotive drives tremendous in consolation and shifts are good and silent in consolation and sport+ regardless of how exhausting I speed up. (N55 MHD Stage 2+ 70k miles)
My concern begins as soon as the transmission reaches 75C, as a result of that is when accelerating exhausting in gear 1 and a couple of create a really loud supercharger like whine. From what I have been studying, at 75C the thermostat for the oil cooler opens up.
I do know that they point out to overfill the transmission by 0.5L when doing the preliminary fill however I discover that very exhausting to do as a result of the extra I fill it the extra liquid drips out. It is virtually inconceivable to overfill it. I used to be questioning if there’s any instrument or grommet that may be put within the fill gap to permit for that further 0.5L to be added on… or do I’ve to simply preserve pumping the fluid in sooner than it is popping out after which shortly put the fill plug on.
Realistically even after driving it, letting the trans attain 75C so the valve can open after which letting automotive cool off… the valve would nonetheless be open after I shut off the automotive since it’s above the 75C threshold and the fluid would drain again into the pan, in flip not letting me overfill.
Is that this simply dangerous design or am I lacking one thing? Is it regular for the gearbox to make these noises particularly solely after the trans reaches 75C (presumably confirming my suspicion about low fluid).