M4wd&Fabrications
Projects place => Projects Section => Topic started by: mr.mindless on August 17, 2022, 11:55:00 PM
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I guess I never started a thread for this car
It threw a transmission error two or three times in the last month. A key cycle would get it back, no drama.
On the way home from work last night the trans went into limp home and stayed there.
Lasts through a battery disconnect.
I finally went through getting the bmw diagnostics software INPA installed in the last hour and have it talking to everything EXCEPT the transmission.
Both TCM fuses are good. I’m going to have to see if there are any other diagnostics to do before tcm replacement.
Almost exactly at 150,000 miles. First issue after working around bad top sensors and fixing some oil leaks. I think I’ve put 7-8k on it.
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Saved and cleared codes in ECU and TCU.
Errors didn’t come back immediately. Took a 5 mile test drive, all good.
Going to take it to work tomorrow and see what happens, and look at the stored codes in more detail.
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4 heat cycles, 70+ miles. Nothing.
Hmmmm
Back to daily status for now. Need to look at the codes I dumped in detail.
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153k it’s back in limp. Needs a manual swap. Damnit
Noticed some oil spots on the rear bumper. Low fluid?
(https://uploads.tapatalk-cdn.com/20221006/252c9c2336b823a70a8def7fd0b93b9b.jpg)
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FML
lol
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Got this in the air tonight for a moment. Wanted to drive it in the warm if wet weather this week.
Rear output is dry as a bone. Front of trans is quite wet and I suspect it’s for a front pump seal leak. I did not change fluid but just topped it off. Want to see if it acts right when filled up. Took about 3 quarts, which supposedly is what a quickie pan drain yields, so that’s really fuckin low.
Didn’t smell burned. Did look quite frothy.
153k on it.
Could send it “with an oil leak”
If I drop the trans to do a pump seal it seems silly not to rebuild it doesn’t it? I need to look at longevity of this trans in other models that actually get miles. Sarah does seem to want it for a summer driver if the Z3 proves itself for me.
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trans shifts like new, not a single hiccough.
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Coolant leak maybe found. Need to pull some things apart and pressure check. Sounds like radiator side tank, I heard a hiss when I got home yesterday and saw steam
Not a bad leak but it has been getting worse.
Will drive it today and tomorrow then put it back on the list. Now with rad and trans front pump seal as the items. Bah
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big oil puddle under this after the trans top-off. clearly a big seal issue somewhere.
these middle-aged car problems are tiresome.
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Trans out. Trans jack ordered for reinstallation. This thing is heavy. And I find that I drive through a dumb rubber doughnut plus 2 u-joints and a carrier bearing. Weird. I was expecting a slip yoke and 1 piece shaft. IRS stuff I guess ¯\_(?)_/¯
I was hoping to see an extraordinary mess between the trans and torque converter, but I do not. Will still move forward with changing that seal since it did appear to be the source.
No huge mess from rear main on the engine. Some drool from front main. Bmw used material for gaskets that acts like hard plastic after 20 years of heat cycles, so most every static gasket that I didn’t change yet weeps just a hair. Probably do valve cover gasket at some point and see if that kills the majority of the rest of the oil drips.
(https://uploads.tapatalk-cdn.com/20230501/4a06c7f78d3da7c4a81514d30b81a0a5.jpg)
(https://uploads.tapatalk-cdn.com/20230501/7bedc5f87000b368a3c7722ccf05a710.jpg)
(https://uploads.tapatalk-cdn.com/20230501/0f9b059ed8988655c669d1baea576700.jpg)
(https://uploads.tapatalk-cdn.com/20230501/bc0a5f80aa4faf2756b48f707b42596d.jpg)
(https://uploads.tapatalk-cdn.com/20230501/0fd5ee00f16c47c6c42fe4b2ffa9e5aa.jpg)
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heads up, all of the cheap transmission jacks only tilt in one dimension. they have a useless sliding function. i missed this when i ordered mine. modified it to tilt both dimensions pretty easily though.
https://www.amazon.com/dp/B0B8H62XRB/ref=sspa_dk_detail_7?pd_rd_i=B0B8H62XRB&pd_rd_w=0UloD&content-id=amzn1.sym.f734d1a2-0bf9-4a26-ad34-2e1b969a5a75&pf_rd_p=f734d1a2-0bf9-4a26-ad34-2e1b969a5a75&pf_rd_r=BF87M88Z5HNKYH2JKR0Q&pd_rd_wg=ePW1S&pd_rd_r=36289d6c-ff4b-4a1a-a76f-1865e7fc8959&s=industrial&sp_csd=d2lkZ2V0TmFtZT1zcF9kZXRhaWw&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzR0hMSDVFRFRURDNBJmVuY3J5cHRlZElkPUEwNzk2MTY1MU01TzBOUTc4RUVFRyZlbmNyeXB0ZWRBZElkPUEwNTk1NDE3MUU1MktGQlVWM1hOViZ3aWRnZXROYW1lPXNwX2RldGFpbCZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU&th=1
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This thing is sloppy but does tilt both ways.
Got home too late to actually test it out. (https://uploads.tapatalk-cdn.com/20230504/04bcf0c7d7611a5fcb2f23820cf9dbaf.jpg)
(https://uploads.tapatalk-cdn.com/20230504/45ef6318daf190ccf8133ff412b0105f.jpg)
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Proved it leaks when sitting static though. It’s low fluid level now so I tilted it forward. TC still fully seated and it’s giving a drip about every 7 seconds.
(https://uploads.tapatalk-cdn.com/20230504/60a55850daec40a32e3c2397033f69f3.jpg)
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first rockauto fail I think I've had. should be just about done putting this back together, instead I'm looking for any local availability on the input seal I've had on my shelf for [checks notes] 76 days.
part number and lookup match, but actual dimension is over a quarter inch off on OD.
thrilling.
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finding lots of cross references that have dimensions all over the map. decided to go with the BMW parts counter option so I've got a sneeze more confidence in right part and hopefully a better cross ref if it's still wrong... 🤞🏻
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Matching p/n from the stealership for only two prices. No ragrets!
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Ragret that it didn’t fix it.
Pump to case seal next? Drop off the trans for a rebuild?
Bah
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Oof. Had the AC compressor replaced in the Mini yesterday, now water pump is leaking ::)
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Ragret that it didn’t fix it.
Pump to case seal next? Drop off the trans for a rebuild?
Bah
fawk that sucks. i was suprised the bucket van was fixed with a 9$ seal and just labor.
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There was no giant puddle after short drive last night. Ill see how the work spot looks when I leave. Baseball size is too much to leak a couple times a day. Few drips I won't worry about. Maybe it found it's happy place somehow lol
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No drips at all leaving work. None at all in the driveway from last night. We’ll see what time brings I guess. Hmm
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2 days in the same spot at work and this is all I’ve got. Might be tolerable. But WTF
(https://uploads.tapatalk-cdn.com/20230511/e44934056fcd04e8a5db84fb7d03c0b4.jpg)
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Trans has been good. Coolant leak has been stubborn. Accidentally put this in Sarah's Jetta thread a couple weeks ago, but it was Z4 info. The coolant loss and wet left side of the radiator has continued. Tempted to throw the radiator in it, but I really don't think it's a side seam tank leak issue. I think it's all the damn connections refusing to seal up right.
Of course when I did the below I was probably 4 more connections from pulling the radiator out.
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All o-rings replaced on the driver side of the radiator. Couple hoses, trans cooler (which had a ton of RTV on it from a previous to me repair attempt) and the expansion tank I already replaced.
Hopefully good.
Only has distilled water in it for the moment, and I didn’t put the splash shield back under it. Hopefully done and can get some water out and antifreeze in after a could days not leaking.
Frighteningly little coolant drained out. Leak has been getting worse, like half gallon a day give or take, in a car size cooling system with single row radiator. Will be obvious if it’s fixed or not.
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Coolant leak went gross on the way to work this morning. Guess I’ll find it now (or with my luck on this so far, I’ll fix the major and still have a minor). Will have to tow home tonight. Sarah’s first day at new job so not telling her yet that I need a ride home…
Seeing a weird bubbling spot under the oil filter housing that looks like water boiling through oil. I wonder if there’s an oil/water cooler thing going on there? I replaced that gasket right after I got the car to fix a major oil leak.
No milkshake in oil pan so if there’s any crossover it’s incredibly minor and has cooked off.
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Likely coolant pipe issue behind there, looks like.
https://youtu.be/p-oxpeWKtYM
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Coolant pipes, intake mani gaskets and CCV hoses that will probably turn to dust as I remove them are delivering today. Hope to have this guy back out and about soon
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After replacing those coolant pipes I still had the slow leak. The gross leak and slow leak were entirely separate.
I swapped out the radiator and a couple more o rings between the rad and expansion tank mount and it’s finally sealed up. No drips for four heat cycles. Finally.
Time to either make it Sarah’s, or try to send one of the Z cars, I think.
NY inspections scheduled for both of them, and the ram, next week. TDI wagon has a brake dragging already from sitting.
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Oil and filter, 155,639
Changed ANOTHER o ring in cooling system. Will definitely need 2qt drained and antifreeze added.
Was leaking a bunch today again.
If it leaks again, need to replace not the expansion tank mount but the other elbow with the drain. Has a weird void in it that may damage the o ring on reassembly.
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I may have to burn this thing…
(https://uploads.tapatalk-cdn.com/20230804/9b31716916e4e61e9099d247e39fc36f.jpg)
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I think it’s time
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