Overhauled the M70 throttle bodies

[DV8OR]

So I overhauled the throttle bodies today and wow big diference in throttle response!
Still getting the TRANS PROGRAM error though

Next up is a filter and trans fluid change, i know I should have done this off the bat. Thinking of replacing the speed sensor while I am in there but I have has no issue with the speedo.

[shogun]

also clean the plug which is between TCU and the transmission, on the side of the transmission. Often this plug is filled with trans fluid, as the plastic is brittle around the pins in the trans plug and that causes contact problems. Can be cleaned with brake cleaner.
When the trans pan is off and you change the filter: I would then also open up the valve body and clean it, remove every solenoid, clean the passages, test the solenoids and reinstall them. Also check for broken pressure springs in valve body.

Lot of info here
http://www.europeantransmissions.com...MWtechinfo.htm


http://akpp-city.ru/pdf/4HP24_22.pdf
http://www.bmwmotorsports.org/BMW_docs/transfund1.pdf
http://www.transdetail.ru/assets/sit...ch%20Guide.pdf

EDIT:

Have just added new/updated DK cleaning info with lots of pics on the shogun site, see on the left on the site under new and updated

[DV8OR]

yup was gonna look at that plug when i get under the car.

[IamHanSolo]

If you have a chance, would you please post up some pictures? This is something I have on my to do list and want to get a good look at it before I jump in.

[DV8OR]

Shogun just updated the proccess on his webpage best to check it out there. I did not take pictures. I actually bought an extra set of DMKs to play with in case I really meesed it up but it was a very simple.
http://twrite.org/shogunnew/topmenu.html

there is soooo much useful info on his site!!!

[shogun]

Some more info on DK cleaning https://www.bimmerforums.com/forum/s...8#post30258578
see page 1 item 6 DK throttle body rebuild and test http://www.km5tz.com/BMW%20850i.htm