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  #1  
Old 06-11-2009, 01:45 PM
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Fuchs Titan 4134 ATF backwards compatibility

Is it advisable (or even preferable) to do a AT fluid change on a 1999 ML 430 with the 722.6 transmission using Fuchs Titan 4134 ATF developed for the 722.9 transmission? This would result in mixing whatever is left of the original ATF 001-989-21-03-10 with the newest ATF 001-989-68-03-10.

Any problems if I do this?

Any benefits?

Thank you--Jim Herold

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  #2  
Old 06-11-2009, 02:40 PM
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Fuchs says 100% compatable with any Dexron trans fluid.

They also state for "full benefit" of this newer & better fluid, a complete flush is required.
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  #3  
Old 06-12-2009, 09:53 AM
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Curious here - how does the Fuchs 4134 compare with the Fuchs 3353 product? The 3353 is also specified for the 722.9 & 722.6 and also carries Dexron III certification.

- JimY
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  #4  
Old 06-12-2009, 11:18 AM
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In August 2008 MBUSA followed Daimler (may 08) & stated that 3353 was no longer a valid fluid for the 722.9 series trans.

Trans fluid spec for 722.9 is 236.14 & only Fuchs 4134 & DSH (Shell Germany) 4134 is approved.

4134 is a much higher viscosity fluid with greater temp ranges & higher load range.
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  #5  
Old 06-12-2009, 11:30 AM
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The Mobile ATF 134 is also an officially approved fluid by Mercedes for 236.14 specs.

The viscosity actually has not changed from 3353 to 4134. They are still around 30 cSt at 40 deg C and 6.5 cSt arond 100 deg C.

fluid / viscosity at 40 deg C / Viscosity at 100 deg C
Fuchs ATF 3353 / 31.0 / 6.3

Fuchs ATF 4134 / 29.6 / 6.5
Shell ATF 134 / 29 / 6.2
Mobil ATF 134 / 29.6 / 6.5
Attached Thumbnails
Fuchs Titan 4134 ATF backwards compatibility-atf.jpg   Fuchs Titan 4134 ATF backwards compatibility-image1.jpg  

Last edited by loubapache; 06-12-2009 at 11:57 AM.
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  #6  
Old 06-12-2009, 12:31 PM
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According to Fuchs...?? Mobil 134 is re-packaged Fuchs 134/4134 fluid!
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  #7  
Old 07-20-2009, 10:05 AM
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Quote:
Originally Posted by M.B.DOC View Post
According to Fuchs...?? Mobil 134 is re-packaged Fuchs 134/4134 fluid!
Wow, learn something new every day! I wonder if the local Autozone or Advance Auto carries the Mobil version?
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  #8  
Old 03-16-2010, 01:16 AM
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Good to know

Quote:
Originally Posted by M.B.DOC View Post
In August 2008 MBUSA followed Daimler (may 08) & stated that 3353 was no longer a valid fluid for the 722.9 series trans.

Trans fluid spec for 722.9 is 236.14 & only Fuchs 4134 & DSH (Shell Germany) 4134 is approved.

4134 is a much higher viscosity fluid with greater temp ranges & higher load range.
Here is a picture of the product.
Attached Thumbnails
Fuchs Titan 4134 ATF backwards compatibility-titan_atf4134_1l.jpg  
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  #9  
Old 05-26-2010, 10:27 PM
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Is this True? Is Fuchs making the Mobil 1 134?

Quote:
Originally Posted by M.B.DOC View Post
According to Fuchs...?? Mobil 134 is re-packaged Fuchs 134/4134 fluid!
I've used Mobil 1 synthetic oil and really trust it. If Fuch is whats in the Mobil 134 atf & its not available here in the US then its good as I can get. I just can't find any info on Fuchs and want something I can be sure of is the very best of what I can find.

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