Finally finished the video. Took forever and a day.
3 Likes
Woth it. Looks great so far as much as I have watched.
Looks like Erwin doesn’t allow USA location users to register for some reason. They send you to some Audi sponsored website if you want to purchase a flat rate but it still requires a valid Erwin user ID!
I didn’t have problems with it. I downloaded for 3 different cars.
I’ll post a screenshot of what I’m dealing with. Also, does the MTF sensor/drain have a washer? Mine didn’t when I removed it. I didn’t replace it with one either.
Ok big edit: only 1 of the plugs for the MTF/ATF out of 4 had a copper washer and that was the ATF pan drain. Is this normal!?
Another edit: apparently it’s not normal. All drains need washers but mine weren’t really leaking anyways. I had added them all. My last concern is the MTF on the transmission itself. I only was able to add about 3.5 liters before it started pouring out, which seems low. I unfortunately don’t know how much I removed. Does anyone have a number from when they did theirs?
It seems normal:
But as you say from the Redimist service instruction video appears he has them (at least for the MTF fill plug as well):
I have the full service manuals linked on another thread here.
Now, I would just fill it up according to this (I assume it is empty):
That also explains why you don’t need a washer.
Did you guys find the fitting from the for the MTF and ATF filling plugs, REDMIST mentions he got from the Schwaben oil extractor in the s-tronic service video? Or did you get the pump in the manual:
I went back and added the big silver washers. I had already filled the MTF so you can imagine how fun that was. Ape had mentioned on one of his YouTube comments that yes indeed all of the plugs need washers.
I didn’t order the correct tool so I didn’t have that fill plug adapter, however a larger $10 hand pump emptied a bottle in just a few pumps. The extractor I ordered from ECS isn’t as nice as Ape’s.
I know that all of these fluids are “full til it comes out” but I can’t help but doubt myself and worry I’ll destroy a very expensive transmission. That’s why I asked, good ole anxiety.
It should work with any handpump then since the VAS one is basic.
Are you saying since you only need to fill up to the bottom of the filler hole there is no need for an adapter if the car is completely level or tilting slightly with the filler hole up (also per the service manual).
Will check with a bubble level or some app if I can’t get hold of the adapter and as a starting point find somewhere with level ground.
Yep, I had washers on mine. I used the Schwaben fitting for less potential mess BUT I was also using the measuring technique, not the fill til it overflows method.
I mostly did this to avoid under-filling in case the car wasn’t level left to right or front to back. I actually used a level to check but I felt measuring the extracted fluid was going to be more accurate.
1 Like
Hi. I didn’t understand the procedure for oil change sport rear differential ?. For reset air circuit. Is it possible to do this with the VCDS? Or need another electronic valise ?
I didn’t reset mine. Just a drain and fill. I’ve driven a few thousand miles since and have driven it very hard.
What I do is service the diff then immediately drive in a figure 8, first left, then right. That’ll help prime the system and remove all the air bubbles. It helps that I live at the end of the cut-de-sac. Never had a problem with this method and I’ve now serviced the diff twice.
I’ve done the same as Ape and have serviced mine twice now with no issue’s.
@Ape_Factory just checking, in the end, did you go for Motul 300 also for the MTF on the gearbox? As it says here: https://youtu.be/EPdEquH8sXg?t=1033
I am guessing not and getting it for the rear diff only.
I eventually got a response from Motul. I guess everyone was on vacation but two months later, I received a call from one of their techs and they said yes, it’s fine to run Motul 300 in the transmission on the gear (MTF) side. It’s time for me to swap out the MTF fluid so I’ll be going with it in the gearbox now as well. I’ve used it in the rear diff for some time.
Great write up @Ape_Factory,
Definitely using this for upcoming service 
I have a question for you guys, is the intervals for service really critical ?
I don’t track my RS5, but drive it hard on Dubai beautiful roads 
Would changing all fluids every 50k be just fine ? Engine every 10k ?
Or I do really have to stick to different intervals for each fluid ?
Welcome and thank you a_ibrahem! I know a few other RS5 owners in Dubai!
On the service intervals, I’d stick with the Audi factory recommendations, especially for the transmission and rear differential. They seem to be the problem children so to speak. Do not go longer on the rear diff OR the MTF side of the gearbox. We rev out pretty high and I’m sure there’s a lot of oil molecule shearing taking place.
On engine oil, I actually recommend every 5,000 miles (8,000 Km) as it’ll help with longevity and reduce the amount of volatiles (off gassing) being ingested by the engine through the PCV system. It also gets pretty hot there so I’m sure that’ll have an effect on fluid longevity.
On another note, the JHM stage 2 tune will help reduce engine temps and I also have a transmission cooler which is extremely effective. The two other RS5’s I know in Dubai both have the trans cooler. Just shoot me an email, redmistracingllc@icloud.com or sales@redmistracing and I can fill you in.
What Ape said. Audi’s intervals are too long already. They only care to get it through the warranty, if you want it to last you need to change them earlier for the long run.
Thank you guys for quick and informative response,
Will get in touch with you @Ape_Factory, good to hear there is more RS5 here, don’t see it much tbh
My aim here is not to save or delay the service, I’m just trying to fix an easy to remember pattern for the service,
I do all my other cars this way, all fluids replaced every 50k and been fine, but I have to admit RS5 is most complicated in all
I understand that MTF in gearbox only need to be done every 20k miles, ATF and differential bother at 40k miles ?
So 50k km will be shorter than recommend intervals except for MTF in gearbox
Engine I’m doing every 10k km I understand it’s recommend every 15k km
So if MTF can’t handle additional 20k will have to stick to Audi recommendations then.
Hello again 
in process of ordering everything for the service, I noticed that same oil Motul Gear 300 is used for the MTF in gearbox for 30k interval and also for MTF in rear differential for 60k interval
is that correct or i misunderstood something ?
appreciate your inputs