So the CEL light won't come on even after I replaced the bulb. I swapped bulbs with a light that was working and still nothing. Any ideas? I heard Mercedes has a way to electronically turn it on with their tools. Any truth to that?
It should come on when you first turn the key on, then go out after the engine starts. I don't know for sure if it's possible to turn on via STAR but it wouldn't surprise me.
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