340i Transmission Fluid

WrxToBeamerGuy · 01-24-2020, 09:53 AM

I figure if I'm only going to do it once every 60 - 80k miles I don't need to buy all of the software to do the diagnostics etc for a proper fluid change.

Will a BMW dealer perform a transmission fluid change? What about on a modified car?

jh_f30 · 01-24-2020, 06:19 PM

Quote:

Originally Posted by WrxToBeamerGuy

I figure if I'm only going to do it once every 60 - 80k miles I don't need to buy all of the software to do the diagnostics etc for a proper fluid change.

Will a BMW dealer perform a transmission fluid change? What about on a modified car?

There are a couple threads about this topic already. A quick search and you'll see that a number of people have asked their dealership service depts to do a transmission service and they wouldn't do, citing it's a "lifetime fill".

WrxToBeamerGuy · 01-24-2020, 10:27 PM

Quote:

Originally Posted by jh_f30

There are a couple threads about this topic already. A quick search and you'll see that a number of people have asked their dealership service depts to do a transmission service and they wouldn't do, citing it's a "lifetime fill".

Thanks for the information and I hate to hear that.

johnung · 01-25-2020, 12:09 AM

Quote:

Originally Posted by WrxToBeamerGuy

Quote:

Originally Posted by jh_f30

There are a couple threads about this topic already. A quick search and you'll see that a number of people have asked their dealership service depts to do a transmission service and they wouldn't do, citing it's a "lifetime fill".

Thanks for the information and I hate to hear that.

If a BMW dealer does it the price would be outrageous! Find an independent BMW mechanic. Check BimmerShops website for those in your area. Obviously check out their reviews and find someone that you are comfortable with. Bring them the parts so that they don't go getting dealer parts and passing expense to you.

ZF makes the transmission so get a ZF transmission service kit with the pan and ZF fluid. I researched recently and FCP Euro had the best price.

You are smart not to believe lifetime fill BS, especially when ZF says to replace fluid.

Hope this helps!

KeelTiii · 01-26-2020, 07:03 PM

Quote:

Originally Posted by WrxToBeamerGuy

I figure if I'm only going to do it once every 60 - 80k miles I don't need to buy all of the software to do the diagnostics etc for a proper fluid change.

Will a BMW dealer perform a transmission fluid change? What about on a modified car?

Quote:

Originally Posted by WrxToBeamerGuy

I figure if I'm only going to do it once every 60 - 80k miles I don't need to buy all of the software to do the diagnostics etc for a proper fluid change.

Will a BMW dealer perform a transmission fluid change? What about on a modified car?

I asked Irvine BMW and they quoted me $1100. It can be done by the dealership as they have more resources and manuals and etc. than everybody but all they say is that the fluid is lifetime. They charge ridiculous amounts so you will hold off. $500-600 is reasonable given that the parts and the fluid is around $300.

WrxToBeamerGuy · 01-28-2020, 09:03 AM

Quote:

Originally Posted by johnung

If a BMW dealer does it the price would be outrageous! Find an independent BMW mechanic. Check BimmerShops website for those in your area. Obviously check out their reviews and find someone that you are comfortable with. Bring them the parts so that they don't go getting dealer parts and passing expense to you.

ZF makes the transmission so get a ZF transmission service kit with the pan and ZF fluid. I researched recently and FCP Euro had the best price.

You are smart not to believe lifetime fill BS, especially when ZF says to replace fluid.

Hope this helps!

Yeah this helps a lot. I've looked at the procedures to do it myself. Any idea what sort of software I need to monitor the car during the replacement?

WrxToBeamerGuy · 01-28-2020, 09:03 AM

Quote:

Originally Posted by KeelTiii

I asked Irvine BMW and they quoted me $1100. It can be done by the dealership as they have more resources and manuals and etc. than everybody but all they say is that the fluid is lifetime. They charge ridiculous amounts so you will hold off. $500-600 is reasonable given that the parts and the fluid is around $300.

Ooof, yeah I guess I should look around for some reputable independent mechanics. I'm closing in on 60k miles but thinking of doing it within the next year.

johnung · 01-28-2020, 01:46 PM

Quote:

Originally Posted by WrxToBeamerGuy

Quote:

Originally Posted by johnung

If a BMW dealer does it the price would be outrageous! Find an independent BMW mechanic. Check BimmerShops website for those in your area. Obviously check out their reviews and find someone that you are comfortable with. Bring them the parts so that they don't go getting dealer parts and passing expense to you.

ZF makes the transmission so get a ZF transmission service kit with the pan and ZF fluid. I researched recently and FCP Euro had the best price.

You are smart not to believe lifetime fill BS, especially when ZF says to replace fluid.

Hope this helps!

Yeah this helps a lot. I've looked at the procedures to do it myself. Any idea what sort of software I need to monitor the car during the replacement?

I'm more comfortable having an Indy with experience do it.

Newtis website has procedural information.

FCP Euro video

Roach1 · 10-30-2021, 02:44 AM

Hello guys I need some help. So I have a 2017 BMW 340i xdrive auto and my mechanic put a dexron 3 rated oil in my tranny when he flushed it. I did some research and apparently a dexron 6 rated oil is supposed to go in there. He said it was fine as he's done it before and the dexron 3 also meets the BMW spec. He said it is fine. Is this true ? What should I do?

F32Fleet · 10-30-2021, 09:04 AM

Quote:

Originally Posted by Roach1

Hello guys I need some help. So I have a 2017 BMW 340i xdrive auto and my mechanic put a dexron 3 rated oil in my tranny when he flushed it. I did some research and apparently a dexron 6 rated oil is supposed to go in there. He said it was fine as he's done it before and the dexron 3 also meets the BMW spec. He said it is fine. Is this true ? What should I do?

Dex 3 is not compatible with the ZF8HP. GM discontinued Dex 3 in early 2000s or thereabouts so I'm surprised he had it in his shop.

Are you sure it wasn't a generic multi-vehicle ATF like MaxLife?

I would talk to another shop but IIRC Dex 3 was a spec which would shear down to a specific viscosity range whereas current ATFs have thinner starting viscosities but remain stable. Basically a Dex 3 will have a thicker starting viscosity which may cause shift issues.

I would go to BITOG and ask in the Transmission forum.

Roach1 · 10-30-2021, 07:54 PM

Quote:

Originally Posted by F32Fleet

Dex 3 is not compatible with the ZF8HP. GM discontinued Dex 3 in early 2000s or thereabouts so I'm surprised he had it in his shop.

Are you sure it wasn't a generic multi-vehicle ATF like MaxLife?

I would talk to another shop but IIRC Dex 3 was a spec which would shear down to a specific viscosity range whereas current ATFs have thinner starting viscosities but remain stable. Basically a Dex 3 will have a thicker starting viscosity which may cause shift issues.

I would go to BITOG and ask in the Transmission forum.

What's bitog? He ordered it from his supplier and yes I'm sure he used Fuchs ATF 6008 which is a ATF 3+ oil.

F32Fleet · 10-30-2021, 10:19 PM

Quote:

Originally Posted by Roach1

Quote:

Originally Posted by F32Fleet

Dex 3 is not compatible with the ZF8HP. GM discontinued Dex 3 in early 2000s or thereabouts so I'm surprised he had it in his shop.

Are you sure it wasn't a generic multi-vehicle ATF like MaxLife?

I would talk to another shop but IIRC Dex 3 was a spec which would shear down to a specific viscosity range whereas current ATFs have thinner starting viscosities but remain stable. Basically a Dex 3 will have a thicker starting viscosity which may cause shift issues.

I would go to BITOG and ask in the Transmission forum.

What's bitog? He ordered it from his supplier and yes I'm sure he used Fuchs ATF 6008 which is a ATF 3+ oil.

BobIsTheOilGuy.com

Loojs like a LG8 clone rather than Dex3.

Roach1 · 10-31-2021, 10:47 PM

So just to clarify dex 3 is not the same as ATF 3+ ? Or is it ?

Roach1 · 10-31-2021, 10:49 PM

Also, I tried making an account with Bob is the oil and my account was rejected because my username is "vermin" . Wth? It was the same username I am using for this forum. So much for helping bob the douchebag

01-24-2020, 09:53 AM	#1
WrxToBeamerGuy Captain 492 Rep 942 Posts Drives: BMW 340i xDrive Join Date: Dec 2019 Location: Utah iTrader: (0)	340i Transmission Fluid I figure if I'm only going to do it once every 60 - 80k miles I don't need to buy all of the software to do the diagnostics etc for a proper fluid change. Will a BMW dealer perform a transmission fluid change? What about on a modified car?
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10-30-2021, 02:44 AM	#9
Roach1 New Member 0 Rep 22 Posts Drives: 2017 BMW 340i xdrive Join Date: Sep 2021 Location: Toronto Ontario iTrader: (0)	Hello guys I need some help. So I have a 2017 BMW 340i xdrive auto and my mechanic put a dexron 3 rated oil in my tranny when he flushed it. I did some research and apparently a dexron 6 rated oil is supposed to go in there. He said it was fine as he's done it before and the dexron 3 also meets the BMW spec. He said it is fine. Is this true ? What should I do?
	Appreciate 0 Quote

10-31-2021, 10:47 PM	#13
Roach1 New Member 0 Rep 22 Posts Drives: 2017 BMW 340i xdrive Join Date: Sep 2021 Location: Toronto Ontario iTrader: (0)	So just to clarify dex 3 is not the same as ATF 3+ ? Or is it ?
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10-31-2021, 10:49 PM	#14
Roach1 New Member 0 Rep 22 Posts Drives: 2017 BMW 340i xdrive Join Date: Sep 2021 Location: Toronto Ontario iTrader: (0)	Also, I tried making an account with Bob is the oil and my account was rejected because my username is "vermin" . Wth? It was the same username I am using for this forum. So much for helping bob the douchebag
	Appreciate 0 Quote