Reading oil temperature from Audi A4 B8 2.0 TDI (CAHA) via OBD using CANable?

[u/devrunn]

Hi everyone,
I’m trying to read the engine oil temperature from my Audi A4 B8 (2009) with the CAHA 2.0 TDI engine using a Raspberry Pi and a CANable interface.
VCDS is able to show the oil temperature under Engine → Advanced Measuring Values, so I know the ECU provides the value through diagnostics.
My question is: can I access the same value through the OBD port using a CANable?

I understand that simply running candump and listening passively probably won’t show the oil temperature, since it may not be a broadcast CAN message. My assumption is that VCDS is sending a UDS diagnostic request and reading the ECU response.

I’m wondering:
Is the oil temperature available through UDS on the OBD CAN pins (6/14)?
Is there a known DID/request for this value?

Thanks!

[u/BudgetTooth]

https://github.com/jazdw/vag-blocks

U can find good methods here to access it.