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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Auto trans fluid



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      05-24-2012, 09:21 PM   #1
cervantes89
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Auto trans fluid

I did a search on auto trans fluid but that just confuse me more. What I found out was that the BMW lifeguard fluid was basically the same as mercon sp that's new fords are using. I don't know what fluid to get its either the shell spec or redline couldn't find much on redline fluid either. What I want is a whole kit for my trans because my sleeve is leaking if not what kind of kits are they?
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      05-25-2012, 12:31 AM   #2
cvc 22349a
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http://www.thectsc.com/index.php?p=p...=187&parent=43
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      05-25-2012, 01:29 AM   #3
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I used Pentosin ATF 1 in the 2008 335i with great results in hundreds of qtr mile tests, etc.
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      05-25-2012, 07:02 AM   #4
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Quote:
Originally Posted by hotrod182 View Post
I used Pentosin ATF 1 in the 2008 335i with great results in hundreds of qtr mile tests, etc.
Didn't your transmission go out on you? Isn't that why you got rid of the car?
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      05-25-2012, 08:19 AM   #5
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Quote:
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Didn't your transmission go out on you? Isn't that why you got rid of the car?
Nope, never had any trans problems except for trans limp mode (3rd gear default) when running way over 500 hp/500tq Other than that trans ran fine, and continues to run fine. Cracked my trans pan on a rock early in the life of the car, filled it with this fluid, and trans seemed to run better than ever. One forum member said this fluid is superior to the factory fluid.
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      05-25-2012, 08:28 AM   #6
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Trans leak on my 335 after 50K... This is what I got
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      05-25-2012, 12:13 PM   #7
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Originally Posted by cvc 22349a View Post
bought this when i did mine last weekend. but if your planning on doing it might as well replace the mechatronic sleeve http://http://www.thectsc.com/index....id=3&parent=10
since they have been known to leak, but it can be a pita since there isnt much room.
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      05-25-2012, 12:20 PM   #8
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Originally Posted by aflyrice View Post
bought this when i did mine last weekend. but if your planning on doing it might as well replace the mechatronic sleeve http://http://www.thectsc.com/index....id=3&parent=10
since they have been known to leak, but it can be a pita since there isnt much room.
Agreed. My mechatronic sealing sleeve was replaced under warranty but I will definately replace it again when it's time for a fluid change.
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      05-25-2012, 12:25 PM   #9
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Probably don't need to replace the Mech Sleeve once its been done, the new one is a revised part that shouldn't leak.
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      05-25-2012, 12:32 PM   #10
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^ Not taking that chance. Might as well replace it with the pan/filter and fluid.
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      05-25-2012, 01:46 PM   #11
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I'm between those two kits price difference isn't to bad I just want to make sure which fluid is better. I been searching and I keep reading bad things about lg6 oil but nothing on the redline fluid. I think I'm just gonna play it save and get the kit from cts and the sleeve.
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      05-25-2012, 02:55 PM   #12
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Just order the kit from cts. I'm Doing all the maintenance on my car brakes, trans, diff it's going to be one expensive week lol
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