2001 E53 3.0i No Crank no Start.

[HansBimmers]

I swapped electric starter/ ignition switch without taking the old one out of place physically, hooked in the new one in electrically, kept the key in the ignition and then bam! Nothing but indifference compared to the old switch.
I tried to check starter relays with a generic Bosch relay, but will that work for testing purposes? Not even sure which one it is on my relay panel in the passenger side under the hood box. Mine does not look exactly like pictures I’ve seen. Here is the configuration of my relay box shown.

With regards to checking the big fuse for the starter, what type and size fuse are they do I can get some spares? Do I just unbolt the fuse panel after a battery disconnect and then it’s reachable?

Thanks for all your help, but still needing more!

[upallnight]

Originally Posted by HansBimmers

I swapped electric starter/ ignition switch without taking the old one out of place physically, hooked in the new one in electrically, kept the key in the ignition and then bam! Nothing but indifference compared to the old switch.
I tried to check starter relays with a generic Bosch relay, but will that work for testing purposes? Not even sure which one it is on my relay panel in the passenger side under the hood box. Mine does not look exactly like pictures I’ve seen. Here is the configuration of my relay box shown.

With regards to checking the big fuse for the starter, what type and size fuse are they do I can get some spares? Do I just unbolt the fuse panel after a battery disconnect and then it’s reachable?

Thanks for all your help, but still needing more!

Not sure what you are trying to explain in this quote. Did the engine start? If you kept the old switch on the column and just connect the new switch to the harness, I don't see how putting the key in the ignition will start the engine unless you used a screwdriver to turn the new electrical switch to the start position.