12-26-2019, 12:02 PM | #45 | |
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For those that travel with Family, kids, loved ones, are you absolutely so stead-fast in your BMW marketing fandom that you will tell them to IGNORE the ZF reccomended maintenance, knowing that with high probability cause a pre-mature transmission malfunction and create a very unsafe situation for their family and those on the road around them? If that is who you are, do us all favor and leave this thread, you are only making yourself look a fool. |
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12-26-2019, 12:03 PM | #46 |
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When i changed my fluid at 75k it was very dark. Whereas when I change the fluid on my chevy truck with same miles and lots of heavy towing, the fluid is still relatively clear. Not sure what causes the fluid to get so dark in the zf trans.
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12-26-2019, 01:11 PM | #47 | ||
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Then after asking since it was high milage if changing the fluid would help, they said you don't need to change the fluid, but if i insisted they would perform a flush as it was the best way to change the fluid and clean the trans. I said let's do it as it's the cheapest way to at least get things clean and start their. After the flush it was a different trans and performed perfect for 50k miles till it was taken from me. So as far as I'm concerned the fluid change made the difference and I'm sold on that it makes a difference as i had first hand experience with it. Their is always a risk that their may be issues with doing a flush or change as it may knock something loose and cause issues and plug journals and that's why my dealer at least doesn't like doing trans fluid changes unless it's absolutely necessary. If you wait to long they won't do to regardless as it can cause problems. |
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12-26-2019, 03:11 PM | #48 | |
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12-26-2019, 03:43 PM | #49 |
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I did mine at 50k, for the peace of mind. Whether or not it extends the life my transmission, I can't say. And it doesn't seem to make it any smoother.
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12-26-2019, 04:17 PM | #50 | |
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Drove great for 50k till the dealer blew my motor. It's just like when people change their oil at 5k vs waiting till 10k To them it makes a difference, I like clean oil and a clean engine so I change mine at 5k always and since it's recorded hopefully the next owner will appreciate the sooner change intervals. Either way all one can do is present the facts and information provided and make their own educated decision on what works best for them. |
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12-27-2019, 07:44 AM | #51 |
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I'm getting the transmission fluid, front and rear differential fluid done in February . My 14x5 35xi currently has 48,000 miles . So I thought it was perfect timing .
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12-27-2019, 10:38 AM | #52 |
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I posted pictures of my fluid from the tranny at 98k miles. If anyone thinks that stuff was still lubricating properly......
I'll also mention the front/rear diff and transfer case should fall under the same schedule. https://f15.bimmerpost.com/forums/sh....php?t=1639922
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12-27-2019, 10:53 AM | #53 | |
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Jealous of your lift!! |
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12-27-2019, 10:58 AM | #54 |
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12-27-2019, 04:12 PM | #55 |
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Update from ZF customer service
Since I wanted to know ZF's thoughts on this subject, I contacted them. Got this reply:
Dear ....., So they recommend changing it at around 93,000 miles, or less... I did not get a reply to my question of if they recommended a flush of the system? Or just replace the fluid and not worry about the 20% or so, that won't come out when draining. So I replied, have wait and see if I can get an answer to that also. Last edited by 1norseman; 12-27-2019 at 04:34 PM.. |
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12-27-2019, 05:04 PM | #56 | |
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Unless someone beats me too it, I plan on making a video on this as while its pretty easy to loosen the valve body, the torque sequence and and spec are critical, not to mention people new to working on transmission might get over-zealous and loosen the bolts that hold the valve body itself together. There is a Mechatronic sleeve for the B-Clutch behind the valve body, it would be intersting to know ZF stance on this on when it should be changed. On the ZF6, its mechatronic sleeves were notorious for causing issues past 120K |
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12-27-2019, 05:58 PM | #57 | |
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Not worth the keystrokes folks! |
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12-27-2019, 06:20 PM | #58 | |
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"Generally" these cars go from home to office to Costco parking lots. They don't tow, see neutral drops, track days etc. Generally they're worthless after 150k miles anyway. So generally you'll be fine as your 40k car goes down to zero in value. Not my words but from ZF you can read it all or simply ignore the part you don't like. Suure change it if you're worried about previous history but gosh even zf says you guys need to calm down.... However the thread will continue and many like this in other forums because its all marketing BS rite and gosh your transmission is special because it doesn't fit the "typical/general" scenario. First it was BMW but maybe now its marketing bs from ZF. They're likely lying about 93k miles too because they really want you to buy more transmissions fluids and transmission filters at the very least from them. Or maybe this conspiracy goes deeper and they're in bed with BMW and German industrial power house. |
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12-27-2019, 07:29 PM | #59 | |
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This is why both their OFFICIAL written Guideline tells you to change at 50-75K and their video, which you obliviously failed to watch, calls out BMW directly on their lie telling people not to service the transmission. Its really easy to understand: 50K for extreme (towing, M) 75K if you are an enthusiast/preventative maintenance, 93K or 8 years if you absolutely want to get every mile out of the oil. Was it marketing BS when my Transmission fault hit out at 115k coming downhill in traffic on a windy mountain road that was traced to oil well passed it serviced life that caused increase wear and eventually the failure? Was it marketing BS when it almost caused a accident when I had to get off the road as quickly as possible? Was it marketing BS the sheer look of terror and shock on my family of what just happened and how we all could have been killed? Your not only an idiot, but a dangerous one at that, actively going against the manufactures recommendation that can have severe safety consequences (not to mention 10grand for a new transmission). I have first hand knowledge of how dangerous a transmission that faults on you can be, many of us here drive with our family and if a simple oil change can prevent a catastrophic failure, then that is their right to do it. Some moron like you touting "Bah they are all shit after 100K anyway, who cares?" is not helping anyone. You must be beyond bored in your life for a damn simple oil change recommended by the manufacture to bother you so much. You don't want to change your oil, fine go right ahead. The rest of us that actually care about cars and the safety of our vehicles do. The manufacture has repeatedly said you need to change the oil. You are on the loosing team my friend. Lets just cut right to it shall we? Your to damn lazy to change your oil and this is making you second guess yourself, thats cool but don't take your baggage out here. Go troll another thread. Last edited by Sophisticated Redneck; 12-27-2019 at 07:50 PM.. |
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12-27-2019, 07:51 PM | #60 | |
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You win and I am wrong. |
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12-27-2019, 11:05 PM | #61 |
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I had my front, rear diff and trans flushed awhile back. I also sent a trans oil sample into Blackstone with no abnormal results at 64k. I don't regret it and may do it again if I decide to keep the car past 80k at 90k maybe. I am not a lifetime kool aid drinker .
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12-28-2019, 12:42 AM | #62 |
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Not even sure what there is to argue about here?
I agree with ZF on the timing of the oil change so I did the trans oil/pan, transfer case oil, front and rear diffs amongst other things at 60K. I elected to spend my monies and time completing the work for the piece of mind. Gained 3mpg on Avg after the change so that was nice but all fluids looked healthy the the eye. Each owner should make decisions on when/what they do to their vehicle...no right or wrong answer when its your property. Just my take and there is no doubt that BMW does not want the additional cost so they determine whatever interval suits their interests. |
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12-28-2019, 07:15 AM | #63 | |
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That increase to mpg is unexpected but I certainly am not one to doubt you. |
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12-29-2019, 03:10 PM | #65 |
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12-29-2019, 04:32 PM | #66 |
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