[MN_Runner]

I was studying Honda's CVT design via looking at the parts and learned that there is a transmission filter. The filter is inside the CVT warmer assembly. Not sure how often you have to change it. OCD that I am, I will make some time to change (or at least investigate more) it at some point. This is not part of the normal service just like a transmission filter on my Ody 5 speed AT.

 

[DieselGuy]

Which part is the filter? #2? I didn't see it mentioned in Honda's CVT maintenance procedure that someone posted, so perhaps it's a lifetime filter.

 

[Pilm1112]

I was studying Honda's CVT design via looking at the parts and learned that there is a transmission filter. The filter is inside the CVT warmer assembly. Not sure how often you have to change it. OCD that I am, I will make some time to change (or at least investigate more) it at some point. This is not part of the normal service just like a transmission filter on my Ody 5 speed AT.

Good to know. Found some discussion on this on another forum, though not for the Accord specifically. The concern raised there was whether the filter would clog with tiny particles and reduce flow rate on the radiator return line and increase fluid temp.

Which part is the filter? #2? I didn't see it mentioned in Honda's CVT maintenance procedure that someone posted, so perhaps it's a lifetime filter.

Yes, #2. You can see part number names here: ATF warmer

 

[matthewhbishop]

It's an internal filter that gets changed when the fluid is changed. My Honda mechanic just said. Picked his brain during a wind noise check ride along.

 

[HondaTechAV6]

It's an internal filter that gets changed when the fluid is changed. My Honda mechanic just said. Picked his brain during a wind noise check ride along.

not true. this would involve probably 0.50 extra labor on top of a fluid change and require a gasket replacement too.

 

[DieselGuy]

I know on my MB diesel the transmission oil pan had to come off to access the filter. Plus you had to turn the engine manually to get access to the torque converter drain bolt. Not a trivial job, especially for a DIY-er. I was kind of hoping Honda's CVT would just need a simple drain and refill job, and according to that Honda document I mentioned it appears that way.

 

[MN_Runner]

Filter plus Labor

not true. this would involve probably 0.50 extra labor on top of a fluid change and require a gasket replacement too.

You are correct. There will be cost for the filter and $40-50 for the labor. It is not as easy as it looks. You will have to take other parts off to get to the filter.

 

[matthewhbishop]

not true. this would involve probably 0.50 extra labor on top of a fluid change and require a gasket replacement too.

I meant he said you should change it when you have the fluid changed. I have no doubt it will cost to have it changed.

 

[biermark]

I looked for service info on Hondas CVT after getting scared off the VW DSG. VW wants $200 every 40K for service. Their free maint period ends at 36K.... Can these variable belt drives be that much different?

Honda has had CVT for awhile on other models but the service info for a DIY'er just isn't there. Maybe that's a good thing implying less to no maint. I stayed with a 6MT to avoid the service.

 

[cascivic]

I looked for service info on Hondas CVT after getting scared off the VW DSG. VW wants $200 every 40K for service. Their free maint period ends at 36K.... Can these variable belt drives be that much different?

Honda has had CVT for awhile on other models but the service info for a DIY'er just isn't there. Maybe that's a good thing implying less to no maint. I stayed with a 6MT to avoid the service.

The dsg and cvt are completely different animals


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[pparks1]

I know this is an old thread, but does anybody know when you are "supposed" to change the CVT filter? Is this a lifetime part, as I don't see it mentioned in any Honda maintenance minder documentation or from the general "recommended upsell" honda service plans.

 

[08EX-L]

I know this is an old thread, but does anybody know when you are "supposed" to change the CVT filter? Is this a lifetime part, as I don't see it mentioned in any Honda maintenance minder documentation or from the general "recommended upsell" honda service plans.

If its $18 why not change it when you change your fluid if you are a DIY kinda guy.

 

[Hondo1]

If its $18 why not change it when you change your fluid if you are a DIY kinda guy.

It's quite a bit of work. You have to remove the CVT lower pan to access the internal filter. There's a thread on this forum that shows the filter during a CVT tear down.

http://www.driveaccord.net/forums/86-9th-generation/217570-so-i-installed-valve-body-update-my-14-accord-other-day.html

I would be curious to know when Honda recommends replacing this filter also.

 

[pparks1]

If its $18 why not change it when you change your fluid if you are a DIY kinda guy.

Because I don't know where it is. And I haven't heard many here discussing changing it.

It's quite a bit of work. You have to remove the CVT lower pan to access the internal filter. There's a thread on this forum that shows the filter during a CVT tear down.

Yeah, that's going to be more work that I am willing to put in.

would be curious to know when Honda recommends replacing this filter also.

I have not seen anything posted and don't see it in the maintenance minder schedule. I would change it when Honda tells me to, not the dealership, or other people.

 

[rookie]

Lifetime transmission filters seem to be a Thing for Honda. I know over in 7th gen forum there has been a lot written on that subject. Alas, there, with auto transmissions, the filter sits on top of the transmission outside and can be replaced relatively easily.

"Lifetime filter"... kind of becomes a self-fulfilling prophecy, I think?

 

[johnjk]

Must be a Honda thing. The transmission on my 2011 Pilot has a lifetime filter as well. To get to it you have to disconnect the tranny from the engine. That ain't happening. Keep on top of the fluid changes in the CVT and you should be good. If it is anything like the Pilot or CRV, then I would change the fluid, drive for a while, change again, drive for a while and then do it a 3rd time to replace all the fluid in the tranny /cooling system. Personally I drain and refill 2x. Make sure to wipe off the fuzzies that collect on the drain plug magnet. (hence why you do multiple drain/fills to flush that stuff out).

For the CVT, is it still just a drain/refill as in standard Honda tranny's? I know in the past Honda has stated that getting your tranny flushed will void the warranty

 

[pparks1]

Yes, the CVT is just a drain/refill. Lots of folks prefer the 3x drain and refill method. I'm comfortable with a single drain and refill every 40k or so.

 

[BLCKFLSH]

Looking at the parts illustrations it shows two more magnets inside the drain pan too. Might have to drop the pan at some point.

 

[lazytomcat]

I know this is an old thread, but does anybody know when you are "supposed" to change the CVT filter? Is this a lifetime part, as I don't see it mentioned in any Honda maintenance minder documentation or from the general "recommended upsell" honda service plans.

From what I've seen on 9th gen Honda Accord CVT transmission, the filter is inside the CVT warmer housing assembly right below the battery. In order to have room to service the CVT transmission filter, the battery must be removed.
https://www.hondapartsnow.com/parts-list/2017-honda-accord-4dr_ex-ka-cvt/at-atf-warmer-l4.html?PNC=1
Replacement filter is pretty cheap, it also comes with 3 dfferent O- rings.
Other than removal the battery and the CVT warmer assembly, no removal on other parts of the tranny is truly needed.
Honda user manual doesn't mention servicing the filter at all. Thus, some people might mislead into thinking that it's a lifetime filter and no service is necessary.It's wrong since filter will be likely clogged up up to some certain times of CVT fluid change. I think a clean filter is good up to 2 fluid changes,providing that the fluid change interval be done every 30k miles.

 

[McRider]

I just came on a video on YouTube on how to change the transmission filter on the CVT transmission. I didn't know it had one, and there is nothing in the owner's manual about it. What's up with that?

I went to my local NAPA store and asked about the filter. Parts guy looked up the part and showed a kit that included the filter plus a big gasket that must have been for the trans oil pan. And no O-rings. From the YouTube video it is obvious that the oil pan does not have to be removed to access this filter and there appears to be a lot of confusion on this forum as to where that filter is. It is not inside the trans. Here is the video. The filter is accessed at 10:25: