[Forcefed3]

So my transmission (Automatic) has been acting up for a few weeks. The only thing I could guess it would be is the transmission fluid. During light acceleration, the shifts from 1st to 2nd and 2nd to 3rd seem to slip a little bit. I know BMW doesnt change transmission fluid, so that is why I am seeking advice. I did have a transmission fluid leak earlier this year, I didnt loose too much though. One thing that came to mind is maybe they didn't put any back in and I'm a bit low on fluid?
I stopped worrying about it for a while until today when I used my BT cable to scan for codes, this is what I got:

Gear lever (GWS)
Current Fault Codes 024B:
Gearbox control unit

Electronic power steering
Current Fault Codes 024B:

Dynamic stability control DXC8 Plus - E90 Current Fault Codes

Longitudinal dynamic management
Current Fault Codes 025D:

Transmission distribution module
Current Fault Codes 025D:

I found all this pretty strange. It seems not many people have encountered this problem. Any help would be appreciated.

Exactly like this but not quite as bad:

[Beemw335]

Wow... Didnt you laugh at me when I asked if this could happen lol... You learned the hard way.

[Forcefed3]

Originally Posted by Beemw335

Wow... Didnt you laugh at me when I asked if this could happen lol... You learned the hard way.

Would you stop trolling my threads? This has absolutely nothing to do with the JB4. And dont try to tell me it does because thats not helping me and you are just derailing the thread. If you want to argue start a new thread, the JB4 doesn't "put more stress on the transmission than other tunes."

[Beemw335]

Originally Posted by gbreeE90

Would you stop trolling my threads? This has absolutely nothing to do with the JB4.

Myoriginal post said it had to do with a TUNE!
Its quite ibvious the transmission is failing due to the increase in torque.
Anyways not trying to piss you off, Im sure youre pissed enough.
Good luck

[Forcefed3]

Originally Posted by Beemw335

Myoriginal post said it had to do with a TUNE!
Its quite ibvious the transmission is failing due to the increase in torque.
Anyways not trying to piss you off, Im sure youre pissed enough.
Good luck

Okay im not going to get into this because I just want a few helpful answers. But if it were the tune then there would be 100's of threads exactly like this. I am not the only person on here running increased boost. There are people with much higher HP cars than me that haven't had any issues. Of course any increase in power comes with an increase in stress, but I dont believe that to be the problem. Also, I was referring to the post on your other account where you said "JB tunes put more stress on the transmission than other tunes, because JB tunes create boost so fast."

[Beemw335]

Originally Posted by gbreeE90

Okay im not going to get into this because I just want a few helpful answers. But if it were the tune then there would have been 100's of threads exactly like this. I am not the only person on here running increased boost. There are people with much higher HP cars than me that haven't had any issues.

Of course this transmission is very strong! Hell people have bigger turbos on the stock tranny!!
Im just saying that more torque=more stress
I really suggest you get the transmission fluid changed(maybe its low on fluid who knows)
Just change the fluid... Then if nothing changes, bring it in to the dealer are you still under warranty?

[Mr. 5]

Originally Posted by Beemw335

Myoriginal post said it had to do with a TUNE!
Its quite ibvious the transmission is failing due to the increase in torque.
Anyways not trying to piss you off, Im sure youre pissed enough.
Good luck

You are as wrong as can be.
There are so many people on these forums that are running high amounts of torque with no trans issues.
The only one that I've heard of was Hotrod's but he was running 15 psi plus nitrous.

It has nothing to do with a tune.

[Forcefed3]

Originally Posted by Mr. 5

You are as wrong as can be.
There are so many people on these forums that are running high amounts of torque with no trans issues.
The only one that I've heard of was Hotrod's but he was running 15 psi plus nitrous.

It has nothing to do with a tune.

Thank you. I know you have an A/T, have you ever had any issues? Have you done a complete flush or have you not changed fluid?

Edit: Never mind

[Beemw335]

Originally Posted by Mr. 5

You are as wrong as can be.
There are so many people on these forums that are running high amounts of torque with no trans issues.
The only one that I've heard of was Hotrod's but he was running 15 psi plus nitrous.

It has nothing to do with a tune.

Do you not agree that more power= more stress on the transmission?
Zf rated this tranny to a maximum of 332ft lbs of torque bit of course they can handle much mkre than that, but still increasing power by that much obviously puts more stress on it.

[Beemw335]

Originally Posted by gbreeE90

Thank you. I know you have an A/T, have you ever had any issues? Have you done a complete flush or have you not changed fluid?

Doesnt mr 5 have a 6mt??

[Forcefed3]

Originally Posted by Beemw335

Of course this transmission is very strong! Hell people have bigger turbos on the stock tranny!!
Im just saying that more torque=more stress
I really suggest you get the transmission fluid changed(maybe its low on fluid who knows)
Just change the fluid... Then if nothing changes, bring it in to the dealer are you still under warranty?

Yes, I am. I will probably end up taking it in soon, I dont see it fixing itself. The only problem is BMW has "life time transmission fluid". Thats why I dont want to take all of my mods off and then have nothing done. I was checking to see if anyone has had this problem and gotten it fixed before I go through all the trouble of taking off the mods.

[Forcefed3]

Originally Posted by Beemw335

Doesnt mr 5 have a 6mt??

Yes, I think he does actually. I was thinking of LM for some reason.

[Beemw335]

Originally Posted by gbreeE90

Yes, I am. I will probably end up taking it in soon, I dont see it fixing itself. The only problem is BMW has "life time transmission fluid". Thats why I dont want to take all of my mods off and then have nothing done. I was checking to see if anyone has had this problem and gotten it fixed before I go through all the trouble of taking off the mods.

Yes but if I remember correctly, they replaced a transmission sleeve or a gasket becausr you had a leak??
Well I spoke to my service advisor and he informed me that they NEVER change the tranny fluid except when a repair is involved.
I had my sleeve replaced and they changed the fluid for me.

[Forcefed3]

Originally Posted by Beemw335

Yes but if I remember correctly, they replaced a transmission sleeve or a gasket becausr you had a leak??
Well I spoke to my service advisor and he informed me that they NEVER change the tranny fluid except when a repair is involved.
I had my sleeve replaced and they changed the fluid for me.

Maybe they did change the fluid then. However, I have read numerous times where they wont usually change it due to the price.

[Mr. 5]

Originally Posted by Beemw335

Do you not agree that more power= more stress on the transmission?
Zf rated this tranny to a maximum of 332ft lbs of torque bit of course they can handle much mkre than that, but still increasing power by that much obviously puts more stress on it.

Yes, but that's not what you said, and that's definitely not what you said in your first post, which was of no use to this thread.
You said this and I very much disagree with you.

"Myoriginal post said it had to do with a TUNE!
Its quite ibvious the transmission is failing due to the increase in torque.
Anyways not trying to piss you off, Im sure youre pissed enough.
Good luck"

I agree that more torque puts more stress on it, but it's been shown over and over that this trans is much more capable of torque over 332 ft lbs lol.

People were saying that boost over 14 psi isn't going to be reliable for this engine and I have 95k miles and running strong so go figure.

[Beemw335]

Originally Posted by Mr. 5

People were saying that boost over 14 psi isn't going to be reliable for this engine and I have 95k miles and running strong so go figure.

Yes but you also take care of the car, you change the oil often, seafoam every time you change the oil.
Most people with a/t never change the "lifetime" fluid( lifetime=total bs) thats why problems occur.

[Mr. 5]

Originally Posted by Beemw335

Yes but you also take care of the car, you change the oil often, seafoam every time you change the oil.
Most people with a/t never change the "lifetime" fluid( lifetime=total bs) thats why problems occur.

I don't seafoam every time I change the oil but you are right, most people with a/t never change the fluid, but guess what? most people haven't had any auto trans issues.

Sorry OP, back on topic.

[Forcefed3]

Originally Posted by Beemw335

Yes but you also take care of the car, you change the oil often, seafoam every time you change the oil.
Most people with a/t never change the "lifetime" fluid( lifetime=total bs) thats why problems occur.

BMW doesnt even sell the transmission fluid. People are still debating on an equivalent fluid to use. I do not agree that it is a lifetime fluid either, but I havent found the perfect fluid to use yet. Also, I have taken care of my car very well. I plan on doing the exact same thing Mr.5 did next weekend. I am changing oil this weekend along with seafoaming the car. None of that has to do with the transmission though.

Can we please get back on topic though? Has anyone had anything similar to this?

[Beemw335]

Theres a diy on here to change the a/t fluid. Anyways worst case scenario go stock and dealer it. Good luck

[Forcefed3]

Originally Posted by Beemw335

Theres a diy on here to change the a/t fluid. Anyways worst case scenario go stock and dealer it. Good luck

I am very hesitant to change the fluid, it has been said once you pass 30k it can do more harm than good. I am currently at 36k, so its not too far past.

[chili36]

I think that with those codes it would definitely be worth de-moding and taking it in to the dealer.

[Forcefed3]

Originally Posted by chili36

I think that with those codes it would definitely be worth de-moding and taking it in to the dealer.

I have not seen much information on these codes. If you have any information please post.