Does anyone have the official procudure for filling a checking a zf tranny

[bcredliner]

It is not that you call out errors, it is how disrespectful you do so. Cliff Clavin is an example you use even to new forum members. https://www.youtube.com/watch?v=k6GTZrcoWEM
I don't take what you say personal. I would have to care what you think. I'm merely drawing attention to your tactics.

The thermal stuff you posted is not applicable. What we need to know is how much more fluid will run out of the fill plug from a difference in fill temp from 40-104 to 50-122 and 60-140.

I disagree that 15 minutes of running the engine and it should be OK to refill because, among other variables, it depends on what temp the fluid was when the engine was started. Since all procedures I have read list a particular temp necessary for the refill I think better advice is to use an infrared thermometer to be accurate. Don't need to keep in each gear for a minute, should also put in manual mode and go through 1, 2 and 3rd. gears. Should be in park for the top off.
I don't doubt you have seen success using your procedure as I have also had.

In the following text it states that the top off should be done at a temperature of 40 to 50, not 35. This is from the ZF manual posted.

6HP26X / 6HP28X General Transmission Oil Filling Procedure (continued)
Idle speed n_Mot = 650-950 1_Min according to manufacturer's specification.
NO YES
Engine fault: Oil adjustment not possible
NO
YES
Oil temperature between 30°C and 35°C
Open filler plug on the housing
Oil emerges at an oil temperature below 35°C
NO YES
Transmision contains too little oil
Wait until oil temperature reaches 40°C + 10°C
Increase oil level by adding oil until it flows out
Oil temperature must not exceed 50°C in any circumstances
Wait until oil temperature reaches 40°C + 10°C
Allow time to drip, then close the filler plug again
Oil temperature must not exceed 50°C in any circumstances
Allow time to drip, then close the filler plug again

For a distributor in your area call ZF at 1-800-451-2595 or visit our website at ZF in North America - ZF Friedrichshafen AG.
All Rights Reserved For Reference Only ©2008 ZF Se

Since the manual posted is not for the ZF 5HP24, I suggest we ignore all advice in favor of the following procedure: https://www.youtube.com/watch?v=S8jcRd4gyWc . And, if you want to challenge it call the distributor number listed, after you call Otto, and tell ZF they are WRONG or just send them what you do so they can make the correction. As for me, since it is not unusual that there are multiple paths to the same destination, I am going to call Otto and ask why they differ from ZF and continue to search for an answer as to the amount of fluid that runs out at the different temperatures. I could just be lucky I haven't destroyed my transmission.

[blaubenz]

Looks like there is what I call small variation on how to check and fill the tranny. The differences are checking it at neutral or park and checking at between 30-50 deg C and 140 F (50 deg C= 122 deg F).

Bottom line here.

Does anyone who used these procedures ever had a problem associated with under or over fill tranny.

Like I said before the only thing I worry about is not know if at a certain temperature (say at 140 F) a valve open (say to the oil cooler) which will significantly change the fluid level at the pan.

***update****

Check my research, but it look like the valve (Thermostat) that controls the transmission oil cooler is on the radiator side (attached article). So that stands to reason the fluid is always circulating on the oil side of the tyranny, so that should not change the oil level in the pan.

BMW X5 Transmission Cooler and Thermostat Replacement (E53 2000 - 2006) | Pelican Parts DIY Maintenance Article