I just did this job yesterday. I had the Rev C filter, which is shown two posts above.
Job was easy. I bought the VW tool a month or so from the site listed in one of the post. Opened drain plug, all my fluid came out. Then I found the fill tube was loose, removed it, cleaned it, and reinstalled it to correct torque.
I removed the battery to get to the filter. I did not have a 15/16" flex socket (I mean 24mm
). Besides the battery terminals need to be cleaned every once and a while.
I measured what came out 4.5L, put 5 back in, let car warm up to recommended temperatures on VAGcom, pulled adaptor and .5L came back out. Put drain plug back in. As others have said, as long as you can check the temperature, its Idiot proof, the fluid drains out the adaptor until the level is correct, then changes from a stream to a couple drops, and you know you are done.
Then I noticed I had a light for traction control and air bag on the dash. Put car back on ground, cleared all codes (had codes for at least steering assist and traction control). Took it out for a drive and lights went out. Checked again, No codes.
My wife called this morning, "Honey, the electric passenger seat will not go back up". It went down since I did the job because I rode in the Passenger seat last night. My Daughter always moves it all the way up and my head hits the roof, so I have to lower it before I can get into the car.
Any Ideas on how to make the seat work again? I will see if there are any codes once the get home today.
For those that are trying to figure out what this “VW liquid Gold” really is, it smells like hydraulic fluid to me, but it probably has something extra mixed in so you cannot use standard hydraulic fluid you buy at the farm store.