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-   -   Dreaded trans. Failsafe prog. (https://xoutpost.com/bmw-sav-forums/x5-e53-forum/113700-dreaded-trans-failsafe-prog.html)

EODguy 10-07-2021 07:29 AM

Quote:

Originally Posted by andrewwynn (Post 1210840)
I'm seen where some module on the same buss shorting out will cause communication errors.

Search for that cause. Look at which / where modules share the same buss.

Also members have had problem where they couldn't connect because the OBD port itself was broken.

Stop talking about my crack... [emoji1787][emoji1787]

Mine had a crack that allowed the block to spread and it was frustrating..!!

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andrewwynn 10-07-2021 09:54 AM

That's hilarious. I was taking about his crack without realizing

Oldmactech 10-08-2021 09:43 AM

I checked the connector on the drivers front of the transmission pan close to the Bowden cable connection. Is there a switch at the rear also?


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andrewwynn 10-08-2021 12:00 PM

Not sure what that connection is. The main connection is starboard aft. At least I remember easy access by driving up onto a curb and using a driveway opening in the curb to roll under the car to shake the water out of the connector. It's a large round bayonet type connector.

Oldmactech 10-09-2021 11:02 AM

Ez on the nautical terms sailor. I’m a land lubber.

But I like the curb cut as an ad hoc quick ramp technique.


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andrewwynn 10-09-2021 11:24 AM

My original thought was to drive straight up onto a curb stop in a parking lot but the car was in trans failsafe so 4th gear made that a very bad idea.

Had to drive around a couple neighborhood blocks until I found an appropriate driveway with a nice tall curb but it worked perfectly.

For no good reason people like to swap which side they call left and right on a car then they use driver side and passenger side but 1/3 the people on xo have RHD so those are not good to use.

We could use gas filler side which is the same I think world wide. (that coincidentally is the right/starboard side, it does not magically become the left side when you face the car from the front).

Point of fact; my right arm stays my right arm when you face me. It's not different with cars, I have no idea why a large percentage of people think it does.

Anyhow i think I climb in right under the right front door to get to the connector but it is so close to center I did it from the left side the first two times.

Oldmactech 10-09-2021 12:46 PM

Ok, take the rest of the day off I’d suggest.
As am I.


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Oldmactech 10-11-2021 12:12 PM

Question: if you put 12v to the DISA , does the flap shut?

Just got a new DISA and it doesn’t move with 12v applied to it. I see a YouTube where if you put 12v to it the flap slams shut.


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andrewwynn 10-11-2021 01:09 PM

Dreaded trans. Failsafe prog.
 
No. You suck on the hose fitting. It's moved from vaccum that is controlled by the solenoid.

If you look for my repair thread on disa (search andrewwynn and thread disa) there is a pic of me testing the vaccum motor

Oldmactech 10-15-2021 11:16 AM

Tranny fluid question.

I got around to checking the trans fluid level and cold when I crack the side flung plug and a significant amount of fluid came out, probably a cup and a half before I replaced the plug (and more would have come out.)

Assume the fluid was changed at some point? Isn’t it supposed to be topped off the point where the fluid no longer leaks out when running?

If it’s not at operating temp, make a difference?

Perhaps overfilled or am I’m looking at it wrong?


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