VW Aisin 09G Automatic Transmission Service, Part2

[@user-slyfox88]

Thank you so much, my friend, this was so helpful- clearly explained and well-filmed. I especially like how you refer to us as friends, and we are- friends help each other! The explanation of internal temperature via the computer vs pan temperature using an IR thermometer was especially helpful. One thing that might help others- I did this fluid change on my 2016 Tiguan that does not have an upper fill hole, requiring us to fill it through the drain plug. I was tempted to buy the Amazon fitting that threads into that, but I found that the thread is M10x1mm- the same as a metric "bubble flare" brake line thread. So I used a short length of brake line, threaded the flared end into the drain hole, finger-tightened it, then attached the hose from my fluid pump to the other end, and filling it was as easy as can be. Thanks again, all the best, Peter!

[@boomerguy9935]

When I bought my 2008 VW Rabbit 2.5 with this 09G transmission made by Aisin, I did not know when the last ATF fluid and filter service was done or how much fluid was in it. Like you, I started from scratch and did all the steps you did but with the IR Gun. I intentionally overfilled the system to make sure that I would end up with the correct amount in it when finished. I ended up with 2.5 quarts after measuring the difference between the amount added and drained. The shifting improved immediately. From that point on, when I drain the fluid I measure it to see if it is still 2.5 quarts and it always is. This is the amount I pump back in. Since I am confident with this quantity I also do this with the transmission cold. I do make sure to start the car, let it warm up and then hold the brake while I run it through all the gears before I drive it. Instead of changing the fluid again in two weeks, I changed at 15K mile intervals for two more services. Since then, I change the fluid at 30K mile intervals and I do not change the filter. The sump pan, magnets and original filter were all clean on my initial service, so I replaced the filter with a new one and I now leave it in there. I have spoken to several mechanics and researched a lot of websites to find that as long as the transmission is not abused and the services are performed AT LEAST at 30K mile intervals with a premium full synthetic ATF which meets the VW spec, the filter will not need to be changed. My car has 165K miles on it and it shifts beautifully.....much better than when I bought it. Thank you for a very good and detailed video!

[@hareman2959]

Thanks for your thorough video. I just performed this service on my 2011. Turns out my transmission had a fill hole right next to the sensor in which you used to fill. Took just over 3.5 Litres of fluid.

[@joy2406]

The easy and simple way very well explained. Its very good that you showed the front fill technique instead of filling from way below .Many many thanks for uploading greatly appreciated.

[@LifeWithBry.]

You do a great job explaining the process. Thanks

[@arnietwo11]

Well done, i did a tran fluid change on my BMW X5, and as it has a plastic tran sump i changed the sump and 20 bolts aswell. I was a bit aprehensive filling it with engine running and sump plug out !! But as you showed us, there is a level tube !!

[@2esc2esc]

Top video you clarified a few things for me.

[@PaulMcQueensailinghome]

Many thanks for this, you are a wonderful teacher!

[@proudtexan5513]

Great detailed trans fluid/filter job!! Peter, just FYI, if you want to save your customers money with rubber bushings, boots, etc, apply AT205 Re-Seal lubricant using a old Windex or spray bottle to apply it. You can also poor it in engine crankcase with oil and it will many times stop rear main seal from leaking if the leak is not too bad..Have a great day, my friend. Harvey Shaner from SATX!

[@corybureau4124]

i think its the vacuum pump. they're a commonly failed part on the 2.5l motor.

[@Cragmontster]

Great video and very helpful, thank you!!

[@zlatan1975]

very detailed video ! Thank you !

[@HumbleBearcat]

I just replaced the ATF & the coolant today on our 2010 Golf 2.5L with 150,888 miles. I decided to just do a drain & fill because I am switching to an aftermarket ATF: Liqui Loly 1800. If it runs well then, I might drop the pan and change the filter next time. I put the Golf on a Rhino ramp, so the drain was sloped towards the drain hole. Luckily my car has a fill plug that uses a T-55 torque bit which I bought from Home Depot for $4.5. 4 qts/3.8L came out; I think dealer overfilled it. I've done extensive research, the typical drain & fill without removing the pan is less than 3L. So I only bought 3L and put them all in. Foreturnately, the car drives better and even more smoother. It seems like the car starts out stronger on a dead stop with no slippage. The 2nd to 1st downshifts are less obtrusive and other shifts are nearly imperceptible. In all, I highly recommend Liqui Moly 1800 for this transmission and will be using it again for the future. FYI, we are the original owners and the dealer replaced just the fluid at 50K & 100K. Thanks for the video.

[@Sen-ys2qo]

Thanks, this was very helpful! What diameter hose did you use to add fluid through the electric connector? Thanks

[@jorgegarzapersonal544]

Excellent videos, I saw many videos for this work but yours are awesome, congrats! On the other hand, last weekend I did this procedure to my Jetta 2010 2.5l with 09G transmission, my car has aprox. 105k miles (173k kilometers). It definitely improved the shifts, i am really happy for the results, unfortunately today I lied down under my car in order to make a double check to my weekend work and there is a fluid leakage that I am pretty sure that comes from the electronic 8-pin connector which I pulled out (just like you) previously to refill the transmission during the maintenance I did. I already detached again, cleaned and retorqued the bolt without success. The fluid still leaking after a couple of miles. I already search the o-ring from the 8-pin connector as spare part but it seems that comes only with the harness plug as an assembly and not separately. In your experience, what do you recommend me to solve the problem? I was thinking to use some high temp silicone to seal the plug but if I want to make another flush to the transmission on the future this plug would be sitted there forever due to the silicone. Please tell me your thoughts. Thank you very much. Best regards from Mexico!

[@moemara4800]

You used Aisin T4 ?

[@aborntexan]

If you don't have a scanner that can read transmission fluid temperature is there another method to know the temp? Would an infrared thermometer on the pan be accurate?

[@hareman2959]

I did it just now with a Infrared Thermometer and once the fluid hit 42 degrees celcius I removed the plug and the extra fluid came out and once its slows to a trickle or drip I reinstalled the plug. Worked perfect. My 2011 Golf 2.5 is now shifting like its brand new.

[@attocoulomb]

If you use the IR thermometer, you should shoot for the low end of the temperature range. I have seen a report that the internal sensor temperature (via scanner) was ~10-12 degrees C higher than the IR temperature of the pan exterior.

[@jasonlam7486]

Looks like vacuum pump might be leaking oil

[@boomerguy9935]

Nice catch, but that is a separate topic. I deleted my vacuum pump several years ago because it is not necessary for this non-turbo engine. I have no leaks and no parasitic horsepower drain on the engine. There are several ways to do this and I chose the least expensive and simplest method from one of the VW forums.

[@2esc2esc]

Yeah he mentions that in the part 1 video.

[@attocoulomb]

Why don't you just pump the fluid in at the drain/fill port, like the VW procedure calls out? It really isn't difficult. DIY'ers do it every day.

[@2esc2esc]

They might but I will be using this method less chance of spills and not fighting against gravity. It's up to the person doing the job to make their decisions.