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Audi Q4 e-tron

Climate parameters

The Audi Q4 e-tron has 17 climate parameters.

● Confirmed◆ In testing○ Supported× Not supported

How to read a parameter card

A/C compressor power, actual Q4ETRON_AC_COMPRESSOR_PWR_ACTConfirmed

  • Request22 08 00
  • Service 22DID 0800
  • Module746 → 7B0
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 40 to 55 of the reply, 16 bits.

0x0000 = 0 → 0 W

Formula
val
Range
0 to 65535 W
Unit
W

Confirmed for 2021, 2024. In testing for 2022 to 2023, 2025 to 2026.

  1. The parameter's name and its ID in the OBDb. Confirmed shows when a response from a real car confirms the parameter.
  2. The clutch mark shows a Connectable, a parameter that Pelican surfaces in its interface.
  3. The service and PID/DID asked for, the control module it's sent to, and how often Pelican asks.
  4. The reply's bytes. The parameter's bytes are blue. Bytes for other parameters in the same reply are grayed out. Hover over a byte to see the parameter it represents.
  5. Where the parameter is in the response, and how Pelican converts the raw value into a value.
  6. A real reply, decoded. The raw value comes first, then the reading.
  7. Which model years have tested this parameter.

A/C compressor power, actual Q4ETRON_AC_COMPRESSOR_PWR_ACTConfirmed

  • Request22 08 00
  • Service 22DID 0800
  • Module746 → 7B0
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 40 to 55 of the reply, 16 bits.

0x0000 = 0 → 0 W

Formula
val
Range
0 to 65535 W
Unit
W

Confirmed for 2021, 2024. In testing for 2022 to 2023, 2025 to 2026.

A/C refrigerant pressure, sensor 1 Q4ETRON_AC_REFRIG_P_SENS1Confirmed

  • Request22 4E EF
  • Service 22DID 4EEF
  • Module746 → 7B0
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 0 to 15 of the reply, 16 bits.

0x0274 = 628 → (628 × 88 ÷ 10000) = 5.5264 bar

Formula
(val × 88 ÷ 10000)
Range
0 to 576.708 bar
Unit
bar

Confirmed for 2021, 2024. In testing for 2022 to 2023, 2025 to 2026.

A/C refrigerant temperature, sensor 1 Q4ETRON_AC_REFRIG_T_SENS1Confirmed

  • Request22 4E EF
  • Service 22DID 4EEF
  • Module746 → 7B0
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 16 to 31 of the reply, 16 bits.

0x7E9A = 32410 → (32410 × 10 ÷ 100 − 40) = 3,201 °C

Formula
(val × 10 ÷ 100 − 40)
Range
-40 to 6513.5 °C
Unit
°C

Confirmed for 2021, 2024. In testing for 2022 to 2023, 2025 to 2026.

A/C refrigerant temperature, sensor 1 interior Q4ETRON_AC_REFRIG_T_SENS1_INTConfirmed

  • Request22 4E EF
  • Service 22DID 4EEF
  • Module746 → 7B0
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 32 to 47 of the reply, 16 bits.

0x7E9A = 32410 → (32410 × 10 ÷ 100 − 40) = 3,201 °C

Formula
(val × 10 ÷ 100 − 40)
Range
-40 to 6513.5 °C
Unit
°C

Confirmed for 2021, 2024. In testing for 2022 to 2023, 2025 to 2026.

Air pollution level Q4ETRON_AIR_POLUTIONConfirmed

0 means clean air.

  • Request22 26 ED
  • Service 22DID 26ED
  • Module746 → 7B0
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 0 to 7 of the reply, 8 bits. The value is signed.

0x00 = 0 → (0 ÷ 10) = 0

Formula
(val ÷ 10)
Range
-12.7 to 12.7
Unit
Number

Confirmed for 2021, 2024. In testing for 2022 to 2023, 2025 to 2026.

CO2 content interior Q4ETRON_CO2_CONTENT_INTERIORConfirmed

  • Request22 42 DB
  • Service 22DID 42DB
  • Module746 → 7B0
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 8 to 15 of the reply, 8 bits.

0x04 = 4 → (4 × 100) = 400

Formula
(val × 100)
Range
0 to 25500
Unit
Number

Confirmed for 2021, 2024. In testing for 2022 to 2023, 2025 to 2026.

Humidity, inside Q4ETRON_HVAC_INSIDE_HUMConfirmed

  • Request22 27 C4
  • Service 22DID 27C4
  • Module746 → 7B0
  • Every30 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 32 to 39 of the reply, 8 bits.

0x73 = 115 → (115 ÷ 2) = 57.5 %

Formula
(val ÷ 2)
Range
0 to 100 %
Unit
%

Confirmed for 2021, 2024. In testing for 2025 to 2026. Not supported for 2022 to 2023.

Outside humidity Q4ETRON_HVAC_OUTSIDE_HUM

  • Request22 27 C3
  • Service 22DID 27C3
  • Module746 → 7B0
  • Every1 s
  • Testing

Bits 56 to 63 of the reply, 8 bits.

Formula
(val ÷ 2)
Range
0 to 100 %
Unit
%

In testing for 2022 to 2023, 2025 to 2026. Not supported for 2021, 2024.

Radiator fan actual #1 Q4ETRON_HVAC_FAN1_ACT

  • Request22 26 06
  • Service 22DID 2606
  • Module746 → 7B0
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Bits 0 to 15 of the reply, 16 bits.

Formula
(val ÷ 10)
Range
0 to 6553.5 %
Unit
%

In testing for 2022 to 2023, 2025 to 2026. Supported for 2021, 2024.

Radiator fan actual #2 Q4ETRON_HVAC_FAN2_ACT

  • Request22 26 06
  • Service 22DID 2606
  • Module746 → 7B0
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Bits 16 to 31 of the reply, 16 bits.

Formula
(val ÷ 10)
Range
0 to 6553.5 %
Unit
%

In testing for 2022 to 2023, 2025 to 2026. Supported for 2021, 2024.

Recirculation flap stop, fresh air Q4ETRON_RECIRC_FLAP_STOP_FRESHConfirmed

  • Request22 26 20
  • Service 22DID 2620
  • Module746 → 7B0
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 0 to 15 of the reply, 16 bits.

0x00A0 = 160 → 160

Formula
val
Range
0 to 65535
Unit
Number

Confirmed for 2021, 2024. In testing for 2022 to 2023, 2025 to 2026.

Recirculation flap stop, recirculated air Q4ETRON_RECIRC_FLAP_STOP_RECIRCConfirmed

  • Request22 26 21
  • Service 22DID 2621
  • Module746 → 7B0
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 0 to 15 of the reply, 16 bits.

0x035C = 860 → 860

Formula
val
Range
0 to 65535
Unit
Number

Confirmed for 2021, 2024. In testing for 2022 to 2023, 2025 to 2026.

Recirculation flap, actual Q4ETRON_RECIRC_FLAP_ACT_PCTConfirmed

  • Request22 26 1E
  • Service 22DID 261E
  • Module746 → 7B0
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 16 to 23 of the reply, 8 bits.

0x83 = 131 → (131 ÷ 2) = 65.5 %

Formula
(val ÷ 2)
Range
0 to 100 %
Unit
%

Confirmed for 2021, 2024. In testing for 2022 to 2023, 2025 to 2026.

Recirculation flap, actual steps Q4ETRON_RECIRC_FLAP_ACT_STEPSConfirmed

  • Request22 26 1E
  • Service 22DID 261E
  • Module746 → 7B0
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 0 to 15 of the reply, 16 bits.

0x026D = 621 → 621

Formula
val
Range
0 to 65535
Unit
Number

Confirmed for 2021, 2024. In testing for 2022 to 2023, 2025 to 2026.

Recirculation flap, commanded steps Q4ETRON_RECIRC_FLAP_CMD_STEPSConfirmed

  • Request22 26 1F
  • Service 22DID 261F
  • Module746 → 7B0
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 0 to 15 of the reply, 16 bits.

0x026E = 622 → 622

Formula
val
Range
0 to 65535
Unit
Number

Confirmed for 2021, 2024. In testing for 2022 to 2023, 2025 to 2026.

Refrigerant pressure Q4ETRON_REFRIG_PConfirmed

  • Request22 26 05
  • Service 22DID 2605
  • Module746 → 7B0
  • Every1 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 0 to 7 of the reply, 8 bits.

0xFF = 255 → (255 ÷ 5) = 51 bar

Formula
(val ÷ 5)
Range
0 to 51 bar
Unit
bar

Confirmed for 2021, 2024. In testing for 2022 to 2023, 2025 to 2026.

Windshield, temperature Q4ETRON_WNDSHLD_TEMPConfirmed

  • Request22 27 C4
  • Service 22DID 27C4
  • Module746 → 7B0
  • Every30 s
  • Testing for 2022 to 2023, 2025 to 2026

Example reply from a 2024 Audi Q4 e-tron.

Bits 0 to 7 of the reply, 8 bits.

0x7B = 123 → (123 × 0.576 − 38.8) = 32.048 °C

Formula
(val × 0.576 − 38.8)
Range
-38.8 to 108.08 °C
Unit
°C

Confirmed for 2021, 2024. In testing for 2025 to 2026. Not supported for 2022 to 2023.

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