07-24-2017, 05:34 PM | #67 |
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Just did the change a few days ago myself. Took about 4.5 quarts.
FYI, the ISTA+ "Oil adjustment" procedure following pan/filter replacement is as follows (car initially off): 1. Fill pan until fluid drips from the fill plug 2. Turn car on, and immediately repeat step 1 3. Get in the car and shift to reverse, then D, then go into the manual shift gate and hold gears 1 & 2 for 10 seconds. 4. Put the car back in park and rev the engine at 2k RPMs for 30 seconds to fill the torque converter. 5. Repeat step 1. Replace fill plug Supposedly the fluid is supposed to be between 30-40 degrees C before doing step 5, but I was at a rent-a-lift place and didn't want to wait for it to drop from 57 degC back to under 40degC. I just overfilled a bit and quickly replaced my fill plug in order to compensate for the warmer oil. |
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07-25-2017, 10:12 AM | #68 | |
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Nice, good tips. What software did you use to measure the trans fluid temp? And what tool did you use to open the fill plug? That looks like the most difficult step |
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07-25-2017, 12:33 PM | #69 |
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07-26-2017, 10:43 AM | #70 |
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07-26-2017, 03:36 PM | #71 |
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The procedure doesn't say it's necessary, plus I don't see why you would need to. AFAIK, the adaptation is based off of the individual's driving habits irrespective of the condition of the transmission fluid.
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08-08-2017, 10:26 AM | #73 |
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Sorry Im new to the F30 family. So Im not completely understanding the transmission service. Do i NEED to use ista? Or will it be fine to just do a drain and fill, make sure to follow zf instructions without reseting anything or using any BMW software?
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08-26-2017, 10:31 AM | #74 | |
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The transmission needs to know there's new fluid so it can compensate for the change in dynamics. This is not the same as driver specific adaptations.
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08-26-2017, 11:39 AM | #75 | |
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The transfer case is a different story and does require a reset if the fluid is changed. |
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08-26-2017, 11:42 AM | #76 | ||
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So it's not required, but I never said it was required. This is the difference between the the right way and the "get by without it" way. *Possibly dated.
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08-27-2017, 06:50 AM | #77 | |
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08-27-2017, 08:16 AM | #78 | ||
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ZF has since made numerous changes to their site so I can't find it but I haven't spent a lot of time looking. In any case like I said earlier, if there's an option to have it done via ISTA then it should really be done. It is after all quite ironic that people are spending money unnecessarily changing their fluid early but balk at spending the extra couple of bucks to have the car hooked up to the computer for a reset.
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08-28-2017, 03:30 PM | #79 | |
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"To set the correct level, it is mandatory that the service function "Transmission control unit: oil adjustment" is performed using the diagnosis system. Failure to comply with this requirement will result in serious damage to the automatic transmission." Again, the oil adjustment procedure just says to do the following: 1. Fill pan until fluid drips from the fill plug 2. Turn car on, and immediately repeat step 1 3. Get in the car and shift to reverse, then D, then go into the manual shift gate and hold gears 1 & 2 for 10 seconds. 4. Put the car back in park and rev the engine at 2k RPMs for 30 seconds to fill the torque converter. 5. Repeat step 1. Replace fill plug It does not mention that an adaptation reset is required nor recommended. |
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08-28-2017, 04:17 PM | #80 | |
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08-28-2017, 06:43 PM | #81 |
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I will add that I prefer to do this procedure in the middle of the winter with lower outdoor temperatures. The reason is because I can leave the car outside for 1-2 hours to ensure the engine and transmissions have cooled down to a low enough level. It's far easier to raise the transmission temperature than to wait and let the transmission cool down to an acceptable range for the ISTA procedure to begin.
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08-29-2017, 11:08 AM | #82 | |
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Last edited by Sanelko; 02-28-2018 at 11:56 AM.. |
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09-13-2017, 04:29 PM | #83 |
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09-19-2017, 10:51 PM | #84 | |
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This note would seem to indicate that there is no valve... that the oil is flowing through the oil cooler all the time and will either be heated or cooled by the ATF oil "cooler" depending on whether the ATF fluid is hotter or colder than the engine coolant. |
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09-25-2017, 10:43 AM | #85 | |
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I'm no expert, but I don't quite understand the need for controlling the temperature, as long as you're not doing it in extreme temps. I'll most likely skip the whole temperature thing if and when I tackle this on my M235i. I can't imagine it would be too detrimental, just for slightly over/underfilling due to temps. |
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09-25-2017, 10:51 AM | #86 | |
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I wouldnt completely skirt the oil temperature issue.. ie cold I just dont think it has to do with the levels because of what I explained I just wouldnt stress over it and keep the oil temps in the ballpark range |
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09-25-2017, 12:23 PM | #88 | ||
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