ncx, can you upload the pictures on the procedures step by step?

SIB 321708 was recently updated (December 2008, now February 2010). Here is it for reference.

Not any more.

SIB 320708 was updated in February 2010 to include all the E53 X5's.

has anyone used/mixed dexron vi with the factory dexron iii for the power steering. the castrol dexron vi bottle says it is backwards compatible with dexron iii but i cant find anyone who posted about mixing it. i need to top off my power steering and plan to flush the old out but want to make sure on the dexron vi.

This lubrizol additive seems to be discontinued. Wanted to give it a try before I swap my PS pump on my 4.8is.

There is a typical ps whine when turning the wheel at low speeds and if at full lock it makes a lot of noise.

Why did they discontinue it, was it not a good solution?

Pelican has it, but in a Mercedes bottle:

https://www.pelicanparts.com/More_In...-989-61-03-M22

Lubrizol 6178 is a friction modifier for limited slip differentials.