I bought a used German-spec 1994 525i, and it turns out it wasn't in as good shape as I was led to believe. I've done some work to it and it runs good now, but I noticed that the "check engine" lamp never comes on - not even when first starting it up, as with most of my previous vehicles.
Based on the work I've had to do so far, it wouldn't surprise me if the previous German owner disconnected the check engine lamp. So I have two questions:
1. SHOULD the check engine lamp come on when the car is first started up?
2. If not, what is the easiest way to verify that the lamp works like it's supposed to? I'm hoping there is something in the engine compartment that I can disconnect (without damaging anything, of course) that should turn the light on. If the light comes on, I'm good. If it doesn't come on, troubleshooting time.