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Discussion Starter · #1 ·
DIY Drain/Refill Fluid on 09A 5-Speed Tiptronic Transmission
(This is simply a guide. Perform the procedures at your own risk/responsibility.)
1. Raise the car with a jack. Remove the 24mm (15/16 inch socket will work, just don’t strip it) drain plug and drain out the fluid (approximately 3 quarts or 2.84 liters came out of my car)

2. Use a new drain plug + washer and replace it. (new parts required only sometimes according to wear and tear)


3. Remove red tamper seal on fill plug and remove the plug. Then suspend a funnel from the top of the hood with a hose running into the hole. Pour in 3 quarts of Mercon V Fluid. I used Mobil 1 Synthetic Mercon V ATF. It was about $7 a quart from Advance Auto Parts. According to Coolvdub, this fluid has worked equal to if not better than the OEM fluid’s performance for a fraction of the price.


There is a wire loom that is hooked onto a metal bracket. You can pop it out of the bracket to get better access to the cap. It is circled in the picture in yellow.


Once you take the red tamper protector off, this is the black cap that comes out. As you can see, I had to break the sides quite a bit to get a flat screw driver in to pry it off. 60,000 miles of heat made it become stuck on pretty tight.











This is the funnel that I used. The tip of the funnel has a ½ inch diameter. This just fits into the filling hole. This means that you could use a few feet of ¾ inch hose and plug one end into the filling hole and one end into the funnel. Then all you would have to do is suspend the funnel a few feet above the engine bay right under the hood and it would do the same thing that the $250 dollar VAG 1924 tool does.
4. Lower the car back down off the jack. While keep all filling apparatus in place, hook up VAG-COM to the car and start the engine. Move the gear selector through each position for about 10 seconds.
5. [Select]
[02 - Auto Trans]
[Meas. Blocks - 08]
Set group to "004"
[Go!]
The value in field 1 should be ATF temp in °C.
6. When the ATF transmission reaches around 40°C, place the pan under the check plug. Take the plug out. If a little bit of fluid drips out, the level is correct. If nothing comes out, add a little more until it overflows to a drip. Replace the check plug. (for this step, use of a shallow drain pan allows you to not have to jack up a side of the car and get the most accurate fill)


7. Replace the fill plug and red tamper cap. (If you broke the red tamper cap as I did, it’s cool. The black fill plug will stay on without.)
8. Take the car out for a test drive. According to Coolvdub on VWVortex who practices this, overfilling the transmission from a ¼ to a ½ quart makes it shift smoother in his opinion.
9. I did this as well. Even though I drained out 3 quarts or 2.84 quarts. I put back 3.5 quarts or 3.31 liters into the transmission. After reading the threads on the forum, when people followed the Bentley repair manual procedures to the letter, the over flow plug would start dripping fluid at about 2.75 quarts or 2.60 liters. However, after driving the car, they would get groaning noises. When they would add in about half a quart of fluid, the car would be happy. Therefore, 3 quarts is the baseline figure plus ¼ to ½ quart of fluid.
10. I can attribute this error to the fact that there haven’t been enough transmission failures for VW to revise the procedures for draining and refilling the transmission. Think about how they revised the 105k timing belt to a 60k interval now.
Credit to Don aka Coolvdub for taking some of the pictures and verifying the steps and instructions of the procedure via email to me
 

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When checking the fluid level at the correct temperature, the procedure in ELSA says that you have to have the engine running, select every gear (R, D, N , 3, 2) back and forth) to complete fill the internal transmission galeries, and then put again in park and check the level, failure to do so can result in underfilling the tranny, I did the correct procedure as ELSA and haven't had any issues, the first time that I just overfilled the transmission with 1/2 a quart more the tranny slip in the 2nd to 3rd gear change, so the problem appear to be that the Bentley procedure don't mention this resulting in fluid level too low.
 

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Discussion Starter · #3 ·
That is what I have heard from other people as well. You are correct. 3 quarts of fluid is the baseline amount to fill after a fluid drain and most people add about half a quart to this to make the transmission happy and compensate for the variables that you mentioned.
 

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Discussion Starter · #5 ·
I think 20k is really early. The oem fluid is synthetic. I would change it around 35-40k. I would of done mine earlier than 60k if I had known that it was possible. Up until researching it and talking to a friend on the forums, I had been believing the dealership's lies that the transmission is sealed and the fluid is filled for a lifetime. Also one think to note, a drain/refill replaces only about half of the transmission's fluid capacity. I am going to do another one in a few months so everything get changed. Then I will stick with 25-30k intervals.
 

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Re: (Fantomasz)

Just a note that the overfill thing is not an original idea from me. I read it on the Vortex and as soon as I can find that post I will make sure that person gets the credit for it. I have just used it and found it to work for me. By the way good DYI write up with pictures that are working AvantGTI7
 

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Re: DIY Drain/Refill on 09A Tiptronic Transmission (Fantomasz)

Fantomasz,
That fluid is not the right fluid for the transmission we are talking about. Our transmission is made by Jatco.
 

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Discussion Starter · #11 ·
He has used the fluid for over 70k on his transmission without any problems. This is how he knows. Mercon V should be fine as a fluid as long we are talking about the JATCO 09A 5 speed tiptronic transmission found in VWs.
 

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Re: DIY Drain/Refill on 09A Tiptronic Transmission (AvantGTI7)

ok,but one 70k interval is not sufficient
maybe next 10 guys will burn their tranny in 5k
not a single word about audi,vw
im not saying this is bad fluid but why this one,not the other?
 

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Re: DIY Drain/Refill on 09A Tiptronic Transmission (Fantomasz)

Fantomasz,
How I found out was doing a lot of research on the internet. I discovered that a derivative of the Jatco 5 speed transaxle was used by Land Rover as well as Mazda in the MPV platform here in the U.S. So I called up a Mazda dealer and asked what fluid was supposed to go in the Auto transaxle for the MPV, I was told Mercon V.
I decided to take one for the team so to speak and switched over to this fluid. I have not had one single problem with it so far. You stated that maybe I was leading other people down a bad path, I have documented my use of the fluid and advised people to use the OEM fluid if it makes them feel better. In my personal experience with this fluid, it has worked far superior to the OEM fluid and has never come out brown and murky during a fluid change like the super expensive OEM fluid did. I also had transmission problems from 40-45k miles on my original tranny with OEM fluid, while it did last 200k miles before failing. I personally do not see any benefit to using the OEM fluid when a less expensive fluid has given me far superior cost and performance benefits.
 

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Re: DIY Drain/Refill on 09A Tiptronic Transmission (coolvdub)

cool http://****************.com/smile/emthup.gif
I have 20k on my GTI so You think it's good time to switch to Mercon V before any problems show up?
Before OEM fluid turn into hot chocolate


Modified by Fantomasz at 12:50 AM 3-24-2008
 

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Re: DIY Drain/Refill on 09A Tiptronic Transmission (Fantomasz)

The OEM fluid for the 01m 4 SPEED is made by Pentosin, BUT the OEM fluid for the Jatco 5 speed tip is made by FEBI (G052 990 A2)
 

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Re: DIY Drain/Refill on 09A Tiptronic Transmission (carlosabh)

carlosabh,
Thanks for the info on who manufactures the 09A fluid, knowledge is always a good thing.
 

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Re: DIY Drain/Refill on 09A Tiptronic Transmission (coolvdub)

I just receive short reply from Mobil.I ask them for transmission fluid for my car.They reply with this.

"Mobil does not have a product that will meet your vehicle transmission fluid requirement"
 

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Re: DIY Drain/Refill on 09A Tiptronic Transmission (Fantomasz)

Thanks for the great post and pic's. I just purchased an 03 Jetta 1.8 w/78k miles and it had a bad 3-4 shift. It would almost overrev the motor. I got different opionions from new valve body ($2500) to is the oil dirty or low. I put a 10oz red bottle of Lubeguard. I took if for a drive the next day and it did the same thing. It sat over the weekend and I took it to a VW shop. It shifted fine all the way in (nine miles). They were the ones who recommended the valve body. I still believed the oil was bad, so I just changed it as mentioned on this post and hope for positive results. My test drive shifted fine. The question I have is it was mentioned the drain tube starts to drip at about 2-3/4 ltrs of oil, so are you just putting in 3 ltrs + 1/4-1/2 liter more without checking it? It makes sense if we are overfilling a little the drain plug would drain it back out. I measured the amount that came out and it was 2-3 ounces less than 3 liters, so I must have been low since I added 10oz of lubeguard. I refilled with 3 liters + 4 ounces. Am I on the right path, I have not yet checked the drain plug since I do not want to loose any if I put in a little extra. I do not have a VAG-COM, but I do have a laser temp gun and can approximate temp from case temp and am guessing the oil will be approx 20 degrees warmer.
 
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