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Tesla Employees Say Automaker Is Churning Out a High Volume of Flawed Parts (cnbc.com) 150

Several current and former employees of Tesla said that the automaker is manufacturing a surprisingly high ratio of flawed parts and vehicles, leading to more rework and repairs than can be contained at its factory in Fremont, California. CNBC reports: One current Tesla engineer estimated that 40 percent of the parts made or received at its Fremont factory require rework. The need for reviews of parts coming off the line, and rework, has contributed to Model 3 delays, the engineer said. Another current employee from Tesla's Fremont factory said the company's defect rate is so high that it's hard to hit production targets. Inability to hit the numbers is in turn hurting employee morale. To deal with a backlog of flawed parts and vehicles, said these current and former employees, Tesla has brought in teams of technicians and engineers from its service centers and remanufacturing lines to help with rework and repairs on site in Fremont. They also said that sometimes the luxury EV maker has taken the unusual measure of sending flawed or damaged parts from Fremont to its remanufacturing facility in Lathrop, California, about 50 miles away, instead of fixing those parts "in-line." Tesla flatly denies that its remanufacturing teams engage in rework. "Our remanufacturing team does not 'rework' cars," a spokesperson said. The company said the employees might be conflating rework and remanufacturing. It also said every vehicle is subjected to rigorous quality control involving more than 500 inspections and tests. The report from CNBC has caused Tesla's stock to tumble today. You can read Tesla's full statement about the CNBC report here.
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Tesla Employees Say Automaker Is Churning Out a High Volume of Flawed Parts

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  • by garcia ( 6573 ) on Wednesday March 14, 2018 @08:13PM (#56262547)

    From the blurb; emphasis mine:

    Several current and former employees of Tesla said that the automaker is manufacturing a surprisingly high ratio of lawed parts and vehicles, leading to more rework and repairs than can be contained at its factory in Fremont, California.

    That's ok, Slashdot has had plenty of time to work out all of its kinks in the supply chain for their product and, yet, we still see a surprisingly high ratio of flawed spelling.

    • yet, we still see a surprisingly high ratio of lawed spelling.

      Fixed that for you.

    • Which is what this article by Lora Kolodny is.
      She really, REALLY, REALLY has an issue with Tesla. [slashdot.org]

      And again... she puts doom&gloom in the title...

      Tesla employees say automaker is churning out a high volume of flawed parts requiring costly rework
      Tesla employees say the company is manufacturing a high ratio of flawed parts and vehicles that need rework and repairs.
      The electrical vehicle maker has had to ship some flawed parts to remanufacturing facilities to avoid scrapping them, rather than fixing them in-line, according to sources; Tesla denies this.

      Then she digs through "at least one Tesla employee profile on LinkedIn" to try to "prove" a much greater level of part rework - cause an employee listed working in a team of 130 instead of 40 on a CV.
      But the best part is where she quotes experts.

      Like this part at the end of the second paragraph...

      Lean manufacturing specialist Matt Girvan, founder of MAG Consulting, said: "Even during what is considered 'launch' mode, if a company is selling its cars to customers, it should not be experiencing large amounts of rework.
      This speaks to an internal quality issue that is on a magnitude that is not normal for most car manufacturers."

      Then... after much more text and a "sad" photo of Musk [cnbc.com] (Why not a

  • by Anonymous Coward on Wednesday March 14, 2018 @08:44PM (#56262639)

    Something overlooked in the description, Tesla is making many if not most of the parts there in the factory right next to the assembly line. Having also been to Ford and GM assembly lines, and seen many others on TV (How it's Made!), Tesla's approach is radically different! If you have to stamp raw aluminum, put it through a bunch of processes, you're going to get a few that have blemish or minor rework issues, or are scrap. Every factory making parts from scratch has a yield. I remember when flat panels were first introduced they were super expensive because the yield was down around 30%. I would guess the current flat panel yield is up in the high 90s.
    Ford and GM had parts fabricated away from the assembly line, so there was a lot less yield related issues by the time someone was bolting on a part, those were dealt with elsewhere.

    As long as there's a process to catch problems before the become part of the car, who cares. I for one am extremely happy they are having production slowdowns rather than shipping flawed cars.

    • by Ungrounded Lightning ( 62228 ) on Wednesday March 14, 2018 @09:11PM (#56262735) Journal

      Tesla is making many if not most of the parts there in the factory right next to the assembly line. Having also been to Ford and GM assembly lines, and seen many others on TV (How it's Made!), Tesla's approach is radically different!

      Been to Ford's River Rouge plant? Looked at a documentary of it in its early days?

      The Rouge Plant was built as a machine that took in coal, iron ore, and other raw materials at one end and spit out finished cars at the other. This was how Ford tried to do it when he was the Musk of his day.

      These days things are spread out more.

      Also: Tesla doesn't build EVERYTHING at the plant (though they are partial to suppliers located within a few miles, so they can interact and ship stuff around in a matter of minutes to hours, rather than days or weeks. (Much like the chassis and final assembly plants at the GM complex in Detroit, which function as a two-part line with a gap measured in city blocks.)

    • Defects shouldn't make it to the line though; they should be dealt with at the component testing level.

      40% failure rate seems high, but how they are counting it matters a lot-- one failed component per 2.5 cars (out of thousands of components) vs 40% of front right quarter panel (or whatever).

    • by sphealey ( 2855 )

      = = = Something overlooked in the description, Tesla is making many if not most of the parts there in the factory right next to the assembly line. Having also been to Ford and GM assembly lines, and seen many others on TV (How it's Made!), Tesla's approach is radically different! = = =

      I appreciate the innovation and marketing skills that Tesla is bringing to the electric car market, but there does seem to be a lack of knowledge of the history of the auto industry as well. E.g. electric cars were availabl

      • Ford even bought plantations in South America and the Pacific to internally provide fibers and rubber for seating, tires, etc.

        Not particularly picking on Ford here, but I'm wondering how many of these antique car companies were using rubber and sisal (popular stuffing fibre) or coir (ditto) which came from plantations still using child labour or indentured labour (fancy name for slave labour) in the 1950s and 1960s? I'm sure the figures would have been higher in the 1930s.

        I'll just go and read an article s

    • by tomhath ( 637240 )

      ord and GM had parts fabricated away from the assembly line, so there was a lot less yield related issues by the time someone was bolting on a part, those were dealt with elsewhere.

      Either the manufacturing and inspection processes work, or they don't. It doesn't make any difference where the part is made.

  • by XSportSeeker ( 4641865 ) on Wednesday March 14, 2018 @08:48PM (#56262649)

    ...just in time for that Gung Ho reboot?

  • by dgatwood ( 11270 ) on Wednesday March 14, 2018 @08:54PM (#56262659) Homepage Journal

    My Model X came off the line with a bad charge port that was almost impossible to supercharge. I later found out that this was a widespread manufacturing defect that occurred in cars made over a period of weeks in late 2017. As a result, they ran out of (non-defective) replacement charge ports for the entire region, and had to send out field techs to manually file down the defective plastic guides in the charge ports of a large number of vehicles.

    The cost of these mistakes to Tesla has to be just incredible. They would be much better off financially if they added an additional validation step early in their supply chain, even if that meant eating the cost of a few parts.

    And this doesn't just affect their new cars. These Model X charge port issues happened more than two years after production on the Model X began. That's insanely late in the production cycle for manufacturing tolerance issues to suddenly crop up. Very bizarre.

    • by Anonymous Coward

      That's insanely late in the production cycle for manufacturing tolerance issues to suddenly crop up. Very bizarre.

      Obviously you've never worked in a factory. It isn't bizarre to have tooling wear out and cut oversized or undersized parts eventually. Especially if you are pushing massive numbers of parts with insufficient manufacturing resources.

      What's really going on here is that they have shitty QA on their products.

      Maybe they aren't really doing QA and are telling the guy running the part to check every ten parts, but oh yeah, also you have to hit 110% of production, not our problem how you can fit 65 minutes in an h

      • by Luthair ( 847766 )
        One would hardly describe Tesla as pushing a massive number of parts...
    • by AmiMoJo ( 196126 )

      The Tesla forums seem to confirm this, as does the fact that European owners have fewer issues because the cars are re-assembled and re-tested in the Netherlands and so get a second round of QA testing. Faults like trim not aligning, falcon wing doors not working, excessive rattle and noise when accelerating etc. that plague US owners are much less common here.

      In other words the warranty repairs that US owners have to take their new cars into the service centres for are done at the factory in the EU. Even s

    • by LabRatty ( 96497 )

      Purely anecdotal, but a colleague at work has one and in 18 months about 1/4 of the car other than the chassis has been replaced, I'm not kidding.
      Not because they failed as such, but each time it has a bit of a squeak or at the checks each 6 months they always replace stuff.
      Sometimes small stuff like the wing mirrors squeaking when they adjust, to parts of the drive and control systems that are starting to give of diagnostic warnings. Brakes, hubs, bits of interior, all replaced at various points for free.

      T

  • Need some more Anti-Uber articles to balance this out!

  • by Anonymous Coward

    This is clearly yet another attempt by Tesla's "old-fashioned" competitors to tarnish Tesla's name. You know, the companies whose car parts are total crap and yet do pass their "rigorous testing". And news sites like this are happy to post this shit, without asking questions like "how come we suddenly see news about a car company's' manufacturing failure rates reaching mainstream news?"
    Since when has stuff like this started reaching mainstream news? Oh, since Tesla, a company that makes very high quality el

  • by AlanObject ( 3603453 ) on Wednesday March 14, 2018 @08:57PM (#56262671)

    The report from CNBC has caused Tesla's stock to tumble today.

    Remember all the Tesla fires? The stock tumbled then and I managed to get in at the bottom of that particular drop.

    I'll never understand how or why the markets are absolutely eager for anything remotely bad about Tesla Motors so they can let their fear-ridden backbrains take over and sell in a panic. Fine I will just buy then.

    As to the issue: new factories pushing the edge on new kinds of parts will inevitably have issues of this kind. I would be more concerned if they reported a zero or tiny defect rate. That would indicate that the QA dept is not doing its job and somebody is hiding something.

    Bottom line: Tesla revenues are supply limited. Specifically supply of batteries. They have a huge backlog of sales. Yes a 40% defect rate of something is a problem and has to be fixed. I have seen defect rates like that and worse on stable product that hasn't changed in 5 years. That is why there is a career in supply chain management. That is why there is a career in Quality Assurance.

    But if you have a backlog and you have funding (Tesla has both) these problems will be fixed. The stock price drop has to do with the market obsession with making this quarter's shipments and revenue numbers and nothing else.

    Had this not made the news I would have been surprised if this had even reached Elon's desk.

    • Re: (Score:2, Insightful)

      Tesla has a P/E ratio of -30. You would have to be nuts to invest in that.
      • Elon Musk is worth $20B. How about you?
      • The value of a stock is the npv of the future cash flows. P/E tells you what happened in the past and is a good stock value measurement to the extent that it predicts future cash flows. A negative P/E likely means that it may be a long time until positive cash flows occur. But it says nothing about the magnitude of future cash flows especially of a growth business.
      • by torkus ( 1133985 )

        Tell that to the people making money off it.

      • One reason to invest in a company is that it has a good P/E ratio. Another is in the belief that it will get one later. Which you likes depends on how conservative an investor you are. Buy companies based on long-term prospects, and some will fizzle and a few might make it big.

    • I'll never understand how or why the markets are absolutely eager for anything remotely bad about Tesla Motors so they can let their fear-ridden backbrains take over and sell in a panic.

      It's trivially easy to understand - Tesla is insanely overvalued and financially on the edge.

      They have a huge backlog of sales.

      That's one important metric - equally important is how fast they're working through that backlog and converting potential sales into cash in the bank. (Actually, that's probably even more im

    • Had this not made the news I would have been surprised if this had even reached Elon's desk.

      You lost me. If Musk didn't make it his business to know about a 40% defect ratio, that makes him at minimum an absolutely terrible manager.

    • Yes a 40% defect rate of something is a problem and has to be fixed. I have seen defect rates like that and worse on stable product that hasn't changed in 5 years. That is why there is a career in supply chain management. That is why there is a career in Quality Assurance.

      Interestingly, Tesla is trying to get good product out, despite the trouble. They'll want to fix this stuff because it lowers their costs (operations cost 67% more if you have a 40% defect rate), and right now they want to get out into the market.

    • Had this not made the news I would have been surprised if this had even reached Elon's desk.

      You lost me. If Musk didn't make it his business to know about a 40% defect ratio, that makes him at minimum an absolutely terrible manager.

      I'll never understand how or why the markets are absolutely eager for anything remotely bad about Tesla Motors

      dear god I've seen almost nothing but the opposite. People are taking whatever Musk says as gospel, hook line and sinker. People believe he's going to put them on Mars, for fuck's sake. I'm so tired of the insane fawning over Musk that even his company failing wouldn't be enough to correct the karmic books.

      Some people seem to need heroes to worship, and Musk has a

    • Tesla's price is largely built on speculation. Having a back order of sales does not matter if you are not making money on those sales. Speculative markets are always more volatile and Tesla falls into that category. With more and more bad news it becomes less likely Tesla will make it to the black before their competitors can cut out a market share.

      Further, the production of the model 3 is slow because of all these parts issues not battery supplies. In mass production the goal is not to stop the line, ever

  • by Anonymous Coward

    Anything as complex as a manufacturing line should have some kinks for a short while until they figure out the points of failure.

    I've worked on software for manufacturing lines, making many millions of things at a time. Yes, most things are going to have 99% acceptable tolerances once you're all set - but I've also seen lots of notable manufactured things where because the run was small, they were willing to throw away the majority of the run just to avoid having to go back to re-engineering.

    And yeah - the

    • No I don't think it is normal. Consider Ford switched to aluminum for their F-150. Something they make more of in a month than Tesla makes all year. And yet somehow, like magic, they all pop out like cookies perfectly baked. For the 3, I keep thinking the old Lucy comedies where Lucy & her friend are on an assembly line and can't keep up. Hilarious comedy because you think it can't happen. But maybe it is over in Fremont.

  • by GerryGilmore ( 663905 ) on Wednesday March 14, 2018 @09:11PM (#56262733)
    ....in their parts department, I can tell you that pretty much every model of car manufactured has some certain parts from some certain providers that are notorious for failing. This is what led to Toyota achieving such dominance today: they learned the "Barney Fife" lesson - "Nip it in the bud, Anj! Nip it in the bud!". They relentlessly send their engineers into their parts provider's lines to perform front-line QA and "kaizen" (continuous quality feedback). Tesla seems like they want to get there, and will - I believe - but as with all complex systems, there is lots to learn (and relearn) along the way.
    • by Anonymous Coward on Wednesday March 14, 2018 @09:29PM (#56262787)

      Having worked for an automotive parts manufacturer in the QA department I can tell you that 40% is absurdly abysmal. 1 in 1000 requires an executive meeting. 1 in 10,000 makes the line stop. 1 in 100,000 is the contractual maximum for the Toyota parts we supplied. Ford was tolerant of a few per 100,000 requiring rework (though they just threw the parts away) and was tolerant of 20% "close enough" parts, meaning the plating will wear out on salty roads in 8 years instead of 10.

      Zero was the contractual maximum for BMW and Lotus. BMW will accept 5 ppm out-of-spec so long as you don't do it often. Lotus will kick back the whole shipment and threaten pulling your contract with one bad part. Do it twice in a year and the contract is gone with cancellation penalties. Every part for both was QA tested. We had to invest several million into automated multidimensional laser gauging QA equipment.

      These Tesla numbers are what you would expect of a garage-based manufacturer of dude-buggies, not a modern auto manufacturer. Perhaps they need to hire engineers and workers from Detroit instead of LA.

    • The fact that you are kept busy in the parts department is not relevant unless you consider the total number of cars shipped which is in the 80M+ range. And my experience for the last 3 cars I've bought is the vast majority need nothing but an oil change for the first 3-5 years.

    • by tsa ( 15680 )

      People have been building cars for over a 100 years. You shouldn't have to learn that kind of stuff from experience anymore.

    • Hope they get there soon.

      I love my Model S and had minimal factory defect issues when I got it.

      My next car will certainly be all-electric, and I really want it to be another Tesla.

      90k miles in 4 years, and it still handles like day one. Battery hasn't lost any capacity and I barely do one service a year. And every service is just them replacing the windshield wipers and tightening a few bolts and such.

      Frankly, my one complaint is that they don't tell me when to come back for service. Every other car I ha

    • by mjwx ( 966435 )

      ....in their parts department, I can tell you that pretty much every model of car manufactured has some certain parts from some certain providers that are notorious for failing. This is what led to Toyota achieving such dominance today: they learned the "Barney Fife" lesson - "Nip it in the bud, Anj! Nip it in the bud!". They relentlessly send their engineers into their parts provider's lines to perform front-line QA and "kaizen" (continuous quality feedback). Tesla seems like they want to get there, and will - I believe - but as with all complex systems, there is lots to learn (and relearn) along the way.

      This.

      There is an oft quoted statistic used by GM fanboys that goes something like "Toyota has had more recalls than " which on the outside is true but in reality it's because Toyota will fix absolutely anything where as GM waits until it's killed 17 people and there is a risk of a lawsuit.

      A toyota recall looks something like: In extreme conditions above 50C a mishandled seat adjustment handle may become loose if the planets align and you fail to find the jade monkey in time.

      A GM recall looks like: During n

  • It sounds like their processes are not in control. They need to use some good analysis and fix the mistakes in their production. It is cheaper and more efficient to do that than fix it after. Any programmer with their weight could tell you that. So could Demming and the Japanese who used his SPC techniques to blow past America in manufacturing quality. It sounds like Musk has never heard of it.
  • Your post brings up my question about the original article, where some guy said "40% of parts" required rework.
    What does that mean? The way it's written makes it sound like 40% of all the parts used to make a Telsa requires rework.
    What, 40% overall of all the parts needed to make a Tesla are bad? I call bullshit. This sounds like a reporter that is either misunderstanding what he was told, or intentionally misquoting.

    Or does it mean 40% of some certain part?
    I can believe there's a 40% rate on some certain p

  • https://en.wikipedia.org/wiki/... [wikipedia.org]

    The company said the employees might be conflating rework and remanufacturing. It also said every vehicle is subjected to rigorous quality control involving more than 500 inspections and tests

    if you need 500 inspections and tests, you're doing it wrong. My great hope when Toyota got involved was that they'd be able to teach them proper manufacturing technique. I guess they didn't. Maybe they found a culture fucked-up beyond repair and that's why they walked away...

  • in china, defective parts in electronics assembly can go up to 20% of your product... that never show up in the west, but is reworked if possible, and sold as "sound" on the local markets.

  • That fast, cheap or right - choose two. If you want it fast and cheap it isn't going to be right.
  • Tesla is no different than consumer electronics manufacturers or software companies: as long as QA is considered optional and the findings of the quality department are ignored to meet delivery times nothing will change. Drops in stock price are fully avoidable if management listens to QA and quality is valued more. The cost of acting on QA's findings is negligible compared to the common outcome. This is what happens when managers talk ROI and have no clue.
  • Keep paying top dollar for Musk's super-fancy golf carts folks!
  • I am happy to hear employees confirm that Tesla invests a lot of time and energy into manufacturing a high quality car instead of pumping out critically flawed death traps the way Chevy does.

  • That talk shit what a surprise. Funny when did gossip become news?
  • GM closed the plant as conditions were so bad, there were literal drug dealers and prostitutes working the production floor. NUMMI reopened as an experiment in teaching GM "The Toyota Way" but it was actually Toyota who got taught how to make shitty cars (my Tacoma from NUMMI is a rusted out, multiple recalled mess). Tesla likely rehired all the same people that should not have been working there in the first place and how is making 90s era GM quality cars.
  • Do they work? Are they fixed under warranty if not? Sounds like Elon's learned quite a bit from Detroit, after all.

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