buy another relay. very possible the one you bought is faulty..shitty but it happens

 

Already ordered another one. Thanks for the suggestion. I appreciated it.

 

Question.

What exactly happens when the SMG "stalls"
The dealer replaced the whole tranny, and it's still acting up, can't you take it back to them and demand they fix it?

 

I tried, it was supposed to be covered under a drivetrain warranty that I purchased from Zurich. According to Zurich, the SMG System is not part of the drivetrain? It's part of something, just not the drivetrain! Scammers!

Anyway, it feels like there is a clutch slipping in the trans? The motor rev's and the trans does not "catch" accordingly. It's like your'e feathering the clutch, without having a clutch? However, when I stop the car, it feels like the trans is hooked up to much, e.g., the car will still move unless I apply brakes? Then the car will sometimes die. Could this get any stranger?

 

To be honest, I'm dumbfounded on both.

Try the relay as beam said, check m3f SMG troubleshooting too

 

One thing i dont understand is that I never hear any of us here in the Middle-East having issues of this sort with SMG! I have never heard of a PUMP failure either!

 

That's probably because there is some differences between U.S. sold M-3's and those sold outside of the U.S. Since I started searching for a solution, I came accross numerous forum's that refer to M-3's being re-called outside of the U.S. for SMG II upgrades. I have yet to find any reference to a similar recall in the U.S. At this point, I'm seriously considering giving the car back to the financing company. Considering there appears little to no chance of ever getting the thing fixed properly. The whole situation makes me sick! I finally acquire the financial means to buy my "dream car" and it turns out to be a never ending nightmare.

 

Also there is one actual case of subframe damage on one of myfr einds car where it completely collapsed and also one of a E46 328ci. Thats all i've heard off so far, i am sure there might be 2 more cars though. I am reinforcing my car in the next 2 weeks just to be sure but i have no cracks so far.

 

Samon colored piece you replaced is a relay, not a sensor. To me your issue sounds like the SMG GEAR SELECTION SENSOR, I can't be 100% as I don't know that 1756 code.

Had almost identical behavior with one of my '03 M3 SMG cars. Turned out to be my Gear Selection Sensor going bad, I wasn't getting an SMG sensor code though, autologic was giving errors "failed shift" or something similiar.

The Gear Position Sensor is located near the back of the transmission above the drive shaft

PN: 23412229792
#2 in the below diagram
http://www.realoem.com/bmw/showparts.do?model=BL93&mospid=47714&btnr=23_0898&hg=23&fg=10

Part is ~$400, and a couple hours labor to replace. After replacing mine and recalibrating with autologic car shifts better than it ever did now.

--

Car stalling at idle is mostly likely MAF (Mass AirFlow Sensor) dirty or going bad - $250.

 

nocab, did you do do the gear sensor yourself?

 

No, but I hear it is DIY possible. Remove portion of exhaust and drop drive shaft down out of the way and it isn't too impossible to get to.

You will need an autologic or similar to recalibrate the SMG system after swapping the sensor.

Since I have two cars exactly the same (my track car and the track car my girlfriend drives) when I was having SMG issues with my car I just dropped them both off at RRT Racing (BMW Race Shop) and gave the shop a list of components to start swapping from her car to mine until my SMG worked right again. Paying for labor in this case was less than buying a bunch of new parts to figure out which one fixed the issue and I was on a tight timeline with track events every weekend that month.

Kyle

 

Nocab:
Thanks for the suggestion, I'm going to try to replace the compression spring on the shift arm 1st, per a recommendation from a BMW Shop owner? If that does'nt work, the shift selector will assuradly be the next part I replace.

This fix is getting old, I'm getting tired of trying everything to fix this car!

 

I have the same exact problem. Good thing I just bought the car from a used car dealership and the owner of the dealer brought it to a place in queens where they apparently are fully equipped and specialize in M's. Anyways today I called asked so whats the verdict? He said they needed to replace the compression springs on the gear box, also they needed to clear the memory of the computer which was sending a false signal of a bad "relay". Also since the springs were broken the computer kept throwing a code saying the "salmon color relay" was no good. The indicator with the exclamation point with a circle gear also randomly popped up when driving. I get the car back tomorrow lets see what happens. But just wanted to let you know. I only had the car for a day and I was frustrated....I can't imagine how you feel by now. But if he doesn't fix the problem I threatened to pull out of the deal. I'm also considering purchasing warranty coverage on the vehicle....I suggest that for a better piece of mind. I'll keep you updated on the fix....hopefully this will help others that are having the same issue. Peace.

 

What was the name of the place in Queens? I may need to have them look at my car...