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Never heard of anyone keeping core from Tesla. Presumably Tesla use as rebuild. LDU parts definitely can be sold in aftermarket. There are custom EV builds based on LDU hence salvaged LDU has fair bit of demand. Mostly supplied by salvage car currently.

BTW, most people's guess is no firmware change with coolant delete and QCC mentions nothing on their aftermarket part. Any firmware update indicator on invoice? Think you can check with SC to confirm?

I would align. Removed and installed my LDU and have misalignment tire wear patterns after (tire was nearly done so I didn't alignment and opted to monitor for rebuild coolant leaks after, ended up having to pull again) . Subframe has 4 bolts to body and a little play. Axles need to be removed...

Thanks for the pic. Glad to see -U says coolant delete on the sticker. Very helpful confirmation as these are just statingvto be deployed. Your LDU is T19 which means initially manufactured in 2019. R1 means remanufactured once.

Can post the quote? reman LDU prices seems to have dropped slightly compared to the past.

Best data is at Tesla but nothing revealed. Can try a logical mind experiment : If failure rates are very low, high motivation to publish info to aid sales. If failure rates aren't insignificant and no low cost repair solution, quite natural to not share data. Alternative method is to do design...

Rev U released recently so don't know how much older rev inventory in the logistics pipeline. It will say on your quote. Might want to confirm with SC personnel if you want Rev U. Might even ask if that is the coolant delete revision (they might not know?) Don't know if they are willing to take...

Yes, lots of chatter on this with those that have rebuilt the LDU. Here is a post, a bunch posts before and after https://teslamotorsclub.com/tmc/posts/7922911/ The coolant circuit for rotor has a 5mm outlet restriction and very low pressure so amount of flow and therefore heat removed is...

I heard QCC's first batch of parts are due in in Jan 24. Need one myself. Tesla's parts catalog briefly listed their coolant delete part a few months back. Inquired availability. Tesla said no and the part has since disappeared from catalog. Pretty simple part. We can hope for availability in...

I believe Tesla made 3 known improvements that likely had an effect. But still other failure modes exists. Tesla deploys revision changes mid year so probably can't just go by year alone. Nor do they publish a table on when these revisions are deployed. 1. Fuse Cover moved to Bottom (2016+?)...

One might naturally "think" a new pack in 18 (5 years old) would be okay for the next 5ish years. But there are a lot of variables and nearly no visibility to the real reliability stats of the entire fleet and various revisions. Higher moisture exposure situations likely shorten longevity. You...

The punctured coolant hose that clips into module are marked TGFS >PA9T/PA12 TFS9< The fitting head with the yellow clip marked PA66. Other markings are manufacturing time stamp down to the minute! PA9T, PA12, PA66 are all various types of plastic polymer TGFS might be manufacturer (...

Yes the premium and I'll call it the "nearly disposable" segment is def there. German brands have lived on it for years. Audi/BMW/Merc all do like 2M+ worldwide in this segment. 100k mile owner (in US, EU even lower) buying the car at 20% original price + DIY is the main downstream ownership...

I asked and checked. No firmware change. Simple manifold replace eliminating coolant flow to center of rotor and no more leak prone seal. QC Charge developed aftermarket part is plug and play. But we also don’t really know the longevity of the hotter running rotor. Some discussion on this and...

I based $1k on teslas own labor charge quotes on LDU replacements (~$600) suggesting 3 hour labor. This is quite time efficient I must say. SCs with lifts and hydraulic scissor tables makes this quick. LDU + subframe is removed, LDU then removed from subframe. Coolant delete manifold is small...

Yes. Rev U coolant delete LDUs are being deployed. It’s a simple manifold part change. If Tesla HQ allowed SCs to replace this simple manifold on drive unit that hasn’t failed as customer desired preventive maintenance. It’s $1k vs $7k drive unit replacement. Just like buying an engine to...

Yes. Quite an interesting idea. Having seen the condensation moisture failure, I do wonder how much periodic service will benefit after corrosion has started. I suppose will slow it down. Don’t really know wo lots of trials and stats.

This car has been featured before as one might expect. https://openinverter.org/forum/viewtopic.php?p=42372#p42372 Battery failure has a significant time based component ( cell wear and moisture ingress ) so high mileage cars gets the most out of the battery. Simple division isn’t average...

Seems unlikely anyone other than Tesla can publish a guide due to deadly hv danger and liability :( All traditional manufacturer provide guide (and parts) for their ev pack disassembly. But Tesla does not. Until then, probably no well organized source will exist unfortunately.

Tesla is quite disabling of DIY and aftermarket efforts in general on both HV battery and drive units. No disassembly info (like other traditional car manufacturer's EVs) or majority of the parts significantly hampers efforts. Its mostly salvaged parts or aftermarket alternatives (risky...

Just a final update on what we know about battery pack breather / air equalization evolution. Once again, HV pack is deadly dangerous. Do not attempt to disassemble it without expertise knowledge of the pack and HV safety. It can kill you as live HV danger points are invisible and water...

Doubtful Tesla did it voluntarily haha. Most likely EUs better right to repair culture. Hope EU eventually pressure Tesla to release battery and drive unit repair info and parts. Helps to unblock aftermarket service and repair availability. Critical when power train warranty ends with Tesla SC...

Interesting. What is 1 hr cost? 24 hr in US is $165

Recently helped @mr_hyde to setup toolbox 3 to diag a 2014 MS with the most economical 1 day subscription. Seems like most first timers spend quite awhile dealing with computer IT/connection issues. 1 day subscription could even expires before even getting proper connection to the car working...

Corking is just a software mapping to limit battery to lower capacity than it has. Just limiting how much capacity from every module can be used rather than physically disconnecting modules. battery is monitoring for internal failures which you unfortunately have and therefore disabled. Recell...

$5k would be the absolute minimum. Many charge 2x more without knowing what is found on the inside after extensive labor to open and reseal the battery pack. Most rebuilder will assume the worst and charge more including Tesla SC which values your pack least at ~$0 core. You also have the...

f107 code = brick voltage sensor circuit detect abnormality. Your Module 1 cell 3 and 4 are the max/min brick voltages causing the 54mV imbalance. This suggest potentially corrosion on Module 1 board (BMB) or the common sensor wire between cell 3 and 4 on Module 1. Module 1 is nearest to driver...

Certainly... even with failures Coolant soaked low iso windings can be dried out Corroded inverter control board wiring harness can be changed with salvaged replacement Washed out rotor bearing grease can be repacked Changing the manifold doesn't require pulling the reluctor wheel or motor end...

I've seen some chatter on openinverter on split coolant loop (cool inverter and motor separately) People didn't like the fact that cooler running inverter gets cooled after the motor. Unfortunately can't find the thread atm.

One note is the rotor's gearbox seal is handling similar surface speed as the coolant seal. Is a simple NBR V lipped seal and lubricated by ATF and keep ATF out of the motor chamber. Seems to work pretty well. However, this seal is dealing with a non flooded gearbox chamber and without any...

Can you post quote detail? Most quote I see is about $7k. Maybe they are adding some suspension items.. Also note I’ve read cars that had both high priced failures (drive unit and battery) one after another so need to consider that before thinking 1 repair will last awhile. Could encounter...

Had a Discord chat with ScanMyTesla (SMT) developer who works for an EU EV repair shop. He said they use SMT to check the standalone battery pack after repair. The connection is roughly - connector to BMS plug...

Ditto, probably getting rid of my 2013 MS85 sometime next year and never touching another Tesla again after studying how its made (battery pack, drive unit, water/moisture control) Been analyzing sources of disappointment. I think there are 2 : One is Tesla while the other is Large battery EVs...

Indeed, got an invoice date?

There is no rotor temp sensor that I'm aware of. There is a stator temp sensor which is probably what you saw. On longevity, probably need induction motor dev engineer to attempt to answer. Found some literature but just general summaries...

Interesting what you got last month was a Reman Rev T according to PN which I'm pretty sure still runs coolant through the rotor. Rev U (no coolant through the rotor) is in catalog now but I guess takes a few months to cycle through logistics. Probably desirable to get Rev U if one believes...

If this solution have sufficient clearance to the rotor shaft, it would prove there is plenty available space for mods :)

I presume you have a large drive unit which has a common coolant leak failure and downstream damages from the leaked coolant. It appears Tesla's latest revision (Rev U) delete the problematic cooling passage. See posts starting here https://teslamotorsclub.com/tmc/posts/7898613/ If your motor...

Cool, I noted in the openinverter thread the internal cover/cap need to also account for rotor shaft travel pressing against the bevel washers in the outer bearing bore. So after taking measurements of rotor shaft depth in the manifold, may need to add another 0.5-1mm...

3rd party repair shops all seems to be using triple lipped PTFE seal and results seems to be good. Seen them show brief videos of shaft repair with flame spray metal and chrome plating repair. Its a small area with very tight specifications along with a tiny blind seal installed chamfer. High...

Shared the coolant bypass manifold pic in openinverter. A good mod suggestion for modding existing coolant manifold is - remove the rotor tube - fit a custom cap into the coolant seal bore to seal off the chamber. Proper shape to clear the rotor shaft and leave enough gap for coolant to flow...

yeah, was thinking similar after my post... I do remove the plastic manifold inlet when pulling and installing the LDU into the subframe. There is so little room and plastic parts on both sides (coolant inlet on left side, HV connection plastic housing on right side) I worry swinging nearly 400...

Interesting. The printed PN on the coolant manifold in the pic (1492787-00-A) is what I found a few months back on Tesla parts catalog ( link ). Current catalog shows the part isn't listed anymore and latest LDU PN is now revision -U per your post. Without seeing inside of the manifold, can't...

A close up pics shows where the "improved" hose dump at... on dual motor cars. just in front of the hump and looks like just behind passenger side axle from the front motor. https://teslamotorsclub.com/tmc/posts/7143211/ https://teslamotorsclub.com/tmc/posts/7857417/ Note the 2nd link has the...

There are good 3rd party rebuilders but usually involved shipping car if you are in their locale. For example, QC Charge (QCC) in San Diego in US. They use triple lip seal source that seems to have proven to last well and globally used by few rebuilders. I don't know what QCC does to recondition...

Also recently encountered an unexpectated data. Original non reman LDU from 2014 EU car leaked and shaft exhibited severe wear with pitting under the seal. This is quite surprising because it suggest either the shaft is too soft or seal is too hard. I know Tesla and tier 1 suppliers contacted...

I've been collecting stats on this and both long lasting and high failure rate stats exist. Did my best to untangle why the 2 different patterns. Here is my analysis from collecting data from multiple LDUs The shaft surface that mates to the seal of the newly manufactured LDU is new and...

I believe @LayZ can root and turn on diag mode for the car. But he might need working MCU1/2. You might reach out to him to confirm possible solutions. I have an old PM with @LayZ, he said You might check with him on possible options.

Lease listing on post #71 ( link ) shows - Been listed for a month - A Model S parked out front - Warehouse floor show no signs of lift anchors. One would have assumed lift is necessary for efficient pack removal + install LinkedIn is another interest info source for hints. Can kind of get an...

An interesting article by AGM (provider of the air pressure equalization breather on top of the pack hump) https://www.agmcontainer.com/blog/how-to/engineering-moisture-pressure-protection-guide/ It clarifies some observations and demyth a few misconceptions... Basically say water will get in...