Technical

Hey All, As a Model X reservist (18 k ish), I was wondering how much if any maintenance issues can be handled by owners who have worked on their previous ICE vehicles. The recent issues of reliability and a lack of convenient service centers has given me some pause. Do Tesla's lend themselves...

Hi guys, I searched around and found lots of Powertrain Problem reports, but never with ID: 963, DATA: 0x40000000. DMC FW: Line Current Not Equal Request fault. I plugged my car in last Thursday night, it charged for a while at 40A from the HPWC. After a while the HPWC did it's THUNK and I...

Tire Rack has had Pilot PS2's on back order for months. Service center luckily had one but I'm wondering what other tires people are considering for P85+ with staggered tires when we need a whole new set it if the Michelins aren't available?

So, I'm developing a new problem since a few weeks.. Between 120 kmh and 130kmh (75-85 mph), I have a hum that is quite apparent. It disappears as soon as I accelerate hard, but is there all the time when cruising at highway speed. Now I've read on the German TFF forum that I'm not the first to...

I got a new error message over the weekend. "ID1440 HVAC Coolant Pump UnderCurrent" Saw the message coming up over the weekend for the first time, but I don't drive everyday. However, I drove the Roadster last night and when I got back and plugged in, I noticed the Roadster was not cooling...

From: US regulators grant DMCA exemption legalizing vehicle software tinkering | Ars Technica The 12-month thing is a bit weird, I wonder if they're trying to tell automakers to get a handle on their security handling processes first.

Hi, First post and yes, I did do a search and found lots of discussions about torque steer, torque vectoring and the 85Ds impressive 864 ft-lbs of toruqe but nothing that explains this: The Model S electric motor makes 443 ft-lbs of torque at 0 RPM, right? That's driven through a 9.7:1 gear...

I started getting the following error message: Coolant System error Service required ID: 1425 Data:0x02000000 I took my car in and they told me that I needed to have the ESS coolant pump replaced. In the more detailed logs in debug mode, it says something to the effect that the coolant pump...

Hello At last technical inspection it was discovered oil leakage from the front bumper and slack in the undercarriage struts one rear suspension. Se picture. The damper is Bilstein type no appears to be F4-B2-TO. and 02-00-AB but these are not in Bilstein directory so some numbers must be wrong...

I'm in inland San Diego county so air conditioning is a must for me. I'm wondering how much air conditioning draws from the battery and affects driving range. I guess the heater would also draw a lot of energy, so same question for heater as well. And which you think draws more. Thanks in advance.

Guys Trying to gauge the life expectancy of a Tesla battery. I have a 2012 S85 with 57k miles and i have seen about 5% degradation over 3 years. I am wondering how old is the oldest roadster? What capacity degradation do these older roadsters experience with mileage/time? If you...

I'm hoping to reach some tesla techs in Canada to ask some questions about their experiences working for Tesla. Im interested in applying for the mobile technician position for the Calgary service centre, but many reviews I've found about working for tesla have not been good. I have not found...

Is it possible for us to dismiss the "Service Maintenance Required" message on the VDS, or can only Tesla do that? I read through the 1.5 manuals but don't see any information about the user being able to dismiss VDS alerts. My 1.5 annual service is scheduled in two weeks, but in the meantime...

Had my MCU replaced at Van Nuys SvC. Service invoice states the unit as being a Rev. M (1004777-00-M). Anyone know what's been changed since Rev. A? My guess would be lots of small things, but with the IC, one of the hardware revs beefed up the panel resolution. I'm wondering if anyone has...

Brief mention of Tesla on last night's 60 minutes. Hands off the Wheel - CBS News

I've been meaning to ask this question for weeks, but keep forgetting. There are some people who know quite a bit about solar arrays and solar conversion here. Back when I was in college one of my professors got a National Science Foundation grant to develop a new inverter for solar arrays...

Theoretically, imagine entire body of Model S/X is covered in solar panels (roof, trunk, hood). Will generated solar energy be higher or equal to vampire drain?

I am interested in knowing some specifics of the A/C system on the Model S. I just purchased a P-90 ludicrous edition. The A/C system works really well and would love to know the type of compressor it is using. I can tell it is a viable speed compressor and is very compact. Is it using AC or DC...

Yes not everyday, only about 45% of the days in the year have some precipitation. http://www.london.climatemps.com/precipitation.php Go up to Glasgow and it's only 55%. "only" It's only 35% where I am, and high powered RWD cars are just a pain on a wet day, in the bends or not. Along with...

Last friday my rear fan unit was replaced with a new one. now I'm getting again error message #1144 each time the fan kicks in. The fan is working fine because I hear it running and it cools down the PEM properly. I suppose a bad sensor or a bad contact somewhere.... any idea's ?

Link to to the current technology of IGBTs can be found here: Bosch Automotive Electronics - IGBT half bridge for (H) EV inverters - YouTube Is this new technology a big deal regarding semiconductor power switches or just a minor improvement? From the White paper: "Semiconductor power...

I had my roadster in the shop a few weeks ago for a noisy AC compressor. Casey at the Denver Service Center unbent a hose and wrapped some insulation around it, which mostly got rid of the noise. Today I was charging up before leaving and got HVAC: Consolidated Compressor Fault(s) ID:1428...

Hi all: I wonder if anyone can shed light on what I have noticed recently (I've never checked this before the last couple of days). After a Standard charge at the end of the day, my pack balances in a short time, usually in about 10 - 15 minutes. But recently, when I was checking on the pack...

I am moving an East Coast car to California. Looking for more leads, and to help others. I have helped others with two cars, and shipped a couple of ancient 911s via uship in the past. Mostly it is brokers but occasionally you get lucky and get an actual shipper. If you are really lucky...

Greetings! Figured this would be a good place to just throw out some notes on one of my projects, a custom battery management system for the Tesla battery modules I'm using in my off-grid solar project. (See that thread for details on that project). After some tinkering, it seems that I'm not...

Hi folks, Maybe I'm late with this question, but how does the Roadster charging system compare to the Model S? I've got the H.C. Sharp "CAN SR" adaptor, so I've been trying to learn the differences between the various Model S chargers out there. Looks like the Model S Single Charging...

First: My sincerest thanks to all of you as I have spent countless fascinating and enjoyable hours reading the Roadster Forum posts which have been profoundly informative. Special thanks to the gracious and knowledgeable ecarfan for sharing the 2008 Owner's Manual pdf and several helpful tips...

Any problems with the Roadster drive train. I had the motor replaced at 15000 miles, and now at 23000 miles they tell me it needs to be done again, at MY EXPENSE. I live in Ontario Canada and only drive it in the summer. Roadster is 2010 2.5

Even though there is no Ludicrous upgrade available for P85, I'm wondering, from a technical standpoint, if it could done and what the result would be. I'm guessing it makes no sense, otherwise Tesla would offer it. Start the mansplainin'!

Anyone encounter this type of noise? The noise changes with speed, and if I even tap the breaks very lightly the noise disappears. Sometimes after breaking the noise will stop completely but as soon as I hit a small bump in the road the rattling noise comes back.

Earlier this week I was in Cornwall and had to take the car over some pretty rough roads. When I was driving back on Wednesday night I slowed from 70 mph for a junction when I heard a bang (like something hit the underside of the car, followed by metallic rattling for a second or so). The car...

Curious about Inconel as used in the new battery pack connector, I looked it up on Wikipedia, and found that SpaceX has expertise. Thought it is interesting. A cross fertilisation between the two companies. From Wikipedia SpaceX uses inconel in the engine manifold of their Merlin rocket engine...

I live in USA and in summer there are a lot of thunderstorms. This brings the potential or power surges through home wiring. I often think to unplug our computers when there is lightning in the area. Now, my most expensive electronic equipment is my Model S. I have been unplugging my charger...

I recently heard something that made me do a little research into Switched Reluctance motors. Here's an article. It sounds like they'd be perfect for something like electric cars, since they are slightly more efficient than AC induction, and can be cooled more easily. But I really don't know...

Hey! I noticed in the picture of the underside of the Tesla Model S that the front drive unit is much smaller than the rear, which makes sense given the FDU is of lower power than the rear but it seems so much better packed? I have seen plenty of rear drive units and inverters (in the triangle...

Last night I decided to enable ACC on OVMS in my roadster, so that I could have the car run a cooldown cycle upon plugging in and prior to charging. This functionality works great. But I'm seeing something really wacky if I manually initiate a cooldown via SMS after the automatic cooldown has...

I see lots of folks mentioning tire repair kit and small compressor please post a link for said tire repair kit. flat = :cursing:

How long interupt of power is acceptble on the charge power (not the signals)? is less than one period or can it be for a 0.1 sekund or more? strange qustion but i have one smart ide how to charge faster with 3 phase i'm instered to over load the fuses for a short wail and than change phase...

Hi guys. After very heavy rain the car was back doing weird stuff, just like it did some months ago during heavy snow. The car drives normal, but when I turn it off weird stuff happens. I cannot lock my car with the keyfob (angry beeping) locking from inside works ok. Sometimes a...

I'm wondering if "mileage" is the best way to measure the condition of a used tesla vehicle. In ICE cars mileage is good indicator of the condition of the overall vehicle due to the various parts affected by the usage of a combustion engine over time. With less moving parts and less...

after only three days with my nice new P85 it had to go back to Sydney with no power to steering brakes park; awaiting part from USA it doesnt sound as yet like they know why this fuse blew and are replacing a relay. has anyone else had any similar probs with new P85 s ?? to their credit...

(mod note: split from Multi-gear EVs are probably the future) One motor per wheel is desirable for a bunch of other reasons, both traction and stability/handling benefit greatly from being able to independently apply arbitrary amounts of torque to each wheel. All the serious EV supercars are...

It will likely be a long time before anyone can actually measure these parameters to verify, but i'll take a shot at calculating them. Why is this important or of any interest? Because these electrical characteristics are used in the calculations made by the inverter to drive the motor using a...

(mod note: separate topic split from the Multi-gear EVs are probably the future thread) Unfortunately, it doesnt exactly work that way. If you immediately start a long descent you'll get regen limiting regardless of starting SOC. Cooler temps seem to result in regen limiting kicking in...

While installing my new stereo this weekend, I noticed something surprising. The bottom cover of my center console appears to have a light of some sort in it, as if it were designed to illuminate the little tray area on the floor below the center console. Do all roadsters have this, and has...

Last night I wrapped up a long three days of work on the roadster, swapping in all of the double-din interior pieces, and installing a Pioneer 8100NEX with all the bells and whistles. I must say that the double din conversion is DEFINITELY not for the faint of heart. There's quite a lot of...

I am interested in the impact of cold weather on EV range of the Model S and the reasons why cold weather has such an impact on EV range. The range calculator at Tesla's web site seems to be extremely optimistic--I don't think I trust it. I do not have a model S, so I am providing data I...

I've been doing some searching on the board but haven't found anything conclusive on the topic. Does anyone know a good source in dashboard for a +12V signal to the reverse lights? I'm in the process of converting my 2010 from the stock JVC single-din stereo, to a new double-din unit and it...

I drive a 2011 Roadster 2.5. Today I noticed a noice coming from the front after every brake activation. Until now I thought that the Roadster only creates some noice from the brake booster for the first few seconds when you start the car. It seems that now it has to create new pressure after...

As you may know, Tesla uses wirebonding to connect each cell to the rest of the pack, and that these bondwires also act as fuses to remove the cell from the pack if there is a current surge involving that cell. Does anyone know what material they use for these wires? It is silver?