Hi Chillout,
Something to pick your brain about since you mentioned updated engine firmware and gateway. I have the AID in my 2015 TDI S, along with MIB II nav retrofit.
No reported coding faults for my AID or gateway (I do have a module incorrectly coded fault in 5F although everything works). My issue is that I often get a check engine light for the glow plug indicator. When I turn the key from Off > On I see the glow plug indicator, just as before retrofitting the AID.
Now for the strange bit... If I go from off to on slowly, which appears to give the car more time to show the indicator, the check engine light will clear itself after a few drives. I normally verify the code is no longer active or pending with a scan. But if someone else drives the car or if I get in and "quickly" go to on the check engine light comes back.
It seems to me that the engine module is not recognizing that the glow plug indicator is actually working. But since I'm able to eventually clear the light I feel like this is a software problem more than anything else. Do you think updating my engine software could fix this? Or something with the gateway?
My car came with mid gateway but I have a high that I could install and have coded. I also have a high line BCM that I need to install at some point so that I can get my retrofitted heated seats working but I don't imagine the BCM has anything to do with my CEL problems.
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