Quote:
Originally Posted by TheRuss
Well I'm definitely glad that I changed it, I'm now just sh*tting bricks that there's something up with my transmission...
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All that "gold" is most likely brass from your trans synchro rings. Sounds like this could be the reason why its hard to shift into first gear.
You said you are the 2nd owner right>?
Maybe the first owner had a bad habit of grinding 1st(or other) gears. When ever you hear grinding from the gearbox... the synchros and gears take a beating. Of course your problem of not being able to get first gear could also be a hanging clutch(not disengaging).
This is the very reason why one should change your tranny fluids. Fresh oil is the BEST oil! These gold brass bits get suspended in the oil... the oil circulates around the tranny and gears... when one of those brass bits gets smashed or munched by two gears... that little brass chunks makes an impression on those two gear's teeth. Over time this can cause a gear to chip and or shatter. Then you have an even bigger problem. This is one reason why BMW only offer's new rebuilt trans and does not let their dealers rebuilt them.
I would change your fluid again and see how much gold you see.
I would not worry too much about the diff fluid. My old diff fluid looked pretty nasty too.
Here is what my old trans fluid looked like. This was the second time I changed it.
Here is what my old trans oil looked like...
(left)
old LT4 trans oil... only used for 30K kms!
Center: New MTF-LT-4 oil. New
Redline ATF-D4(right)
You never said which oil you decided to go with? Which trans and diff oil did you use?
You might want to look at my post #25 here - about approved BMW trans and diff oils...
http://www.e90post.com/forums/showth...=471019&page=2