When is time for AUTOtranny Flush/Pan Maintenance

N54 TuNeR · 03-14-2013, 11:27 AM

I have about 33,000 miles on my auto tranny.Tuned since 8000 miles FBO & Meth since 25,000miles.Now have Alpine Flash.
Since we are pushing our cars to the limit should the trans fluid be changed soon?Or a Tranny pan service kit?When should it be done with a fully modded 335?

wahooooman · 03-14-2013, 12:01 PM

Quote:

Originally Posted by N54 TuNeR

I have about 33,000 miles on my auto tranny.Tuned since 8000 miles FBO & Meth since 25,000miles.Now have Alpine Flash.
Since we are pushing our cars to the limit should the trans fluid be changed soon?Or a Tranny pan service kit?When should it be done with a fully modded 335?

this is a good question as i asked my dealership today. my dealer said they dont recommend changing the fluid because it is BMW life time fluid, but if people ask they will do it around 100k. Im at 80k tuned for 40k, and i have no issue yet (fingers crossed) but hopefully some one with more understanding can clear things up!

BillionPa · 03-14-2013, 08:16 PM

ZF says the 6HP21 interval is 30K miles....

OKstate11 · 03-15-2013, 06:00 PM

I have 78,000 on my 2009 and asked my Service Rep and he said the few times they have changed out the Tran fluid on other cars that it still looked very clear, clean, and translucent. He recommended I not change it per the owners manual

Ph0zenstone · 03-15-2013, 06:21 PM

I changed mine at 50K and it looked ok. Prolly could have lasted longer but my next planned interval is 100K. Transfer case on the other hand was damn dirty...no way that would've lasted 100K

JunkStory · 03-19-2013, 01:49 AM

Quote:

Originally Posted by BillionPa

ZF says the 6HP21 interval is 30K miles....

Ermm ZF states 50k miles for heavy usage. I changed mine at 50k miles, I would recommend the same.

BillionPa · 03-19-2013, 05:00 AM

Quote:

Originally Posted by JunkStory

Ermm ZF states 50k miles for heavy usage. I changed mine at 50k miles, I would recommend the same.

I though they listed 50K in kilometers, which would translate to 31K miles, I could be mistaken

N54 TuNeR · 03-19-2013, 08:52 AM

Looks like I'm gonna change the fluid this spring when it warms up here.thx for all your input.

F32Fleet · 03-20-2013, 06:34 PM

Quote:

Originally Posted by JunkStory

Ermm ZF states 50k miles for heavy usage. I changed mine at 50k miles, I would recommend the same.

+1.

Aperture Vision · 04-01-2013, 12:06 PM

I just changed the fluid (LG6) and mechtronic sleeve on my 6HP19 yesterday at 100K miles. First time it has been done in the 5 years I have had the car. Let me just say, I should have changed it sooner. It was pitch black. I was getting a slight slip from 1st to 2nd prior to the change. I would say between 50k and 75k miles would be good intervals for the change. I'm sure I will do it again this year since I didn't get all of the fluid out because of the TC, but it definitely should not wait until 100k.

03-14-2013, 11:27 AM	#1
N54 TuNeR ///Member 49 Rep 327 Posts Drives: E90 '08 335i Sedan Join Date: Aug 2012 Location: Coast iTrader: (5)	When is time for AUTOtranny Flush/Pan Maintenance I have about 33,000 miles on my auto tranny.Tuned since 8000 miles FBO & Meth since 25,000miles.Now have Alpine Flash. Since we are pushing our cars to the limit should the trans fluid be changed soon?Or a Tranny pan service kit?When should it be done with a fully modded 335? __________________ E90 335i Auto, Cold Weather, & Sports Prem. Package, Navigation Mods: JB4/MHD, ACF ST, Precision T/S 6062, AD-Eng Mounts, PrecisionRaceworks STG_3+LPFP,//HPF Exhaust Titanium Tips, Custom HighLow OCC, Precision RaceWorks Coils,RACE InterCooler, Custom Meth Kit, v8Bait(Justin)Tuning
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03-14-2013, 08:16 PM	#3
BillionPa Second Lieutenant 2 Rep 288 Posts Drives: 335i Join Date: Feb 2013 Location: USA iTrader: (0)	ZF says the 6HP21 interval is 30K miles....
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03-15-2013, 06:00 PM	#4
OKstate11 New Member 2 Rep 18 Posts Drives: 2018 X1 xDrive Join Date: Dec 2012 Location: St. Louis, MO iTrader: (0)	I have 78,000 on my 2009 and asked my Service Rep and he said the few times they have changed out the Tran fluid on other cars that it still looked very clear, clean, and translucent. He recommended I not change it per the owners manual
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03-15-2013, 06:21 PM	#5
Ph0zenstone Major General 325 Rep 5,370 Posts Drives: 2018 530e X-Drive Join Date: Apr 2007 Location: NY iTrader: (74)	I changed mine at 50K and it looked ok. Prolly could have lasted longer but my next planned interval is 100K. Transfer case on the other hand was damn dirty...no way that would've lasted 100K
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03-19-2013, 08:52 AM	#8
N54 TuNeR ///Member 49 Rep 327 Posts Drives: E90 '08 335i Sedan Join Date: Aug 2012 Location: Coast iTrader: (5)	Looks like I'm gonna change the fluid this spring when it warms up here.thx for all your input.
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04-01-2013, 12:06 PM	#10
Aperture Vision New Member 2 Rep 24 Posts Drives: 2006 e90 325i Join Date: Jan 2013 Location: Virginia, USA iTrader: (0)	I just changed the fluid (LG6) and mechtronic sleeve on my 6HP19 yesterday at 100K miles. First time it has been done in the 5 years I have had the car. Let me just say, I should have changed it sooner. It was pitch black. I was getting a slight slip from 1st to 2nd prior to the change. I would say between 50k and 75k miles would be good intervals for the change. I'm sure I will do it again this year since I didn't get all of the fluid out because of the TC, but it definitely should not wait until 100k.
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