Would it be possible for someone with etka (or similar software) to provide me with the correct part number for the air quality sensors on my 2018 superb please. I can see there are multiple revisions and not sure which one is correct.

Vin is TMBDE7NP5J7575222

5Q0907643D, superseded by 5Q0907643E (£88.80 + VAT at Skoda).

1 minute ago, Breezy_Pete said:

5Q0907643D, superseded by 5Q0907643E (£88.80 + VAT at Skoda).

Awesome, thankyou as always @Breezy_Pete

You could get a one from Autodoc which is more than 1/2 the SUK price.

Incidentally, does one get a dash warning to say the sensor has failed? If no, how does one know it’s failed?

Just now, numskull said:

You could get a one from Autodoc which is more than 1/2 the SUK price.

Just now, numskull said:

You could get a one from Autodoc which is more than 1/2 the SUK price.

Yes looking at different options as £88+vat seems quite a lot. Just wanted to be sure if part number so I can cross reference:)

Just now, numskull said:

Incidentally, does one get a dash warning to say the sensor has failed? If no, how does one know it’s failed?

No, you'd probably never know if you didn't scan for fault codes.

Just now, numskull said:

Incidentally, does one get a dash warning to say the sensor has failed? If no, how does one know it’s failed?

No dash warning, however an error when scanning with VCDS and the automatic recirc no longer functions correctly.

Fault Found:

263425 - Air Quality Sensor

B10AF 04 [008] - Internal System Fault

Intermittent - Confirmed - Tested Since Memory Clear

Freeze Frame:

Fault Status: 00000001

Fault Priority: 3

Fault Frequency: 26

Reset counter: 35

Mileage: 78332 km

Date: 2025.07.16

Time: 15:45:19

Outside air temperature: 29.0 °C

Voltage terminal 30: 13.2 V

System run time-Engine running time: 253 s

System run time-Terminal 15 on: 253 s

Air quality status: Clean air

System run time-Engine running time: 253 s

System run time-Te

rminal 15 on: 253 s

Edited 9 November, 20259 Nov by s88urd

Ta. I’ll check mine in that case. Good excuse anyway as I’ve just finished whizzing up my VCDS laptop, a Dell E6410 with a 1tb SSD, upgraded to 8gb RAM and a fresh install of genuine Win 10 Pro. Total cost was £68. Absolutely flies now. Used to take 4 mins to boot, now it’s 35 seconds. VCDS takes about 10 secs to load.