2005 TRANSMISSION FAILING.. MODLE # A5S 390R YZ

[upallnight]

Originally Posted by c-bass

Many people use the Valvoline Maxlife ATF

https://www.valvoline.com/our-produc...ti-vehicle-atf

The transmission fill procedure is not complicated at all.

You need to have the transmission at normal operating temperature and when you unscrew the fill plug there should be a slight trickle of fluid coming out.

If you are worried about driving the vehicle then let the engine run until it comes up to temp (needle in the middle) and shift into each gear for a few seconds. R N D etc. Then check the fluid level.

Basically the trans fluid will expand when heated (like most fluid) so if you fill the transmission to the proper level while it's cold once you're driving around the fluid level will be too high.

The transmission shop that I deal with specializes in European cars and while I had my car there for a flush I was asking the guys all about the pain in the ass fill procedure. They said it's not that sensitive and proceeded to walk me through it on my car.

If you read how to do the fill procedure from the manual it sounds a LOT more complicated than what it really is.

au contraire mon ami

Not according to the TIS Bulletin issued by BMW for filling and checking the fluid level in their trans. The temp should be between 30C - 50C. If 100C is the boiling point of water 50C is only 122F. With a thermostat that is set to 195F that would be Waaaaaay over the maximum temp allowed.

Here's a link to the TIS

https://www.bimmerfest.com/attachmen...py-pdf.301615/

Watch out for the Cliff Claven on this board.