Procedure with pictures, 3.5SE CVT fluid change - Nissan Forums : Nissan Forum
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post #1 of 12 Old 10-28-2009, 02:17 AM Thread Starter
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Procedure with pictures, 3.5SE CVT fluid change

Tools/supplies Needed:
Pliers
10mm Allen Wrench, T-handle
1.5 ft. of clear flexible tubing (1 in. diameter)
Container marked of f at 1 qt. (did this with a measuring cup and sharpie marker)
Collection pan to collect the used transmission fluid
Flat Head Screwdriver
Transmission Fluid Funnel

Experience needed: I would say some experience working on cars, at least be able to do your own oil changes before you try to do this. You will also need one person around to help.



Step 1: Drive car around for about 10 minutes to warm everything up. Park it, run through all the gears (P, R, N, D, and then back to P) and leave the engine running. Pull the transmission dip stick out, wipe clean, insert back in but rotate 180 degrees and push all the way down. Pull back out and check the level (remember where it is so you can refill back to same location, should be at the second notch). This is also where you will add transmission fluid.



Step 2: Raise the front end of the vehicle somehow. I have small ramps I use for changing my oil so I drove up onto these. Turn off the car.
Step 3. With the dip stick pulled out. Place a collection pan underneath the transmission drain plug. Using the hex screwdriver/tool, unscrew the drain plug. Notice that it doesn’t take much force to unscrew this so don’t over tighten when putting back on. Allow all of the fluid to drain, I left it to drain for about 15 min.





Step 4. Screw the drain plug back on. I think you can replace the o-ring on the drain plug but I didn’t do this.

Step 5. Measure how much fluid you drained out by using your container that you marked off at 1 qt. I drain roughly 4.5 qts. Add the same amount of fluid you took out back into the transmission through the recharging pipe (same place you pulled the dip stick out) using your funnel.



Step 6. Remove the wheel well splash guards from the driver’s side wheel (be careful with the tabs holding these on, easy to break). Take your time a pry them off slowly with a flat head screw driver. Remove to reveal the transmission fluid inlet port (where fluid comes in from the radiator).



Step 7. Using your pliers, squeeze and slide off the hose clamp holding the tube onto the inlet port.




Step 8. Place the tube you remove into your 1in. diameter clear plastic tube. Direct it into your container marked at 1 qt.

Step 9. Have a friend start your car. Allow it to run until you have removed 1 qt. of fluid and then turn the car off.



Step 10. Add a qt. of new fluid back into the transmission (to replace the qt. you flushed out).

Step 11. Repeat steps 9 and 10 until you’ve collected a replaced roughly 6 qts. of fluid. It start to get clean around 5 qts. I did an extra one for good measure.

Step 12. Reconnect your hose to the transmission inlet port and using your pliers, squeeze the hose clamp and slide it back onto the hose. This is the hardest part of the whole thing, trying the get that stupid clamp back on.

Step 13. Start the car and let it run for a minute. Go around and check for any leaks.

Step 14. Lower the car down. Run it back through all the gears and check the fluid level just as before. Adjust the fluid as needed.

Step 15. Place the splash guards back on and that’s it. You are done.

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2007 Nissan Altima 3.5 SE w/ CVT Super Black
27% tint all around
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Stillen Cat-back Exhaust

2006 Nissan 350Z 6-Speed Manual Super Black

Last edited by dagreek; 10-29-2009 at 12:42 AM.
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post #2 of 12 Old 10-28-2009, 02:36 AM
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nice write up. how do you like those triple-treds?
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post #3 of 12 Old 10-28-2009, 02:54 AM
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Roughly how long does it take to pump out one quart? That fluid looks pretty nasty. I'm approaching 30k. I'm gonna go ahead and change fluid then. This doesn't sound hard at all.
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post #4 of 12 Old 10-28-2009, 04:00 AM Thread Starter
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About 7 seconds to pump out a qt. of fluid so not long at all. Overall i like the triple treads, but you feel a lot of road vibrations with them. I came off of S-drives which were very smooth and quiet but bad tread life. These are definitely not as soft of a tire, but they do come with a much longer tread life. Good dry traction and excellent in the rain, even the heavy stuff ive had zero problems with traction.



2007 Nissan Altima 3.5 SE w/ CVT Super Black
27% tint all around
K&N drop in filter
Stillen Cat-back Exhaust

2006 Nissan 350Z 6-Speed Manual Super Black
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post #5 of 12 Old 10-28-2009, 04:16 AM
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Nice job, thanks for the effort. I think you are the first here to do this job.

So, you used 11 qts of fluid for the swap? (4.5 on the drain, 6 more on the flush)

I'm due in another 19k (2nd tranny will be at 60k), so probably around mid-February.

Al Jones
'08 2.5SL/CVT, 365K & counting
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post #6 of 12 Old 10-28-2009, 04:44 AM
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Quote:
Originally Posted by dagreek View Post
About 7 seconds to pump out a qt. of fluid so not long at all. Overall i like the triple treads, but you feel a lot of road vibrations with them. I came off of S-drives which were very smooth and quiet but bad tread life. These are definitely not as soft of a tire, but they do come with a much longer tread life. Good dry traction and excellent in the rain, even the heavy stuff ive had zero problems with traction.
Yea they were designed to give you all that traction, but they dont ride as smooth. That was the number one complaint I got when selling them, but most people didnt mind because of how good they are in all weather. I was suprised how good they are in the snow.
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post #7 of 12 Old 10-28-2009, 03:18 PM
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Cool CVT fluid change

Thanks dagreek ! That was a great job by you.
Is that a filter kind of thing where the inlet port was hooked ?

Again ! Great job!

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post #8 of 12 Old 10-28-2009, 04:01 PM
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I've never changed the fluid in any car I've owned with an auto trans. I know you can do it, but the issue I have is that the fluid in the torque converter is not drained unless you pump it out. The procedure described here is pretty close to the procedure in the shop manual, except that Nissan wants you to do the complete fluid change with the engine running. They (Nissan) state that it will take about 50% "extra" fluid to flush completely. Maybe that takes care of the torque converter- I don't know. But the fluid in an auto trans lasts so long, it's not a huge savings to do it yourself, even though the dealer will "overcharge" for the CVT fluid.

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post #9 of 12 Old 10-28-2009, 04:25 PM
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Quote:
Originally Posted by dagreek View Post
I see the clear tube, why did you hook the red hose to the inlet port and what's on the other end of it?

2008 Altima 2.5S CVT | Precision Gray | 46K miles
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post #10 of 12 Old 10-28-2009, 06:27 PM
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Nice job. If you want, I'll add this to the FAQ Forum.
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post #11 of 12 Old 10-29-2009, 12:40 AM Thread Starter
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Sure, you can add it to the FAQ Forum. Bikerider, that hose i put on the inlet just in case fluid came out of it, but none did so it isnt needed, i was just being cautious.

Ormand, i basically did do it with the car running, i just turned the car off after each qt. to keep up with the pump.



2007 Nissan Altima 3.5 SE w/ CVT Super Black
27% tint all around
K&N drop in filter
Stillen Cat-back Exhaust

2006 Nissan 350Z 6-Speed Manual Super Black
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post #12 of 12 Old 08-09-2017, 01:52 AM
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Can someone please update this with pictures. I'm trying to do this on my 09 with 2.5. full flush since my car was flooded. I hate it when people use these stupid ignorant hosting websites. Just upload it directly on the forum so information won't be lost.
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