How much fluid, tranny and diff, 1991 525i 5 speed

[repenttokyo]

I would like to replace my tranny and diff fluid this weekend, and I was wondering what the capacities were for my transmission and diff. Also, do I need a friction additive, and if so, which one?

[DanDombrowski]

It doesn't really matter what the quantities are, because you'll unfortunately have to purchase 2 quarts of each fluid to do the job, and then you just fill until its full. I think book spec is like .9 for 1 and 1.2 for other (cant remember off the top of my head) but I know that I had to open the second bottle for each.

I have the 3.73LSD, and I dont run any friction modifier in it.

[repenttokyo]

thanks for the fast answer

[Chris'91'525i]

I would like to replace my tranny and diff fluid this weekend, and I was wondering what the capacities were for my transmission and diff. Also, do I need a friction additive, and if so, which one?

My owners manual states;

1.1 Quarts ( 1 Liter) for Tranny.

1.8 Quarts (1.7 Liters) for the Diff........

Remember you need GL-4 for the transmission, and GL-5 for the Diff.

I recently did a drain/refill on my Tranny with Redline MTL , Good stuff ! Shifts much better now..... Had a notchy feeling to the shifting before.....

[Bin_jammin]

Jeez, I didn't see at first that it was a 5 speed, I thought everyone here was smoking crack.

[Jr ///M5]

Just remember to always loosen the fill plug first when doing these type of fluid changes.

The last thing you need is an empty tranny and a stuck fill plug...

JR