How to do tranny fluid drain & fill on a 2012 mazda6 when there's no dipstick? - Mazda 6 Forums : Mazda 6 Forum / Mazda Atenza Forum
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post #1 of 17 (permalink) Old 01-06-2014, 04:58 AM Thread Starter
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How to do tranny fluid drain & fill on a 2012 mazda6 when there's no dipstick?

So I searched around on the forums after having trouble finding the transmission fluid dipstick on my 2012 mazda6. Turns out newer year models don't have one.

So how exactly am I supposed to do a transmission fluid drain & fill when there's no dipstick to pour tranny fluid into after dumping the old fluid out? Or is there a fill-plug instead?

Or should I just start doing transmission fluid flushes? My 2012 only has about 41k miles on it, not sure if this is too late or not to begin doing flushes...especially when I have yet to change the transmission fluid at all yet!
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post #2 of 17 (permalink) Old 01-06-2014, 06:23 AM
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There are fill and drain plugs on the transmission. Drain is the lower bolt, fill is the upper bolt.

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post #3 of 17 (permalink) Old 01-06-2014, 11:25 AM
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Also, this will probably help:

http://forum.mazda6club.com/engine-d...ion-fluid.html

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SOLD: 1967 Chevy C10 Stepside
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post #4 of 17 (permalink) Old 01-06-2014, 11:34 AM
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I also found this...I was not aware of this, and not sure if it applies for 2012 as well, but worth a shot to look for it!

http://forum.mazda6club.com/3467545-post12.html

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post #5 of 17 (permalink) Old 01-06-2014, 03:48 PM
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This cuts off at 09, would be nice to have the complete 2nd Gen Application guide. It list the same trans for 1st Gen for both S and I (08 - 09).


This doesn't help the cause per say but I'll toss it in just the same.
http://www.mazdausa.com/MusaWeb/pdf/..._specs_MZ6.pdf

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post #6 of 17 (permalink) Old 01-06-2014, 04:45 PM Thread Starter
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Hi, thanks for all the info!

It seems that I may indeed have a little grey plastic dipstick held down by a bolt. It is way deep down in there though past the battery.

Also, I just talked to the dealership (stealership) and they said since I've already gone past the 30k mark without doing anything to the transmission fluid they want me to come in and check my transmission fluid and do a transmission flush ($239 +tax).

I've heard mixed opinions about tranny flushes. It seems that some people are convinced that we should not do flushes for risk of damaging the transmission while others say that we should do it and nowadays the risk of damaging our transmissions by flushing is very low.

Any thoughts or opinions on this? Should I go to the dealership and get the transmission flush for $239 + tax? I am still covered under the 5-year/60,000mile powertrain warranty so I'm not sure if doing my own transmission fluid changes will void it or not... :-/
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post #7 of 17 (permalink) Old 01-06-2014, 05:53 PM
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if you give them $239 for a flush...you are the chump they are hoping you are. don't fall for their shit.

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SOLD:1996 Miata
SOLD: 1967 Chevy C10 Stepside
SOLD: 2006 BCM MS6 GT #00584
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post #8 of 17 (permalink) Old 01-06-2014, 06:04 PM
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The DIY FLUSH at home is bad idea.
DIY drain and refill at home is OK.
Gripe w/paid Flush, is the workmanship and standards.

DIY FLUSH:
I've read where many member disconnect an ATX coolant line with the engine running and just let it pump out fluid till it stops. The issue here is there is NOTHING going back in to cool and lubricate. The return line on an ATX trasn is there to supply vital organs the lubricant they need to operate. Its not full line pressure but it is required. This is like pulling an artery from your chest and letting you bleed out. Not good. Fluids must be going back in to the return line!

DIY Drain:
At home you CAN dump the fluid via the plug. And you can refill. The issue here the verifying its full. An ATX must be checked while running, warm, in park. The mini dipstick is NOT friendly for this. Being low a pint is not good but would likely be OK. Being low a full qt is another issue.
It has a plug and filler. Its tedious but it can be done.

An option is this:
Look into buying the dip-stick and tube from the early models. Its a good chance they bolt up and if the fluid level comes out correct, your set. Mine has the AW6A-EL for the V6. They carried it into the later years. It most likely fits right on the trans using the same bolts & orings.

Gripe w/paid Flush:
Some shops mix the fluids on the fly from base stock adding the **required** additives and hopefully the correct amount. I personally don't trust them. But that's just me.
IMO - if they won't or can't explain their process in detail about what they intend to do, walk away. Ask probing questions. Its OK to do this!

Lastly; the issues with any flush/fill is this: if the trans fluid is varnished, the loss of that varnish can cause an aged transmission to fail and no longer operate as it did. Varnish is a film. It fills voids and gaps. ATF if extremely high in detergent and fresh ATF dissolves varnish. In short if your fluid is yellow, you could be in trouble with a fluid replacement where letting it go it may in fact go a whole nother year before death overcomes it.

JMO - use it as you wish...

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post #9 of 17 (permalink) Old 01-06-2014, 06:10 PM
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Quote:
Originally Posted by pa2ad0x View Post

Should I go to the dealership and get the transmission flush for $239 + tax?
Buy a dip-stick, tube and o-ring. $60 or cheaper for used. Hint - find out what trans you have and see if it is also used in earlier years.

See above post!!

Frankly I can't find an application chart on the 2012 to confirm what trans your car has. An oil chart but not like the chart I found for the early cars. http://www.carquestprofessionals.com...%206.10.13.pdf

For 3.7L owners - read this: (google dipstick tube AW6A-EL)
http://www.originalanleitungen.de/pdfs/HAY61043.pdf

ALL internal parts but No DipStick/tube asm. Likely wrecking yard or dealer item only.

See this section:
23.9 The fill plug on 2008 and earlier
models with the AW6A-EL is located on
the left side of the transaxle (air filter
housing must be removed for access)

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Last edited by Final Impact; 01-06-2014 at 06:40 PM.
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post #10 of 17 (permalink) Old 01-06-2014, 07:54 PM Thread Starter
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Hi everyone thank you so much for all of the detailed responses. It seems that a majority of you are in favor of getting your own tranny fluid and changing it yourself using the drain&fill method!

I will take your recommendation and try to find the longer dipstick and tube part from older year models (I'm assuming from any 2nd gen Mazda6 from '09-11 will install ok on my 2012 without need for modification)? And which parts websites do you recommend ordering the parts from? Any part #'s in specific you can give me? I tried searching for the name of the 5-speed transmission used in my '12 mazda6 with the 2.5 I4 but no luck - anyone know what transmission we use? Is it the same as the V6 (AW6A-EL)?

Also, what are your opinions on changing the transmission filter? I heard in 2nd gen models it is just a screen built into the transmission and cannot be changed out? Or can it? And if so is it recommended to change out the transmission filter on '10-12 models?

UPDATE: So I found the parts on jimellismazdaparts.com (link http://www.jimellismazdaparts.com/sh...category=20243

Parts are listed under 2010 Transmission Parts as "Tube, Oil Level" and "Gauge, Oil Level" which I assume are the dipstick and tube for the transmission. Funny thing is if you look for these parts on the 2011-2012 year models they don't exist lol. I guess Mazda really doesn't want us doing our own transmission fluid maintenance.

Btw what is verdict on changing the transmission filter. I think I see it listed as "Strainer, Oil" on the list of transmission parts going for about $80. Is it worth it to change it??

Last edited by pa2ad0x; 01-06-2014 at 08:48 PM.
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