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  #25  
Old 01-09-2010, 02:17 PM
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Re: tranny oil

here's a q ...

I am going to change my tranny oil this week, and I was wondering if I should do either of the following ...

1) Flush the whole system replace the filters then fill it back up ?

or

2) just remove the tranny pan let some of it out then replace the filters and top it off ?

I have 70K on my 06 3.7L WK and tranny fluid has never been changed ...

only reason why I'm asking I read somewhere that flushing the whole tranny is not a good idea ...

any takers ?
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  #26  
Old 01-09-2010, 02:35 PM
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Re: tranny oil

I've never been a fan of doing transmission flushes. I always drop the pan and replace the filters.

Are the transmission filters external on the W5A580? You're gonna have to drop the pan completely to change the filter (and is there more than one filter?).
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  #27  
Old 01-09-2010, 04:45 PM
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Re: tranny oil

Quote:
Originally Posted by BlackPepper View Post
Amsoil is ATF +4 compliant so hopefully I should be alright.
"Compliant" only in the opinion of Amsoil. It's still not an ATF+4 licensed product so cannot contain all of the correct additives. Plus, it's a universal fluid which should be a red flag in and of itself.
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  #28  
Old 01-10-2010, 01:44 AM
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Re: tranny oil

So I could drain the fluid and leave the new filter.. (thinking out loud). Thanks for the information.
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  #29  
Old 01-10-2010, 01:45 PM
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Re: tranny oil

Quote:
Originally Posted by LTrainGC View Post
I've never been a fan of doing transmission flushes. I always drop the pan and replace the filters.

Are the transmission filters external on the W5A580? You're gonna have to drop the pan completely to change the filter (and is there more than one filter?).
From what I know you have the drop the whole pan and then change the filters ... just gotta make sure not to mess up the pan cover cuz they easily get dented
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  #30  
Old 01-10-2010, 02:00 PM
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Re: tranny oil

So what's the consensus here (after replacing filters)... drain all of the oil and replace with ATF+4, or keep the oil in and top off?

The service manual says to drain and replace...
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  #31  
Old 01-10-2010, 02:08 PM
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Re: tranny oil

To get to the filters you have to drop the pan and drain the fluid.
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  #32  
Old 01-10-2010, 02:44 PM
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Re: tranny oil

Quote:
Originally Posted by LTrainGC View Post
To get to the filters you have to drop the pan and drain the fluid.
Ok, cool, thanks!

I wanted to tackle this and other maintenance things this weekend, but it was too freakin' cold!

Next weekend for sure!
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  #33  
Old 01-10-2010, 02:48 PM
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Re: tranny oil

It can be a bit of a mess too since the trans pan doesn't have a drain plug. Really stupid. What I did was loosen up a corner of the pan and let fluid drain out of one corner, then once it was done as much as it could there I dropped the whole pan - but there was still quite a bit of fluid in there.

Be sure you clean out your pan and the bottom of the trans, and also make sure you get all of the old RTV off of the pan and trans before reinstalling the pan.
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  #34  
Old 01-10-2010, 02:55 PM
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Re: tranny oil

what's RTV ?
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  #35  
Old 01-10-2010, 02:56 PM
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Re: tranny oil

The transmission pan is sealed with RTV (a type of sealant, available at any auto parts store) instead of a gasket.
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  #36  
Old 01-10-2010, 02:58 PM
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Re: tranny oil

oh ok makes sense now ... so then reapply some RTV to it before sealing it again ...

What about the dipstick ??? Can I get that from anywhere or only stealership ?
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