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Old 10-08-2019, 07:43 PM   #1
soupking
 
Drives: 2018 Toyota Yaris iA
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2018 Yaris iA - Changing the ATF?

I took my Yaris iA to my mechanic and he said that he couldn't find the dipstick or figure out how change the ATF on my Yaris.

Is there a basic way to do this or is there something special about the 2018's? I was told that our engine was different than normal. That much I know.
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Old 10-08-2019, 10:17 PM   #2
KALISPEL II
 
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The iA version of the Yaris is simply a rebadged Mazda2 sedan with the Mazda SkyActiv engine/powertrain/etc. - so anyone who can service a modern-day Mazda3 sedan/hatch can also service an iA.
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Old 10-08-2019, 11:52 PM   #3
B.B._07
 
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Why would you want to change the ATF on a 1 year old car? The modern low viscosity ATF's like Toyota WS or Dextron VI are all semi or full synthetic and last a very long time. I don't know what the ATF service interval is for a 18 Yaris iA but it has to be at least 100K miles.
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Old 10-09-2019, 12:34 PM   #4
Toolaholic
 
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Quote:
Originally Posted by B.B._07 View Post
Why would you want to change the ATF on a 1 year old car? The modern low viscosity ATF's like Toyota WS or Dextron VI are all semi or full synthetic and last a very long time. I don't know what the ATF service interval is for a 18 Yaris iA but it has to be at least 100K miles.
I agree 1 year is too early but I have read Toyota w/s leaves a lot to be desired . My 2007 shifts so much better with amsoil fluid in the transaxle.
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Old 10-19-2019, 09:42 AM   #5
soupking
 
Drives: 2018 Toyota Yaris iA
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Quote:
Originally Posted by B.B._07 View Post
Why would you want to change the ATF on a 1 year old car? The modern low viscosity ATF's like Toyota WS or Dextron VI are all semi or full synthetic and last a very long time. I don't know what the ATF service interval is for a 18 Yaris iA but it has to be at least 100K miles.
It has that over that many miles but a gross amount of the miles are on highway so it's hard to gauge. It still doesn't labor too much, but I looked to get it done anyway as a precaution. Engine is a champ and we're religious about getting the oil changed (fully synthetic only).

The mechanic tells me it's 'sealed' and that he can't access the transmission. He called to another guy and said he didn't have the setup to do it either.

So I think for whatever reason I have to take it to a dealership which I fear. I have a terrible history with dealerships sales and service. So much I bought this car through Hertz. If I could find a mechanic that could do the job I'd pay double, but I don't think that is the deal with this model. Even the fuses on this thing are custom.

The ATF required for it is Mazda FZ fluid.

Thanks for the replies, guys.
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Old 10-23-2019, 11:28 AM   #6
91mustang
 
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If the transmission is sealed you don’t need to service the fluid.
Look at what the manual says, should be detailed in there.
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Old 10-23-2019, 05:34 PM   #7
soupking
 
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Quote:
Originally Posted by 91mustang View Post
If the transmission is sealed you don’t need to service the fluid.
Look at what the manual says, should be detailed in there.
Cool, I looked once. I'll look again. Maybe it's more simple than I realize. Thanks, Mustang.
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Old 10-29-2019, 11:16 AM   #8
mimelio
 
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ATF FZ fluid (Toyota part number 00718-ATF-FZ) or Use Mazda ATF FZ fluid... Or Ravenol J1D2160-001-999 ATF (Automatic Transmission Fluid) - FZ Fluid Full Synthetic...
Toyota part numbers

90118-WB160 - Auto transmission o-ring gasket
90118-WB669 - auto transmission drain plug gasket (same as oil drain plug gasket)
35330-WB001 - auto trans filter/strainer
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Old 10-29-2019, 11:22 AM   #9
soupking
 
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Quote:
Originally Posted by 91mustang View Post
If the transmission is sealed you don’t need to service the fluid.
Look at what the manual says, should be detailed in there.
I looked at the owner's manual again. There's no mention of transmission fluid in the maintenance section or anywhere else. It's like it doesn't exist.

I have the FZ fluid required, but there's perceptively no way to easily drain and fill it back up like the oil (which is listed in the manual along with wiper fluid).

...Strange.
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Old 12-18-2019, 02:00 PM   #10
91mustang
 
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According to a post I found in a scion site “It has no transmission dipstick. The Scion Ia has a sealed transmission. The Scion Scheduled Maintenance Owner's Manual only shows that the transmission fluid should be inspected at 30,000 mile intervals. How that's done is a question that only the dealership should answer.”
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Old 12-23-2019, 01:34 PM   #11
B.B._07
 
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Most sealed transmissions aren't really totally sealed as there has to be a way for the factory fill ATF to be added and the level to be checked. I've serviced a Mercedes 5G-Tronic (aka Chrysler NAG-1) sealed transmission which has a capped ATF dipstick tube that you need to take the cap off to refill and get the level checking tool (basically a dipstick with no cap at the end) to check the level. Some of the transmissions have a drain plug, some don't but it doesn't really matter since you need to drop the pan anyways to change the ATF filter. I would imagine a sealed '18 Yaris iA automatic has a similar service procedure. Some newer cars also have an oil level sensor in the engine oil and transmission oil pans that can be checked on the instrument cluster/touch screen or a dealer scan tool.
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Old 08-19-2020, 11:29 AM   #12
lorne
 
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I know that a later model is being talked about here. Mine is a 2007 AWD/4WD domestic Japanese model. The Toyota dealer told us that there is no filter in the transmission. Surprised me!
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Old 08-20-2020, 06:30 AM   #13
lorne
 
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Quote:
Originally Posted by Toolaholic View Post
I agree 1 year is too early but I have read Toyota w/s leaves a lot to be desired . My 2007 shifts so much better with amsoil fluid in the transaxle.
My 2007 has only ever had Toyota WS in it, and it shifts brilliantly at 166,000 Kms. Mind you, I think the Japanese NCP95 with the AHPNK suffix has a different transmission for the AWD, but I just don't know how different.

Today, Toyota told me that they recommend an AT drain every 50K Kms. That's only 31,000 miles or so, which seems a pretty short interval to me. But at least your ATF should be clean.
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Old 08-26-2020, 01:47 PM   #14
lorne
 
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As a follow up on my last post: the AT pan was pulled on my 2007, 1.3L 4WD Vitz today. These transmissions that nestle with a transfer case that shares the ATF with the AT do not have a filter — only two small magnets in the pan. This ex-rent-a-car with 167,000 Kms on it possibly had only one ATF drain in its history. And, that was at 144,000 Kms.

Today it was found that the pan was dirty with contaminants. This at least must partially explain why a previous 5 Litre drain 20 Kms later was showing black traces.

This service was precautionary, because I intend this vehicle to run flawlessly for years to come — even though it guzzles fuel. So, my humble advice is, if you own one of these models, pull the pan and change the Toyota ATF T-4 fluid if you have not been doing scheduled drains. If you don't intend to make the machine last — well just grind on.
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