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  1. Ciaopec

    Any Electrical Engineers that teach....

    I haven't found a answer anywhere on line, though I may not be asking the right question; may not understand what I'm reading; or, (heaven forbid) cannot understand animations. Do the stators "pull" the rotor around or "push" it. And, where does the "induction" come from in AC induction? The...
  2. John W. Ratcliff

    Source for red brake calipers on a Roadster?

    I searched the various brake threads on this forum, but I couldn't find an answer to this question. The Roadster is pretty sexy looking to begin with but the one thing I think would really make my car pop is some red brake calipers to accent my Fusion Red Roadster Sport. Can anyone recommend a...
  3. L

    Roadster Low beam headlights don't work

    Low beam indicator was on my display. My headlights don't work and been in the shop several times with no fix. They replaced the lights - told me headlight was broken which was strange because it didn't look broken to me (no accidents). They can't seem to diagnose why this is happening. Any ideas?
  4. N

    Charging Station Installation Costs

    Hello I'm an EE student working on a case study and for my modelling I need to know the costs for installing charging stations for EVs. This brought me to this forum If you can hand me this information with a reliable source I'd really appreciate it. thanks in advance.
  5. DanielFriederich

    Speedometer and kW resetting

    Had a sudden reset of my dash while driving and the two needles (speed and kw) were totally wrong afterwards... Here is how you do the reset: go into service mode screen go to Controls hit IP NEEDLES RESET (maybe repeat if the two needles are still not in correct place) both needles will be...
  6. mdavis

    Error 903?

    [I couldn't find an error decoder on the Internet] Car is a Sport 2.0 Charges fine Put it in gear (F or R) and it doesn't engage, no creep, followed by error code 903 and "start in a safe location". At one point the motor would stutter briefly (a little disturbing) before throwing the error...
  7. A

    Battery thermal management

    So the past couple days have been pretty warm here in SoCal and my Model S has been conditioning the battery. I hear the fans spin up and this is further confirmed by my diagnostic logs. The DC/DC converter outputs anywhere between 300-600 watts compared to the usual 50 watts while the car is in...
  8. D

    Micro hydro to power my Teslas, what infrastructure do I need?

    I've got an opportunity to install an Archimedean screw micro hydro scheme for power generation on a river running alongside my business and was planning on using the energy generated to power my MX and the 3s (when they arrive). I've been told that the turbine will generate 5kW peak power...
  9. John W. Ratcliff

    How much of a depreciation hit do you take if you sell a very high mileage Roadster?

    I guess we have a possible answer. Someone just sold a Tesla Roadster Sport with over 76,000 miles on it! The answer..apparently...$47,700. So, put that in your pipe and smoke it. Drive the crap out of your Roadster, run it into the ground, and that appears to be the price floor. Tesla...
  10. A

    Bricking protection trigger voltage

    Apologies if this has been reported, but a quick search did not turn anything up. Anyone know the precise voltage that is programmed into the BMS whereby the contactors open and further power is not delivered until the battery is charged? Does it vary by model? Model X vs S? 90 kWh vs 85?
  11. A

    6-2 UF-B to 14-50

    I currently have 6-2 UF-B wire to power a siemens versicharge ev charger. Can I use a 14-50 plug to replace the charger and use the mobile connector, using the existing wire? thanks
  12. P

    Roadster embossed VIN location

    I am EU based roadster owner, and I had to take official vehicle inspection after 4 years of use of the car. The rules may be different at each country, however I expect that in EU it may be similar. A mandatory condition to pass the inspection is to show the embossed VIN number, ie "hardwired"...
  13. J

    Regenerative charging and life on a hill.

    Let’s say your home, work, shopping, and entertainment destinations are all located at some point along a more or less straight sloping road. Let’s say the slope is a generally monotonic 10% grade more or less. The distance between destinations is not so important, but let’s say between 5 and 50...
  14. Dwalker13

    GPS Tracking Device for the Roadster

    Has anyone had a GPS Tracking device installed on their Roadster. I am thinking about getting the Rocky Mountain GPS hardwired in the car just in case it gets stolen. I had a break in and someone stoled the second set of keys for my Roadster
  15. tvuolo

    Door release loose?

    Hi guys, My roadster developed a squeak whenever I opened or closed the driver door. It's been getting worse, so this weekend I went to go lubricate whatever it was. As it turns out, I don't think it's the hinge, I think something holding the rubber door release is slowly coming undone. The...
  16. S

    Tesla Maintenance

    Hello Everyone, I am a mechanical engineering student and I am doing some research on EV maintenance. Would you please answer a few questions of mine :) 1-) Is it possible to bring my Tesla to an independent service center and get it maintained or serviced? If so would it be cheaper? Any real...
  17. G

    Tesla Roadster Sport - DIY Shock Adjustment

    I want to try out different shock settings on my Roadster Sport. Is it something I can do on my own without going to garage or Tesla service center? Can I reach the shock adjusting knots without the car lifted? Thanks!
  18. nexsuperne101

    How hard is it to steal a Tesla?

    Hi All, I am waiting for my Model 3 to be delivered, but I want to know how good the security is. My Nissan Leaf can be started by sitting in it with the key in my pocket, but if it is in drive mode and I put the keys outside the car, I can still drive off. I don't know how far I could drive...
  19. John W. Ratcliff

    Driving a Roadster close to maximum range

    Since I've only owned my Roadster for about two weeks, I don't yet have any experience about reaching close to the maximum range. However, this Saturday, I want to drive it 140 miles (70 miles each way) with zero chance of being able to charge it along the way. My car just had it's annual...
  20. gregd

    Idea for dealing with the Roadster's "Hoovering"

    Hi folks, I was talking to one of my peers at work about the Roadster's air flow design, and it's acute ability to vacuum up all the little bits of cruft along our roadways, and pack them into the PEM and motor. We've discussed here already methods to put screens and filters around the...
  21. John W. Ratcliff

    Roadster Immobilized

    So, I've had my Roadster for about two weeks and have been really enjoying it. But, just two weeks in, I find myself in a situation with it. Here's what happened. Last night I went out to a restaurant, and I locked the car before I went in. When I came out, and hit the key fob to unlock it...
  22. DoctorZ

    Roadster HPC smoke detector

    Recently bought an '08 Roadster to keep my P85+ company. The former came with its (unused) HPC but....there was no smoke detector included. Any comments regarding availability of the appropriate detector and its importance much appreciated. Thanks!
  23. G

    Does Roadster Sport 2.5 have 1 reverse light or 2?

    I have a 2012 Tesla Roadster Sport 2.5. May I ask if it should have 1 reverse light or 2, as I just noticed today that mine (RHD) has only got the left side reverse light on when reversing. Is this normal? I searched the user guide but found nothing mentioned. Appreciate your advice. Thanks...
  24. John W. Ratcliff

    Anyone know how to get a replacement toolkit for the Roadster?

    I just dropped of my brand new (to me) Roadster for its annual service and, apparently, the toolkit which comes with the car is missing. I spoke to the previous owner and he never had it either. The Tesla service center (St. Louis) doesn't have a toolkit either and cannot remove my wheels to...
  25. N

    Heater led comes on when A/C is on, is that normal for Roadster 1.5?

    When I turn on the A/C in my Roadster 1.5, the A/C light comes on, but often the heater led also comes on by itself a little bit later, which doesn't seem right to me. I thought *maybe* the car uses a fan from the heater unit to help flow A/C air or something, but can't think of any other...
  26. n2mb_racing

    Wh / mile

    Driving around a service loaner Model S today I noticed that the Wh / mi for the Model S seems to match exactly what I get in the Roadster at 65 mph: ~267 Wh / mi. Interesting. I knew the Model S was slippery, but I still thought it used quite a bit more power / mile, since it weighs almost...
  27. A

    Anomalous 12 V maintenance?

    I've been keeping tabs on my car's sleeping behavior and found some interesting data today (see graph). I have sleep enabled and always connected off. 1. Why does the DCDC converter voltage begin at 14.3 V and decline to 14.1 V? I thought the voltage should start at ~13 V for a partially...
  28. wdolson

    Thoughts About an Altimeter Ap

    My father has always had altimeters in his cars. He was in the USAAF in WW II and I think part of it was just being a fan of aircraft instrumentation. He passed down a car to me many years ago that still had the altimeter in it and I've moved it from cars ever since. The thing is 50 years old...
  29. T

    How far into the future before this happens to Teslas?

    http://jalopnik.com/this-ancient-laptop-is-the-only-key-to-the-most-valuabl-1773662267
  30. James Anders

    Bare Aluminum Structure? Why No Protective Coatings?

    It seems to me that the chassis and much of the under-structure of Model S (and probably Model X) is bare aluminum with no protective coating. As a design engineer I've always seen and specified chromate conversion coatings (either a dip or spray) to reduce the possibility of corrosion and...
  31. John W. Ratcliff

    For non-electronic maintenance, can you use your regular car mechanic?

    I have a great mechanic who has worked on all of my cars (Ferrari, Alfa Romeo, NSX, Porsche, BMW, etc.) I realize that for anything related to the electronic systems on my Roadster I have to take it to Tesla. However, if it needs any normal general car work; tires, brakes, suspension, is there...
  32. J

    Wow, Roadster very rough - got shocks?

    Want (ed?) a Roadster, still do I guess, but first test drive, wow, roll over a crease in road and suspension bangs up through thin seat into body with sort of a clank like there are no shocks. Is this something drivers get used to, that they want, or what?
  33. emir-t

    Any way to tell if a Model S has the dual chargers without feeding 11+kW into the car?

    We live in Turkey and a friend of mine just bought a P90D. Way things work here is you purchase through an importer "dealer" who goes through all the cumbersome tasks for you including picking it up from Tilburg/NL to importing to registering. He paid the extra for the dual charger option yet...
  34. Buckeye2320

    CNET - Nanowire Battery Charged 200,000+ Times

    CNET had this posted today: Revolutionary nanowire battery tech can be charged over 200,000 times Revolutionary nanowire battery tech can be charged over 200,000 times I know that Tesla will state "If your battery is better than ours, send us a sample!", but how many charges can a Tesla...
  35. TheTalkingMule

    Over the Air Governor - Insurance Savings

    Since we're essentially driving by wire here(with radar), why not allow for a voluntary governor program to run in the background in exchange for insurance premium savings? Would a simple speed limiter at 68 mph be enough for significant insurance savings? Would it be considered dangerous...
  36. L

    What powers Backup power supply (BPS)?

    When BPS is running, which bricks does it take its power from? I ask about a Roadster 2.0 that has a 12 volts battery, not a Roadster 1.5. I have problem with brick #28 never reaching the same voltage as the other bricks when the car is charged, even if the car is plugged in and has been...
  37. John W. Ratcliff

    Shark gills

    I've noticed that some Roadsters have the shark gills in the front and some don't, going all of the way back to the 2008 models. Was this just some sort of styling option that buyers got to choose from?
  38. longshadows

    On board generator

    Any thoughts as to why Tesla automobiles don't incorporate any sort of internal generator, which might run when car us in motion, if not charging the main battery itself, might supplement power usage of accessories, like lighting, a/c and heating. Any extension of range has got to be a winner.
  39. longshadows

    HEatingAC battery depletion

    As a Tesla newby, and a depositor for a |||, been wondering how much of a toll the use of on board heating and air conditioning takes on the battery. The announced miles/charge of "215" on the ||| must be an average, or maybe without use of climate controls. I assume that unlike an ICE vehicle...
  40. J

    Nicks old patents Imagine

    Imagine There are old patents that are Dr. Tesla had that have never been implemented from what i understand of them there is a way to transmit electricity with out wires it is also my understanding that this is not "micro waves " it is a one wire or no wire. Most of what we use fall into AC...
  41. S

    Tesla Model S Service Manual, Wiring Diagram, Theory of Operation Guides

    Tesla Model S Service Manual, Wiring Diagram, Theory of Operation Guides Tesla Model S Service Manual, Wiring Diagram, Theory of Operation Guides
  42. N

    Help identify these springs & shocks...

    The ride height on my 1.5 is about 0.75" lower on one side which Tesla diagnosed as a blown rear shock. Rob at Dietschwerks too a look and noticed the springs and shocks didn't match left vs right. On one side the shock is labeled Tesla 6000012 and F4-BE3-E071-T0 which seems to be normal for...
  43. R

    Who has funded model 3?

    In most media regarding cars is Tesla Model 3 now in focus and Elon Musk says that the financing model is made possible by the proceeds from the model S. Although I personally rank Elon as our new god concerning mobile transport I would still appeal to him at this point. Has he forgotten us who...
  44. John W. Ratcliff

    Question from potential new owner

    I have been doing a fair amount of research on the Tesla Roadster and I'm now almost completely certain that it is going to be the next car I buy. I really only have one big concern, one that I'm hoping owners could help answer for me. The thing is, I have never actually even seen a Tesla...
  45. gavine

    Mind-Blowing Printable Magnets

    There has to be automotive applications for these....VERY cool (skip ahead to 2:00 if you want to get to the printable magnet part) -->
  46. A

    How Many "T" is a Tesla

    Once you experience the ride of a Tesla, one starts to inquire. The complex science of what drives these cars is almost too complex to image. I do wonder how Mr. Tesla understood it all... Can one translate HP to T? Please forgive if this is not even a question.
  47. H

    EV Battery manufacturers growth plans

    We've heard a lot about Tesla/Panasonic plans to be able to produce 500k vehicle battery packs per year by 2020 through the GigaFactory. This is great, but have we heard any plans from other EV battery manufacturers of their growth plans? Can someone help with these figures, if any exist?
  48. N

    Accessing the 12V feed to PEM (1.5)

    Is there an easily accessible way to probe the 12V power feed going to the PEM on a 1.5? My Roadster sometimes glitches on key ON requiring the 60A cabin fuse to be pulled to reset things. Measuring at the cabin fuse box the 12V rail is stable and clean (13.6V, ~100mVp-p) under steady load...
  49. eugenel

    Unable to open Roadster boot/trunk

    Help! I brought my Roadster out of UK winter storage (in a carcoon in my garage) and all was well until I attempted to open the boot/trunk. I tried the button on the dash first - nothing (not even the sound of a solenoid). I tried double-clickng the release button on the key. Nothing. In...