Awasome Vw Tdi Check Engine Light Codes References. That lamp is the malfunction indicator (mil aka check engine) is not what you would expect to see from lack of dpf regenerations. Web updated on oct 26, 2023.

That's why the computer was throwing all sorts of confusing codes, making the troubleshooting that much more difficult. Find the negative battery terminal. This is just one way to diagnose a vw check.