SOLVED: Manual Transmission -- Transmission Oil Pump Working?

[RocketyMan]

Has anyone been able to successfully use the service routine in ISTA that activates the transmission oil pump as for purposes of draining/filling transmission oil? I cannot hear anything actually "activating" and am wondering if the oil pump is even working.

I even made sure to make sure the transmission is in neutral...closed the door...pushed in the clutch. No idea as there are absolutely no audible sounds. Maybe I have a bad pump or something because I am now curious if I have enough oil in the transmission when I replaced it with fresh oil.

[RocketyMan]

Here is the part on realoem: https://www.realoem.com/bmw/enUS/par...&q=11417834496

#9 as in the picture.
I'm starting to wonder if I have the full fluid fill on the trans or not.

[--Aramis--]

I have done it when i have flushed my manual gearbox, no problem i have followed ISTA procedure.

When i have activated the gearbox oil pump some 0,5l of very dark oil flow off the gearbox.

Refill the gearbox with castrol Transmax Z oil, the gearbox is perfect now.

Edit: you could hear very distinctly the sound of the pump, and when the gearbox is empty of oil, check the metal filter cartridge

[bshowalter]

I have done it using the procedure in ISTA. The pump is loud, no doubt you'll hear it if it runs. Make sure the car is in ACC mode with the key, if not, it won't activate.

[RocketyMan]

Okay. Thank you guys for confirming it is indeed LOUD because I am hearing nothing.

I'm going to further investigate. When I took out the filter screen from before, it was clean with no particulates or anything trapped within the mesh.

Good point on making sure the IGN is set properly. I did set it to ON and not ACC. Maybe I can try that next.

[RocketyMan]

First step in any electrical issue is...[checking] wiring.

I verified the wiring to the pump. TIS is wrong...again (unless someone else can confirm actually better than the documentation provided). X6200 is perhaps incorrectly marked instead of X6011 like it ought to be.

Anyway, I have continuity from the DME pin 5 (which is GREY and not red) to pin 1 on the X6011. And from the pin 1 of PUMPE to the connector all the way down to the pump 2 pin connector (pin 1 on pump connector) I have continuity.

I think this is suggesting I have a bad pump.

[RocketyMan]

Okay. I guess I MAGICALLY fixed it...somehow.

I reconnected the oil pump two pin connector and then just jumped the red wire on X6011 to the battery positive. Indeed it sounded TERRIBLE, but actually ran! When it was running, it sounded kinda gritty and then got better.

I'm wondering if it was the connectors fault on the pump. It did look a little grimey and perhaps wet when I pulled it out. I just simply wiped it up and reconnected it after verifying continuity to the connector. So now it works!

[RocketyMan]

So BTW, there CANNOT be any faults on the transmission. I found this out by disconnecting the transmission oil-temp sensor as to move it out of the way of the fill port since I got the oil pump magically working. When I went to try and run the service-routine, it didn't work. Then as soon as I plugged in the temp sensor, it started working again (there is a slight debounce time).

FYI, I was curious how much oil I was under, and when filling and running the pump constantly there was about 10 oz of oil that I could add. Hopefully I didn't cause any issues with a lower oil level.

[jhu321]

Originally Posted by RocketyMan

So BTW, there CANNOT be any faults on the transmission. I found this out by disconnecting the transmission oil-temp sensor as to move it out of the way of the fill port since I got the oil pump magically working. When I went to try and run the service-routine, it didn't work. Then as soon as I plugged in the temp sensor, it started working again (there is a slight debounce time).

FYI, I was curious how much oil I was under, and when filling and running the pump constantly there was about 10 oz of oil that I could add. Hopefully I didn't cause any issues with a lower oil level.

So I’m in a weirder situation. Validated continuity. Disconnected the harness from the dme jumped pin 5 the grey wire to the battery 12v. Hear the pump run. So I know wiring is good. Checked all dme fault codes. None found. Asked Ista to turn on pump…. Nothing. I know I have good pump and I know I have continuity all the way from the dme to the pump. The only thing I can think of is I have a bad dme? That’s pretty far fetched given no codes are thrown and everything works other than this service function. The pump even sounds very strong too.

I’m at a lost. Any stupid thing for me to check? I’m in acc mode. Ista 4.39.20.

Ista thinks it’s firing the command but it’s not activating the pump

[RocketyMan]

Originally Posted by jhu321

So I’m in a weirder situation. Validated continuity. Disconnected the harness from the dme jumped pin 5 the grey wire to the battery 12v. Hear the pump run. So I know wiring is good. Checked all dme fault codes. None found. Asked Ista to turn on pump…. Nothing. I know I have good pump and I know I have continuity all the way from the dme to the pump. The only thing I can think of is I have a bad dme? That’s pretty far fetched given no codes are thrown and everything works other than this service function. The pump even sounds very strong too.

I’m at a lost. Any stupid thing for me to check? I’m in acc mode. Ista 4.39.20.

Ista thinks it’s firing the command but it’s not activating the pump

I think this is an issue with ISTA. Thats the same version I have and I noticed that when I upgraded, the routine for this stopped functioning.

Simply put, I just forced the oil cooler pump on...but I did it with the x6011 connector.

[jhu321]

Originally Posted by RocketyMan

I think this is an issue with ISTA. Thats the same version I have and I noticed that when I upgraded, the routine for this stopped functioning.

Simply put, I just forced the oil cooler pump on...but I did it with the x6011 connector.

That that’s pretty much what I did as well using pin 5 of the ecu harness since I had it open to test continuity.

I hope it’s just Ista but I found a used dme off eBay for 150 bucks so I’m gonna do the mss6x flasher thing to delete ews and code to my vin… if it’s still not running the pump then I’ll have to conclude it’s Ista. If it does run then there’s something wrong with my dme.

[RocketyMan]

Originally Posted by jhu321

That that’s pretty much what I did as well using pin 5 of the ecu harness since I had it open to test continuity.

I hope it’s just Ista but I found a used dme off eBay for 150 bucks so I’m gonna do the mss6x flasher thing to delete ews and code to my vin… if it’s still not running the pump then I’ll have to conclude it’s Ista. If it does run then there’s something wrong with my dme.

I would imagine there is a Tool32 routine just for this exact scenario. Searching the interwebs, I don't see anything right off--but I'm sure it's in there.

[jhu321]

Originally Posted by RocketyMan

I would imagine there is a Tool32 routine just for this exact scenario. Searching the interwebs, I don't see anything right off--but I'm sure it's in there.

Tools32 will let me change vin and recode. But the problem is the dme hold the ews key and it needs to match the one in the cas.

[jhu321]

Originally Posted by RocketyMan

I think this is an issue with ISTA. Thats the same version I have and I noticed that when I upgraded, the routine for this stopped functioning.

Simply put, I just forced the oil cooler pump on...but I did it with the x6011 connector.

just updating the thread in case other people need help. as it turns out it will not run the transmission pump if there are ANY DME codes. I had a completely unrelated code - missing BSD for alternator when i was testing it and i could never get the transmission pump to run. I just finished replacing my alternator and for shits and giggles I decided to tell it to turn on the pump and lo and behold, it starts up just fine. I ran it while the engine was running too, so the parameters for ista to respond to the command is very specific it seems. If you're doing it, make sure you get rid of ALL your DME codes

[RocketyMan]

Originally Posted by jhu321

just updating the thread in case other people need help. as it turns out it will not run the transmission pump if there are ANY DME codes. I had a completely unrelated code - missing BSD for alternator when i was testing it and i could never get the transmission pump to run. I just finished replacing my alternator and for shits and giggles I decided to tell it to turn on the pump and lo and behold, it starts up just fine. I ran it while the engine was running too, so the parameters for ista to respond to the command is very specific it seems. If you're doing it, make sure you get rid of ALL your DME codes

Good to know. I guess this gets extended to more than just any fault codes related to the transmission.

I will need to try this again when I get the chance.

[BigTee]

Originally Posted by RocketyMan

Okay. I guess I MAGICALLY fixed it...somehow.

I reconnected the oil pump two pin connector and then just jumped the red wire on X6011 to the battery positive. Indeed it sounded TERRIBLE, but actually ran! When it was running, it sounded kinda gritty and then got better.

I'm wondering if it was the connectors fault on the pump. It did look a little grimey and perhaps wet when I pulled it out. I just simply wiped it up and reconnected it after verifying continuity to the connector. So now it works!

When you say "jumped" the red wire... did you do this right at the connector or had to pinch the redwire while the connector was plugged in?

[RocketyMan]

Originally Posted by BigTee

When you say "jumped" the red wire... did you do this right at the connector or had to pinch the redwire while the connector was plugged in?

I'm not sure what you mean exactly by "pinch." Sounds like something I would most likely not do.

At any rate, In my previous picture, leave the connector plugged in and supply 12V to the red wire to activate the pump.

[CamasM3e93]

Interesting thread but have you considered just going with DCT????

[RocketyMan]

Originally Posted by CamasM3e93

Interesting thread but have you considered just going with DCT????

LOL...

Maybe my next car.

[smokinjoe64]

Originally Posted by CamasM3e93

Interesting thread but have you considered just going with DCT????

Why trade a headache for a migraine?

[RocketyMan]

Originally Posted by smokinjoe64

Why trade a headache for a migraine?

LOL.

Touche!