Has anyone done the 40K mile transmission fluid service on a TSI automatic transmission themselves and willing to give some details on the task? Dealer wants $389 just for that + $199 for the 40K oil and filter(s) service.
Yeah, it ain't fun. I looked into it and you will need to have the car up on a true lift since you have to run through gears to help fluid come out of the fill hole. I would take it to a specialty shop, as they will charge less.
Checked my warranty manual
DSG: change fluid and filter at 40k, 80k, and 120k
Non DSG Auto: Change fluid (no mention of filter) at 80k
What you describe as a process sounds similar to BMW, with no option to fill through a dipstick hole. For BMW:
Raise and level car.
Open drain plug and drain fluid, replace drain plug
Open fill plug and add fluid until it spills out of fill plug
Start engine, wait until fluid reaches op temp
Shift through P R N D slowly with engine still running and foot on the brake
Add more fluid until overflow out fill plug, replace fill plug
Again, this is BMW, there could be a similar but different procedure for VW.
I've done it on 4 jack stands (shops charged an arm and a leg) but it takes some planning, can get messy, and there is risk if you miss a step. Probably not for oil change only diy'ers
Had mine done with a filter change and pan swap (dented the original one) at 40k (Dealer informed me the 09G/AQ250 torque converter trans is recommended 80k), due to a faulty trans fluid temp sensor. Since the sensor is internal, they have to drop the pan to replace it so they do the service as part of the job. No issues after and shifting is smoother, though the temp sensor check was done due to a non-warranty issue where the higher reading requires more throttle input - paraphrasing here I'd have to dig up the paperwork to get the details. So if the new fluid or the new sensor made the difference I can't say, but things are happy.
Work was done at a dealership and covered under 3rd party warranty luckily in my case.