VAG PTC Air Heater: Difference between revisions
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m Added some notes for the high voltage connector in VAG vehicles. Even if the connector part number is the same, there are different variants of them. Some will require modifications (e.g. cutting the top guides) for the connector to fit. |
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**TE-NO: 828985-1 (WIRE SIZE 4mm²) | **TE-NO: 828985-1 (WIRE SIZE 4mm²) | ||
**TE-NO: 963292-1 (WIRE SIZE 2.5mm²) | **TE-NO: 963292-1 (WIRE SIZE 2.5mm²) | ||
Or it can be salvaged at a junk yard from these part numbers: | |||
* VW 1EA 973 702 X (The connector itself. Note: The 5119B variant fits the PTC perfectly unlike 3220B that requires some minor modifications) | |||
* VW 1EA 971 475 B (A HV cable that connects to the PTC Heater. It uses the correct 5119B variant) | |||
===Low-Voltage Connection=== | ===Low-Voltage Connection=== | ||
VW 1J0 973 | VW 1J0 973 703 | ||
=== Potential Equalization === | === Potential Equalization === | ||
| Line 74: | Line 78: | ||
==Dimensions and 3D Model== | ==Dimensions and 3D Model== | ||
3D Model available at GrabCAD: <ref>3D Model available on GrabCAD: https://grabcad.com/library/vw-idx-air-ptc-1</ref> | 3D Model available at GrabCAD: <ref>3D Model available on GrabCAD: https://grabcad.com/library/vw-idx-air-ptc-1</ref> | ||
heater matrix is 244mm long x 204mm wide x 27mm thick | |||
the length of the entire unit is 284mm long | |||
==Control== | ==Control== | ||
| Line 85: | Line 94: | ||
<references /> | <references /> | ||
[[Category:Heater Air]] | |||
Latest revision as of 17:56, 7 December 2025
Overview[1]
PTC heater assembly found in VW ID series (ID.3, ID,4, ID.Buzz, etc.), as well as other VAG EVs (Seat, Skoda, Audi, etc).
- According to VW, the nominal voltage is 150 to 475V, but findings suggest it’s usable from 180VDC.
- It is made by Valeo and has a operational range between 0 and 6kW.
Part Numbers
| VAG Part Number | Vehicles Used it | Tested? | |
|---|---|---|---|
| 1EA963581AQ | No | ||
| 1EA963581BM | No | ||
| 1EA963581BN | No | ||
| 1EA963581C | No | ||
| 1EA963581D | Yes | ||
| 1EA963581F | Yes | ||
| 1EA963581G | No |
Connectors
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High-Voltage Connection
TE HVU 280 series
- Mating housing: 1-2318082-2 (key B)
- Contacts:
- TE-NO: 2-968859-3 (WIRE SIZE 4mm²)
- TE-NO: 2-968857-3 (WIRE SIZE 2.5mm²)
- Seals:
- TE-NO: 828985-1 (WIRE SIZE 4mm²)
- TE-NO: 963292-1 (WIRE SIZE 2.5mm²)
Or it can be salvaged at a junk yard from these part numbers:
- VW 1EA 973 702 X (The connector itself. Note: The 5119B variant fits the PTC perfectly unlike 3220B that requires some minor modifications)
- VW 1EA 971 475 B (A HV cable that connects to the PTC Heater. It uses the correct 5119B variant)
Low-Voltage Connection
VW 1J0 973 703
Potential Equalization
M6x1 lug
Dimensions and 3D Model
3D Model available at GrabCAD: [3]
heater matrix is 244mm long x 204mm wide x 27mm thick
the length of the entire unit is 284mm long
Control
EVCreate CAN Gateway[1]
DIY with Teensy[4]
Case Studies
Volvo P80 heater core adapter (to be published)
- ↑ 1.0 1.1 Volkswagen air PTC heater control via LIN bus: https://www.evcreate.com/volkswagen-air-ptc-heater-control-via-lin-bus/
- ↑ The High-Voltage System in the ID.4: https://static.nhtsa.gov/odi/tsbs/2021/MC-10186407-0001.pdf
- ↑ 3D Model available on GrabCAD: https://grabcad.com/library/vw-idx-air-ptc-1
- ↑ https://github.com/Tom-evnut/ID3-LIN-Bus/tree/main/Teensy%20Arduino%20Lin%20examples/T4_2Lin_explorer_ID34_PTC