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BMW Diesel Owners / Enthusiasts
Do you own a diesel powered BMW? Maybe a 335d or a BMW x35d? Come and talk about what makes your car great!

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  #26  
Old 11-25-2012, 01:37 PM
BMWTurboDzl BMWTurboDzl is offline
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Quote:
Originally Posted by TDIwyse View Post
Thanks for the links. And thanks for planning to expand the knowledge base. When you do the tranny fluid change, are you going to do a flush to get all the fluid out? Or multiple fill/drain cycles? Or just ~1/2 the fluid that comes out when you drop the pan?
Will either do pan drop or possible fluid exchange machine (pump in the AT moves the fluid around. Not to be confused with a "flush machine").
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  #27  
Old 11-25-2012, 02:12 PM
TDIwyse TDIwyse is offline
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Quote:
Originally Posted by BMWTurboDzl View Post
Will either do pan drop or possible fluid exchange machine (pump in the AT moves the fluid around. Not to be confused with a "flush machine").
Looking forward to your results.

It should be noted that your link to this (http://www.e90post.com/forums/showthread.php?t=499686) is the exact same report I linked here (http://acurazine.com/forums/showthread.php?t=803283). Those scary #'s for our tranny type seem to have made their way around the internet ...

Your other link is for a 335i auto tranny which isn't the same as our 335d tranny. Still interesting, but not quite as relevant as I was hoping for. If anyone else has a link to a 6HP26/28 fluid analysis I'd love to see it. Thanks.
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  #28  
Old 11-28-2012, 07:36 AM
dnaer dnaer is offline
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Is there a DIY thread on our transmission fluid change anywhere? I have a little over 80,000 miles and am thinking of just dropping the pan and draining/refilling just to get some fresh fluid in the mix. I do oil, DEF and brakes myself; is this similar or a step above in difficulty/complexity? Thx
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Hummer H3
Audi S4
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  #29  
Old 11-28-2012, 03:24 PM
TDIwyse TDIwyse is offline
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Quote:
Originally Posted by dnaer View Post
Is there a DIY thread on our transmission fluid change anywhere? I have a little over 80,000 miles and am thinking of just dropping the pan and draining/refilling just to get some fresh fluid in the mix. I do oil, DEF and brakes myself; is this similar or a step above in difficulty/complexity? Thx
Here are a few links I had bookmarked on the subject. Hopefully its helpful. It was more involved than an oil change.

http://www.e90post.com/forums/showthread.php?t=658812
http://www.bimmerfest.com/forums/sho...85#post5676693
http://forum.roadfly.com/threads/128...n-Fluid-Change
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  #30  
Old 11-28-2012, 04:28 PM
Pierre Louis Pierre Louis is offline
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Originally Posted by BMWTurboDzl View Post
Color means little. Wrench boredom is a sickness which we all suffer from it to some degree. Hell I like to change my oil every 6.5k miles. I know it's probably a waste but I just like doing it.

"Hello, my name is John and I am a wrenchaholic". "Hello John! "


Just trying to keep people informed.


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Quote:
On side note I'm doing a pan drop at 50k miles. I don't like the how BMW programmed the transmission to hold 3rd or 4th gear to promote faster warm up on cold starts. It also holds this gear in city driving (trying to sustain engine temps for emissions perhaps?) as well. I just don't like it. I don't mind spending the money to do it and I'll send off a sample to BS so they can add to their data base.
Must be that "Wrench boredom" hitting again, eh?

PL
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  #31  
Old 11-29-2012, 03:39 AM
dnaer dnaer is offline
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Quote:
Originally Posted by TDIwyse View Post
Here are a few links I had bookmarked on the subject. Hopefully its helpful. It was more involved than an oil change.

http://www.e90post.com/forums/showthread.php?t=658812
http://www.bimmerfest.com/forums/sho...85#post5676693
http://forum.roadfly.com/threads/128...n-Fluid-Change
Thank you for the links TDIwyse. Very helpful. Besides digital temp gauge, I think I have everything I need. Looks like the creeper will get a workout, wish I had a full blown lift so I could stand and do the job
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Vehicle History:
BMW X5 35D
BMW 335D
VW Touareg V10 TDI
Hummer H3
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Toyota 4 Runner
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Mercedes 300E
GMC Jimmy
Triumph TR6
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  #32  
Old 06-25-2014, 12:13 PM
TDIwyse TDIwyse is offline
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Approaching 50k and due to the modified nature of the vehicle wanted to get an idea on how the transmission is holding up.

This time I changed the pan as well. Attached some pics.

The fluid was darker than what came out during the first change. The 3 clear glass containers are fresh ZF oil, 2012 fluid, and then what came out yesterday. Sampled the fluid and sent it into get analyzed. Analysis attached of the first and then this 2nd fluid change.

There was some "material" contained on the magnets. Not sure how normal the amount is compared to what others have seen.

Also snapped a shot of the old and new pans side by side, and the transmission guts seen when the pan is removed.

Even though BMW calls the transmission fluid "lifetime" ... ZF says otherwise.

http://www.zf.com/media/media/docume...hselkit_EN.pdf

Depending on the driving style, ZF therefore recommends a transmission oil change every 80000 to 120000 km, or after 8 years at the latest.
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  #33  
Old 06-28-2014, 06:10 AM
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Flyingman Flyingman is offline
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Definitely looks dirty to me. I think 80-120k is a long time for Tranny Fluid but temp is a major factor and we really have no measure of that in our cars.

I'm reaching 74k so may give it a look as well. I'm planning to hold on to this 2010 335D till it is no longer "viable".
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  #34  
Old 06-28-2014, 07:20 AM
KeithS KeithS is offline
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Quote:
Originally Posted by Flyingman View Post
Definitely looks dirty to me. I think 80-120k is a long time for Tranny Fluid but temp is a major factor and we really have no measure of that in our cars.

I'm reaching 74k so may give it a look as well. I'm planning to hold on to this 2010 335D till it is no longer "viable".
At 49K my plans are very similar, hold on till no longer reliable, which hopefully is the 200K mark. Because my car rarely sees severe service, most mileage is highway, my plan was for tranny fluid change around 80K miles. This will be well within the extended warranty should something 'happen' due to the change. For the next change would go with a shorter interval as all the fluid does not actually get changed (torque converter)

Are most also spending the extra $$$ to replace the pan/filter?
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  #35  
Old 06-28-2014, 10:53 AM
Diesel Power Diesel Power is offline
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Quote:
Originally Posted by KeithS View Post
At 49K my plans are very similar, hold on till no longer reliable, which hopefully is the 200K mark. Because my car rarely sees severe service, most mileage is highway, my plan was for tranny fluid change around 80K miles. This will be well within the extended warranty should something 'happen' due to the change. For the next change would go with a shorter interval as all the fluid does not actually get changed (torque converter)

Are most also spending the extra $$$ to replace the pan/filter?
Turner offers a cost effective option. Click on the following URL: http://www.turnermotorsport.com/show...ission-filters

Amazon might have the same part at a lower cost as well.
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  #36  
Old 06-28-2014, 12:45 PM
BMWTurboDzl BMWTurboDzl is offline
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Mein Auto: 435i, 335d sold.
Quote:
Originally Posted by KeithS View Post
...

Are most also spending the extra $$$ to replace the pan/filter?
I did.
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  #37  
Old 06-30-2014, 04:03 PM
lpcapital lpcapital is offline
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When I replaced the transmission fluid on my X5 35d I bought the parts here: http://www.thectsc.com/

They have a kit with everything you need: http://www.thectsc.com/products/oil-...ce-186-50.html

All genuine ZF stuff...

To TDIwyse question bout the amount of material on the magnets, it looks similar to what I found on mine.
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Last edited by lpcapital; 06-30-2014 at 04:05 PM.
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  #38  
Old 06-30-2014, 06:22 PM
Diesel Power Diesel Power is offline
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That's a good price. Beats Turner by about $36.


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