I have received the 400v controller upgrade from GS Technology and everything works perfect; I tested the heat, cool ac, and took for a spin and car is charging perfectly.
As I am the first person from the USA to do this I wanted to share information in order to make this process a little more simple for other people. The process took about 3 weeks to ship off and get the package in return; I literally grew 2 new grey hairs but i'll leave that photo out.
Discussing with other members of the community one of the main issues with the roadsters is the 400v controllers fail after some time. It's been realized that the current HVAC controller board they created for the Tesla Roadster is no good; I wouldn't say no good as it's still working and I had no issues with mine; however, no one thought these cars would still be operable 10 years in time and here we are.
Also discussing with members one has seen three controllers needing replaced in the passed month and possibly more from other peoples threads in the passed month.
What is the 400v controller for people not tech savvy? It's what converts the 400v DC electricity to 12v in order to power various things like the AC, Stereo, Fans, Radiator, Pump, and other components in the car. This is why if something is wrong with the controller or goes bad you can't charge the car since the power is linked to the 400v controller.
The controller solves Error codes #273 and #276 - BSM: V_ess too low at end of precharge
The conductors on the board are now two way instead of one way; so if something faults with the 400v controller you will still be able to charge the car as the 12v conversion conductors is separate from the other connections.
Supposedly the unit is better sealed from humidity once closed up as well.
You can contact me if any questions.
-----------------------
EN:
we had this issue of defective Eberspächer's HVAC very often, especially the last 2 years.
The newly developed version from us has the following advantages compared to the original Tesla (Eberspächer) version:
internal separated Precharge
-> this means that the vehicle is always ready to drive, regardless with or without PTC heating
-> if the PTC heater really fails, it is guaranteed that you can still drive and charge.
Light pipe instead of the LED in the housing
-> Known problems of the HVAC are "BSM Isolation Faults" after washing the vehicle
-> our new version has an optical fiber connection and is electrically separated from the housing
new power devices in SMT Technology
- > the new power semiconductors are all integrated on the circuit board (PCB), no risk of insulation faults to the housing
-> the semiconductors have much better electrical and thermal characteristics
Left / right hand drive compatible
-> the differences left- / right-hand drive are only in the vehicle position / bracket
-> the new HVAC fits both versions (LHD, RHD)
VG / Best Regards eMG
Martin - GS Technology <[email protected]>
-----------------------
Instructions for taking out the 400v controller.
1. Inhibit the car
2. Take the protective plastic cover off for easier access to the bolts.
3. There is only 3 bolts to unscrew and 7 plugs.
4. Disconnect the Black cable first; I assumed this was the power, then the Bonnet cable for the hood close indicator. Car will beep; I guess it's the power or signal of 400v controller disconnecting from VMS
5.White plugs unhook and slide out but do not come out; they slider out to a certain point allowing the Orange plug to be released.
6. When you received back I hooked up in reverse order; Plugs first, then Black power cable last.
7. Success
Same 3 bolts just different angle
As I am the first person from the USA to do this I wanted to share information in order to make this process a little more simple for other people. The process took about 3 weeks to ship off and get the package in return; I literally grew 2 new grey hairs but i'll leave that photo out.
Discussing with other members of the community one of the main issues with the roadsters is the 400v controllers fail after some time. It's been realized that the current HVAC controller board they created for the Tesla Roadster is no good; I wouldn't say no good as it's still working and I had no issues with mine; however, no one thought these cars would still be operable 10 years in time and here we are.
Also discussing with members one has seen three controllers needing replaced in the passed month and possibly more from other peoples threads in the passed month.
What is the 400v controller for people not tech savvy? It's what converts the 400v DC electricity to 12v in order to power various things like the AC, Stereo, Fans, Radiator, Pump, and other components in the car. This is why if something is wrong with the controller or goes bad you can't charge the car since the power is linked to the 400v controller.
The controller solves Error codes #273 and #276 - BSM: V_ess too low at end of precharge
The conductors on the board are now two way instead of one way; so if something faults with the 400v controller you will still be able to charge the car as the 12v conversion conductors is separate from the other connections.
Supposedly the unit is better sealed from humidity once closed up as well.
You can contact me if any questions.
-----------------------
EN:
we had this issue of defective Eberspächer's HVAC very often, especially the last 2 years.
The newly developed version from us has the following advantages compared to the original Tesla (Eberspächer) version:
internal separated Precharge
-> this means that the vehicle is always ready to drive, regardless with or without PTC heating
-> if the PTC heater really fails, it is guaranteed that you can still drive and charge.
Light pipe instead of the LED in the housing
-> Known problems of the HVAC are "BSM Isolation Faults" after washing the vehicle
-> our new version has an optical fiber connection and is electrically separated from the housing
new power devices in SMT Technology
- > the new power semiconductors are all integrated on the circuit board (PCB), no risk of insulation faults to the housing
-> the semiconductors have much better electrical and thermal characteristics
Left / right hand drive compatible
-> the differences left- / right-hand drive are only in the vehicle position / bracket
-> the new HVAC fits both versions (LHD, RHD)
VG / Best Regards eMG
Martin - GS Technology <[email protected]>
-----------------------
Instructions for taking out the 400v controller.
1. Inhibit the car
2. Take the protective plastic cover off for easier access to the bolts.
3. There is only 3 bolts to unscrew and 7 plugs.
4. Disconnect the Black cable first; I assumed this was the power, then the Bonnet cable for the hood close indicator. Car will beep; I guess it's the power or signal of 400v controller disconnecting from VMS
5.White plugs unhook and slide out but do not come out; they slider out to a certain point allowing the Orange plug to be released.
6. When you received back I hooked up in reverse order; Plugs first, then Black power cable last.
7. Success
