DSG service at 106500 miles

Beewi

Well-known member
Joined
Jul 20, 2024
Location
Commonwealth of Kentucky
TDI
2013 Jetta Sportwagen
I finally got my ramps and tools together to tackle the DSG fluid and filter on my 2013 JSW. As suggested here, I opted for the top fill method with the front wheels up, and figured I would end up pouring in 5 liters of new oil in and calling it good. I was afraid that the prior three owners hadn't done any transmission services at all since the Carfax I had didn't show it, and neither of the VW dealerships it went to had record of it. (Dieselgate buyback was at 39000 miles so you know it missed that one...) These are my observation as someone who hasn't done this before.

Aside from the helpful oil plug port a prior owner cut into the splash guard, I also noticed that the 14 mm Allen plug in the transmission took a lot to break loose. I could believe it never had been opened before, but the fluid I got out makes me wonder. It was a dark amber color with no smell at all. I got a little under a liter when the 14 mm plug came out, followed by a little over 4 L when the snorkel was removed. Probably just under 5 L total in the drain pan I etched liter marks on. My understanding was that 4.5-5 liters is a common amount to see when the transmission was serviced before, and that the factory fill typically dumps out a greater volume.

I didn't realize that the snorkel to the airbox comes in 3 pieces and all them have to come out to get the airbox out of the way, so that was a delay. I also needed a pair of vice grips and a second set of pliers to get the compression fitting that holds the intake air line to the filter housing off and on again, and the 5mm Allen bolt holding the airbox down was corroded to the point of picking away rust so my bit would go into it. The biggest surprise to me, in accessing the DSG filter, was how hard it was to get the battery tray out. The corner nearest the headlight seemed to get hung up on the wiring coming down of the fuse box, and was about as bad going back in.

The filter housing was covered in some very fine, black, fluffy-burnt-looking stuff, so that had to be wiped away. Removing the housing, the filter element was gray, and any printing on it was long gone. The old O ring i pulled off the housing was in good shape and still springy. The new filter pushed into place, and the new O ring snugged into the grove on the housing nicely.

Adding the fluid was tedious but easier than a bottom fill. My flow tool funnel has a seep where the funnel joins the black cap, so there was definitely some dripping into the bay. But the fluid went in. In the future I'll take the advice to warm my oil in a pot of hot water first. 50F oil goes slow. The fresh oil (liquid moly 8100) was the color of honey, and stank. My car will probably smell like it for a few weeks, and I expect to get the burning version of the smell once I drive it somewhere.

Reinstalling the filter housing was nerve-wracking because I have read horror stories of people cracking them or shops breaking them with the ungadunga gun. But after hand tightening, I torqued to 25 Nm and got a click, so here's hoping it's sealed. All that was left was pouring the old oil into the new bottles for disposal.

Ran it slowly through the gears twice before backing down the ramps and took it fifty yards or so back to my driveway (borrowed the neighbors because his is flat) with no dash lights. Hopefully there won't be any drips or awful noises any time soon, and the seals are good. Will these cars throw warnings for low transmission fluid levels? This stuff always makes me paranoid.
 

RallyDriver

Member
Joined
Jul 23, 2024
Location
Ontario
TDI
2013 Golf Sport Wagon Highline TDI
Hello Beewi

I was wondering if you had any issues with the transmission after doing the DSG fluid and filter change on your 2013 JSW, and what color the old fluid was after your drained it?

I don't think the DSG fluid changes have been done on my 21013 JSW either and it just turned 100,000 miles, so I'm contemplating doing the fluid and filter also. But some mechanics advise not to change the transmission fluid if the past services haven't been done?
 

Beewi

Well-known member
Joined
Jul 20, 2024
Location
Commonwealth of Kentucky
TDI
2013 Jetta Sportwagen
It's been about a week since I did the service. My wife said she didn't hear, feel, or smell anything odd when she drove to the next town over to run errands, and today I didn't hear anything or feel hesitation. The car feels the same. I could convince myself that it shifts more smoothly, but it was already smooth and it's probably just placebo effect.

I did get a couple wiffs of liquimoly 8100 when I came to a red light, but I'll be smelling that another couple of weeks, until the stink additive breaks down.

My old stuff was a dark amber color. Definitely not black. Think like a runny molasses (brown molasses not black strap). My biggest concern now is that in 5000 miles I may get a leak at the filter housing o ring. Hopefully the made-in Germany O rings are still good.

The not changing transmission fluid is a wives tale. It probably comes from a few things:

1) people don't tend to change the fluid until the transmission is already damaged by it and doing spooky things, and the failure after the change was going to happen anyway.
2) on old transmissions lubricated with fossil oil instead of synthetic, the new synthetic stuff used in the change could dislodge old deposits that were holding it together.
3) Flushes. Blasting the guts of an old transmission isn't good. Drain and fill.

I say just do the change. I saved about $380 in shop labor, and while 40k miles is likely a very conservative interval, it needs to be done. There are some reports on this forum of cars going to like 165k before their first service without grenading, but I'm sure those DSGs will have a shorter total life than one serviced on time.
 
Last edited:

lemoncurd

Veteran Member
Joined
May 24, 2019
Location
Eastern CT
TDI
2013 CJAA GTB2266
Hello Beewi

I was wondering if you had any issues with the transmission after doing the DSG fluid and filter change on your 2013 JSW, and what color the old fluid was after your drained it?

I don't think the DSG fluid changes have been done on my 21013 JSW either and it just turned 100,000 miles, so I'm contemplating doing the fluid and filter also. But some mechanics advise not to change the transmission fluid if the past services haven't been done?
change it.

CJAA with DSG at 259k miles checking in here. change the damn fluid.

idk why people DONT change it. it is a SERVICE ITEM. change it!
 

calimustang

Veteran Member
Joined
May 17, 2010
Location
Central FL
TDI
2011 JSW DSG (buyback, RIP), 2014 JSW TDI, 2015 Passat TDI, 2013 Jetta TDI.
Hello Beewi

I was wondering if you had any issues with the transmission after doing the DSG fluid and filter change on your 2013 JSW, and what color the old fluid was after your drained it?

I don't think the DSG fluid changes have been done on my 21013 JSW either and it just turned 100,000 miles, so I'm contemplating doing the fluid and filter also. But some mechanics advise not to change the transmission fluid if the past services haven't been done?
do NOT listen to those idiots who called themselves mechanics, they obviously have no idea what the DSG are. Mechatronic unit are the main concern... old fluids can cause the Mechatronic unit to act out and kiss your M-unit good bye. that alone is $1000 plus labor and who knows what else.

M-unit alone:

https://www.google.com/search?q=02E325025AL

DSG link below are best explained:


therefore, do NOT wait. if you are unsure, do it and get it over with just like the timing belt. people are unsure of the last timing belt service, do it ASAP.
 

2012jsw

Veteran Member
Joined
Nov 20, 2020
Location
Socal
TDI
2012 jsw, 2010 jsw
Hello Beewi

I was wondering if you had any issues with the transmission after doing the DSG fluid and filter change on your 2013 JSW, and what color the old fluid was after your drained it?

I don't think the DSG fluid changes have been done on my 21013 JSW either and it just turned 100,000 miles, so I'm contemplating doing the fluid and filter also. But some mechanics advise not to change the transmission fluid if the past services haven't been done?
I think what He is referring to is the 90s era thought process that if you didn’t keep up on your fluid changes and the fluid was burnt, you were already screwed and changing it would actually hurt it more…that’s referring to the friction bands in older style auto transmissions.
 

Nuje

Top Post Dawg
Joined
Feb 11, 2005
Location
Island near Vancouver
TDI
2002 Golf 6MT; 2015 Sportwagen 6MT; 2016 A3 e-tron 6DSG
...I figured I would end up pouring in 5 liters of new oil in and calling it good
For a fluid level that is so finicky (it would seem) that VW wants you to only set the level when it's between 35-45°C (~100°F), "5L and calling it good" is a little less precise than I would want. I know your drain showed roughly 5L came out judging from the gradations on the catch basin, but yikes - that's not exactly precise either.

I would pour what came out into 1L bottles to confirm the approximations *before* I refilled the transmission.
 

Beewi

Well-known member
Joined
Jul 20, 2024
Location
Commonwealth of Kentucky
TDI
2013 Jetta Sportwagen
It actually isn't that finicky, based on the last decade+ of home mechanics reporting in. VW's approved method is for guaranteeing that the fluid level is correct, even if serious losses or overfill happened before the service. It 100% will result in the right fill, and is the right choice for a pro selling this service, but is not strictly necessary.

Most people that I see that have done the full level setting and drain procedures all say the same thing. They added 6L from the kit they got, ran the level set, pulled the exterior plug, and drained and excess of 1-1.2 L of fluid. It was someone on this forum or VW vortex that found the factor fill spec was 6.5 L, with around 1.5-2L expected to remain inside the guts of the transmission during any given service. People also report no difference in drained fluid with a level car vs one with its nose up.

I'd also point out that you can't really use the bottles the fluid is sold in for measurement. They hold a liter, but there is quite a bit of extra head space in the bottles and no fill mark to my knowledge. I marked my drain pan by weighing out 500 g pours of water, adding them to the pan on a level surface, and scoring lines at the fluid level. This gave me 0.5L marks.
 

turbodieseldyke

Top Post Dawg
Joined
Jun 6, 2010
Location
Free Mustache Rides
TDI
Big ol' honkin' tdis
I'd also point out that you can't really use the bottles the fluid is sold in for measurement. They hold a liter, but there is quite a bit of extra head space in the bottles and no fill mark to my knowledge.
If they have a transparent window up the side, you can make a mark on each jug. Or you can weigh them all, before and after.
 

Beewi

Well-known member
Joined
Jul 20, 2024
Location
Commonwealth of Kentucky
TDI
2013 Jetta Sportwagen
True. Though at that point I'd probably just tare a scale with the empty pan and weigh it that way. Either way, it's not like anyone's busting out class A glassware to tell the difference between 4 and 4.5 L. That's bulk measurement.
 

BarnyardsTDI

Veteran Member
Joined
Oct 28, 2010
Location
Sacramento California
TDI
2010 Golf w/DSG, Malone Stage 2 (all emissions intact), HID's, Sunroof, Dynaudio, NAV
I've done all my own DSG services since the car was new (June 2010), I now have 245,700 miles on it. I've done it the factory way and used VCDS to check trans fluid temp. Never had an issue. ID parts has great vids on how to do the DSG service. Transmission still shifts great. Mechatronics unit gets a little cranky when it's really cold and has sat for a few days but that's about it. The cost of DSG fluid and a filter every 40k miles is really not that much in the grand scheme. I used Rowe DSG fluid this last time in place of OEW VW fluid. Seems fine to me.
 

SkiBumJH

Well-known member
Joined
May 27, 2016
Location
Jackson, Wyoming
TDI
2009 JSW, sold back 11/17, 2012 Jetta Sportwagen
I'm gonna say there are few, if any, resources more well informed than the regulars on this forum in regard to the TDI engine. Prolly 500 dsg changes between us and we know what actually works. In real life.
Sounds like OP did everything right except warming the fluids. I've taken less than 20 minutes to put all 5 in. Except smelling your spillage, just drive it like you love it.
 

BarnyardsTDI

Veteran Member
Joined
Oct 28, 2010
Location
Sacramento California
TDI
2010 Golf w/DSG, Malone Stage 2 (all emissions intact), HID's, Sunroof, Dynaudio, NAV
If you plan to keep the car for a while, I'd suggest picking up the DSG fill tool from ID parts to do the bottom fill method. It's faster. Also, purchase VCDS to do the DSG service Adaptations after a fluid change. Ross-Tech has a full write up on their site for how to do it. One other thing, try to get the OEM DSG filter for all future changes. Sometimes after market ones have filter cap o-rings that love to deteriorate rather quickly and you'll see fluid seepage around the filter housing. The OEM branded ones seem to no do this. Robby (Runonbeer - when he was in Austin) told me that about 10 years ago. Happy driving!
 

Nuje

Top Post Dawg
Joined
Feb 11, 2005
Location
Island near Vancouver
TDI
2002 Golf 6MT; 2015 Sportwagen 6MT; 2016 A3 e-tron 6DSG

Nuje

Top Post Dawg
Joined
Feb 11, 2005
Location
Island near Vancouver
TDI
2002 Golf 6MT; 2015 Sportwagen 6MT; 2016 A3 e-tron 6DSG
Yep.
Dump the 5-6L or whatever you have of DSG fluid into the sprayer (2gal=7.5 L) , pump it in, get the transmission turning through the gears, wait for it to hit 35°C (infrared temp "gun" pointed at the transmission does the trick if you don't wanna pull out VCDS), then disconnect the line and let it drain out until you have a trickle. Tighten drain plug to 40Nm (NOT 30Nm...ahem, ahem, Audi service tech in Nanaimo, BC 🤬).

Done.
 
Last edited:

Fogcat

Well-known member
Joined
May 11, 2019
Location
Central NY
TDI
2011 Jetta Sportwagen
I used clear juice pitchers. The kind from say target or wally world, etc... Mark off 1/2 liter intervals on the side and then measure whatever drained out. You get a very accurate measure of tranny fluid. No guess work involved. You can fill through the filer housing hole with a funnel and tube that fits precisely. Sure its slow but sure. then you can do the temp level check. It hasn't been off even an iota in 6 years.
 
Top