VW A/C Compressor: Difference between revisions

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This type of compressor has been widely used in Volkswagen and Audi hybrid vehicles and can be found cheaply.
This type of compressor has been widely used in Volkswagen and Audi hybrid vehicles and can be found cheaply.


=== Part Numbers, Revisions and Refrigerant ===
 
3d Scan: https://grabcad.com/
 
== Part Numbers, Revisions and Refrigerant ==
The vehicle, date and refrigerant options have been scavenged from type stickers on compressors in ebay auctions. The list is not complete but supposed to give an overview.
The vehicle, date and refrigerant options have been scavenged from type stickers on compressors in ebay auctions. The list is not complete but supposed to give an overview.
{| class="wikitable"
{| class="wikitable"
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Overview of A/C Compressors used
Overview of A/C Compressors used
!Part Number
!Part Number
!HW & SW Revision <ref>[https://openinverter.org/forum/viewtopic.php?p=35520#p35520]</ref>
!HW & SW Revision <ref>Hardware and Software Revisions: https://openinverter.org/forum/viewtopic.php?p=35520#p35520</ref>
!Vehicles
!Vehicles
!Years
!Years
Line 99: Line 102:
Generally the switch to R1234yf compatibility was around Juni 2016. The oil used for all compressors is 120ml PAG SP-A2.
Generally the switch to R1234yf compatibility was around Juni 2016. The oil used for all compressors is 120ml PAG SP-A2.


=== LIN Bus Communication ===
== LIN Bus Communication ==
 
The baud rate of the LIN bus is 19200 baud.<ref>Baud Rate: https://openinverter.org/forum/viewtopic.php?p=42208#p42208</ref>
 
{| class="wikitable"
{| class="wikitable"
|+Control and Answer Messages to/from the Compressor <ref>[https://openinverter.org/forum/viewtopic.php?p=25580#p25580]</ref>
|+Control and Answer Messages to/from the Compressor <ref>CAN Bus Commands: https://openinverter.org/forum/viewtopic.php?p=25580#p25580 Revised: https://openinverter.org/forum/viewtopic.php?p=36543#p36543</ref>
!ID
!ID
!Description
!Description
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|8
|8
|Enhanced
|Enhanced
|HV OK (0 for voltage < 200V, 1 for voltage > 200V)
|HV OK:
0 for V < 200V
 
1 for V > 200V
|always 112
|always 112
|RPM set from command
|110 for V<200V,
14 for V>200V, AC not running,
46 for V>200V, AC running
|?
|?
|RPM set from command
|Temperature:
|110 for V<200V, 14 for V>200V, 46 when running
 
|0
160 at 24°C,
|0
 
Scaling unknown
|54 at 109V, 28 at 56V 83 at 166V  
|54 at 109V, 28 at 56V 83 at 166V  
scaling: Voltage/2
scaling: Voltage/2
|?
|-
|-
|32 (0x20)
|32 (0x20)
|Command to the compressor
|Command to the compressor
|6
| 6
|Enhanced
|Enhanced
|RPM (decimal from 20-250)
|RPM (decimal from 20-250)
Line 144: Line 160:




=== Electrical Connection <ref>[https://openinverter.org/forum/viewtopic.php?p=25580#p25580]</ref> ===
==Electrical Connection<ref>Electrical Connections: https://openinverter.org/forum/viewtopic.php?p=25580#p25580</ref>==
connectors are:
connectors are:


Line 151: Line 167:
1J0973714 8= +12V , 5= GND, 2= LIN
1J0973714 8= +12V , 5= GND, 2= LIN


== References==
[[Category:VAG]]
<references />
<references />
 
[[Category:AC Compressor]]
 
[[category::OEM]] [[category::VAG]] [[category::HVAC]]

Latest revision as of 16:19, 20 December 2024

This type of compressor has been widely used in Volkswagen and Audi hybrid vehicles and can be found cheaply.


3d Scan: https://grabcad.com/

Part Numbers, Revisions and Refrigerant

The vehicle, date and refrigerant options have been scavenged from type stickers on compressors in ebay auctions. The list is not complete but supposed to give an overview.

Overview of A/C Compressors used
Part Number HW & SW Revision [1] Vehicles Years Refrigerant
12E820803x
12E820803B HW 4 - SW 4 VW e-Golf VII, VW e-Up 05.2014, R134a
12E820803C HW 4 - SW 7 Audi A3 1.4 TFSI e-tron 12.2013, 03.2014 R134a
12E820803D HW 5 - SW 4 Audi A3 1.4 TFSI e-tron

??

07.2015

07.2018

R134a

R134a, R1234yf

12E820803E HW 2 - SW 5 Audi A3 1.4 TFST e-tron

VW Passat B8 GTE

03.2015, 09.2015

06.2016

R134a

R134a, R1234yf

5QE816803x
5QE816803 HW 2 - SW 7 Audi A3 1.4 TFSI e-tron

VW Golf VII GTE

VW Passat B8 GTE

03.2015, 11.2015

08.2016, 08.2017

R134a

R134a, R1234yf

5QE816803A HW 3 - SW 9
5QE816803C HW 2 - SW 6 01.2018 R134a, R1234yf
5QE816803D HW 2 - SW 8
5QE816803F HW 2 - SW 7 07.2018 R134a, R1234yf
5QE816803H HW 3 - SW 9 VW Passat B8 GTE 01.2016 R134a

Generally the switch to R1234yf compatibility was around Juni 2016. The oil used for all compressors is 120ml PAG SP-A2.

LIN Bus Communication

The baud rate of the LIN bus is 19200 baud.[2]

Control and Answer Messages to/from the Compressor [3]
ID Description Length Checksum Type Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7
31 (0x61) Answer from the compressor 8 Enhanced HV OK:

0 for V < 200V

1 for V > 200V

always 112 RPM set from command 110 for V<200V,

14 for V>200V, AC not running,

46 for V>200V, AC running

? Temperature:

160 at 24°C,

Scaling unknown

54 at 109V, 28 at 56V 83 at 166V

scaling: Voltage/2

?
32 (0x20) Command to the compressor 6 Enhanced RPM (decimal from 20-250) Bit 0: Start, Bit 2: Activate 0 0 0 0


Electrical Connection[4]

connectors are:

HVA 280 KEY_D from TE +HV left side (near to the 12V conn.), -HV right side (far from the 12V conn)

1J0973714 8= +12V , 5= GND, 2= LIN

References

  1. ↑ Hardware and Software Revisions: https://openinverter.org/forum/viewtopic.php?p=35520#p35520
  2. ↑ Baud Rate: https://openinverter.org/forum/viewtopic.php?p=42208#p42208
  3. ↑ CAN Bus Commands: https://openinverter.org/forum/viewtopic.php?p=25580#p25580 Revised: https://openinverter.org/forum/viewtopic.php?p=36543#p36543
  4. ↑ Electrical Connections: https://openinverter.org/forum/viewtopic.php?p=25580#p25580
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