Hi @Ape_Factory
I’m about to service my 0B5 S-Tronic on an S5 B8.5, I’m quite clear on the steps involved in doing the ATF side and I just had a few questions with regard to the procedure for the MTF side
Blockquote
MTF Side
Drain plug torque specification is 45Nm
Fill Plug torque specification is 45Nm
My drain plug doubled as a temperature sensor and was depicted wrong in any of the workshop manuals. Comes off easily and very accessible but it is a 26mm socket (short is fine) so make sure you have one of those before starting.
-Make sure the new gear oil is at about 68 degrees F, room temperature
-Slide the used oil collection unit underneath the gearbox drain which is located just aft of the ATF pan.
-Place a cloth over the tunnel cross member to keep oil from getting into the cast pockets when the fill/inspection plug is removed.
-Remove the transmission fluid level inspection plug first. Fluid may come out of the inspection port so be prepared.
-Remove the transmission drain plug and drain the fluid into a container.
-Install a new transmission drain plug and torque to specification or reinstall the temperature sensor.
-Fill with new transmission fluid until it begins to run out of the hole and let it sit for at least 15 minutes so the fluid settles internally.
-From then, add 50ml every 15 seconds until the transmission is full. The MTF must be up to the lower edge of the check/fill hole.
-Tighten the fill plug to specification (45Nm)
After filling MTF up to the lower edge of the fill hole, would it be a good idea to turn on the car and shift through the gear modes, and check/fill in more oil if level goes down?
Or is what you are suggesting, to wait 15 min for oil to settle and check level will suffice?
Is there any need to bleed the MTF side by running the engine with the fill hole open (while adjusting oil level?)
Ideally I would like to follow the procedure used by Audi technicians, unsure if anyone has access to the Audi workshop manual pertaining to the 0B5 service.
I’ve also been curious about why you mentioned making sure that the oil is at room temperature. In which situation oil wouldn’t be at room temperature? And in such situation, what would realistically happen if you filled with oil that is above/below room temperature? Just trying to understand the reasoning behind this recommendation.
My OEM MTF oil is sitting in my garage and it does get hotter than 68 degrees late afternoon. Should I store my oil inside my house maybe?
Thank you