Exploring a Tesla model X headlight

Special thanks to Gordon at eFIXX for sending this faulty Tesla model X headlight for us to explore.

This whole light was condemned and replaced because it seemed to be causing network issues. In reality it was only the control module that seems to have an issue. It comes off with four screws and two connectors. There are three connections to the light – power and a single data line.

I strongly recommend against trying to open these lights, as they are glued shut with a tough adhesive, and after wasting a lot of time with an angry Dremel it took a Ryobi cordless angle grinder with a cutting disk to get the very chewy polycarbonate lens off the front.

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  1. But we're supposed to believe that Tesla is saving the environment with this nonsense. What an absolute scam…

  2. A blatant example of engineered profiteering. Why change a (poorly ingress protected) control module when you can ream your customers for an entire headlight unit. Those siliconed parts that break when you take the cover off is a disgraceful stealthy anti tamper seal. Tesla are far from the only offender, but it steers one to the conclusion that it is a deliberate design decision to increase after sales revenue.

  3. What a piece of glued together plastic junk, makes me miss cars from the 70s, metal and glass, 3 or 4 screws and everything was apart

  4. What a pile of shite these cars are, I wouldn't own a Tesla if if was the last brand on earth! Have seen quite a few of them on recovery trucks already too!

  5. Is the zero ohm "jumping" link to allow tracks to cross? I have never understood why zero ohm capacitors were a thing, but that application would make sense.

  6. Hahaha, I brutally disintegrated a 125mm Norton cutting disk today 😂 The elevator shaft dit his best, but I still won.

  7. I'll keep my Series 3 Land Rover thanks, I can fix that with a ball of twine and a G clamp at the side of the road if I need to.

  8. We take them apart by putting them in the oven, that's if it's held together by a butyl tape type glue

  9. Wow, all you do to change a headlight in my truck is turn it 90 degrees and pull out. The headlight is a 100$ incandescent bulb, the OEM bulbs lasted a little over 100K miles over the span of 18 years – eventually failing after some hard off-roading and rock crawling. I replaced them all with LED equivalents.

    I paid 2000$ for the truck in 2020, that's the cost of two of these Tesla headlight modules.

  10. Splitting a headlamp enclosure is fairly easy; they're generally assembled using butyl rubber to seal the halves together. Bake it in the oven at around 66°C (150°F) for about ten minutes and the butyl will soften up more than enough to easily split the case.


  11. I can't wait for the DIY community to start repurposing these LED matrix lights to light up your garden or whatever actively base on image processing (lights up in the vicinity of a human, for instance)

  12. I remember a simpler world where you could get these things for 25 quid from Unipart, and afterwards change the bulb yourself, and they still did the same job.

  13. Who is the OEM? It looks like a cheap Chinese no-name shit quality part, for automotive standards.

  14. What's the best method for protecting such a PC board against copper corrosion through water contact?

  15. It was held together with screws? 😲
    Somebody at the factory must've won the lottery.

  16. Glad i was sitting down when you gave the price out , crazy amount for what probably costs $200 to make

  17. There is no reason for that lighting module to be so difficult to repair other than greed. Hostile product design like this is EXACTLY why we need Right to Repair!

  18. It's amazing that those little LEDs can put out that much light to be able to see with with on a vehicle! The advancement of the little LED from years and years ago when I first got into electronics is astonishing!!

  19. The fan gives the game away. This is transient throwaway trash, and non recyclable too.

  20. The "tech" side of this may seem ridiculous and excessive (which it is) but in the UK, at least, all of these "new fangled high power lights" have to have self levelling and washing systems built in as standard; the levelling for obvious reasons and the washers to prevent diffusion of the light in potentially blinding directions. Unfortunately, this is also conducive to the business model of "make something that can't be fixed so that we can charge for a small ransom for replacing it/fixing it a dealership". Do I want the headlights as per my old Mini that just glowed, rather than shone or do I want the latest ones in my BMW with a stolen badge? Admittedly, prefer the latter for a multitude of reasons – at least so I can still see when someone coming the other way has their light lit up like a football stadium. Excellent video as ever, Clive – thanks 🙂

  21. Tesla doesn’t use dealers & distributors, who would normally be responsible for stocking the components to repair the module. Tesla makes more money on the module obviously, but also doesn’t have to stock all of those individual components for years. That is a substantial inventory they wold have to carry themselves, at a significant cost.

  22. It seems stupid to attach the module to the headlight let alone have the module located somewhere it meets the elements so often.

  23. Disappointed you did not light them LEDs up, Clive, Otherwise great content as usual, thanks!!!

  24. Clive, what about next time seeing if you can power it up and even maybe sniff some CAN bus traffic?

  25. There are zero reasons why this couldn't be made modular and user serviceable, and one reason why they didn't, profit.

  26. There are zero reasons why this couldn't be made modular and user serviceable, and one reason why they didn't, profit.

  27. I wonder if the age old trick of baking the headlight unit would be enough to get the front glass off – quite common in car modding

  28. Definitely overly complicated for a headlight module ! I wonder if Sandy Munro is aware of this ? Seems counter to his philosophy. Tesla is a customer of his consulting firm. Water getting into Tesla modules, is a running theme. Just ask Rich Rebuilds.

  29. The glue of an older type of Tesla Model S headlight could still be opened by heating it in an oven as Rich Rebuilds has demonstrated here
    It is a scandal that the whole headlight got replaced when only the electronic unit failed and to me this seems to be a manufacturing error that should be covered by warranty.

  30. Yeah…
    I don't care about lasers and LED headlights. Not at 1200 clams per light "module".
    I'll stick to $12 H14 style incandescent bulbs thanks. Screw these new cars. Screw all their computers and screw all their data harvesting.

  31. This is a great video BC thanks. Could you do more videos on automotive lighting really appreciate if you could show how to systematically troubleshooting these modules even the Chinese made one's too. Thanks again for this very interesting video.

  32. Part of the problem with changing the module is that the headlight has likely also had water in it. So, there’s a high chance you’ll replace the module and then have the rest of the light fail soon after. And, chances are they’d charge almost as much for just the module as the whole assembly.
    For me, I’d be looking for a used module and hoping it’d all last for a while longer before having to replace the whole thing.

  33. It’s the way of the world, replace the lot, especially if it is under warranty. I would have thought the manufacturer would have a waveform available for their techs that you would be looking for and to test the module as a stand alone, and if you don’t see it, replace the module. If you do see it, then replace the headlight assembly. Too much time diagnosing seems to be not what one does especially in dealerships.