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Discussion Starter · #1 ·

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I have a 2010 BMW 535I with the step troninc sport transmission. The car has 63K and I don't think the transmission oil has been changed. My question is this. Looking at the http://thectsc.com/ website shows that I need a http://www.thectsc.com/products/oil-change-kit-for-bmw-hyundai-187-43.html kit that includes a plastic oil pan. Is this correct? I want to order the correct parts so I can do the job right.

Thanks for your help.
That is correct. The pan is plastic.

Some other things to consider:

The torque converter retains a little less than half of the total fluid in the transmission. Draining it will remove roughly 6 of the 11 total quarts in the system. In order to gain a higher percentage of new fluid most people do an initial drain and fill (roughly 6 quarts), drive a little to mix the old and new, and then do the pan change. Draining it the second time for the pan change will remove an equal portion of old and new fluid, bringing the percentage of new fluid up to a little over 80%. If you plan on a second drain and fill then buy 12 quarts up front to save on freight.

A common area for these transmissions to leak is at the Mechatronic Sealing Sleeve, which is where electrical cables enter the transmission itself. Many people replace this sleeve when they do the pan replacement, as if it leaks later the pan and fluid will have to be dropped a third time.

You may want to buy a few extra pan screws as from what I have read they are easily stripped (my pan and sealing sleeve had been replaced by the previous owner shortly before I purchased it).

The transmission adapts the movement of fluid through solenoids based upon part wear and fluid condition to maintain shifting performance, and stores this adaptation information (see attached). After the fluid is replaced many users find that erasing these settings the transmission has stored over time allows the transmission to relearn new settings based upon how the transmission reacts to the new fluid, which can produce smoother performance. You may want to check performance after you are finished, and if you note any adverse change in performance reset the adaptation (you can do it yourself if you have a cable and software) or have an Indy reset it for you.

Post back if you need to be pointed to DIY or ZF procedures.
 

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Thanks, Bimmerfan52,

All very good information.

Question, which cable and software are you referring too? So far, I haven't found any that supports the 2010 model year yet. I would love to get that also, I plan on doing most if not all the work to my BMW, and I know the electronic tools are as important as the hand tools.
 

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Thanks, Bimmerfan52,

All very good information.

Question, which cable and software are you referring too? So far, I haven't found any that supports the 2010 model year yet. I would love to get that also, I plan on doing most if not all the work to my BMW, and I know the electronic tools are as important as the hand tools.
Not sure exactly what the 2010 has (my 545i is from the early years of the E60), but new cables for the e-sys are showing up along with software.

http://www.amazon.com/BMW-ENET-Ethernet-Interface-Cable/dp/B00BFRW6FO
https://www.bimmerfest.com/forums/showthread.php?t=624369
 
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