I'm not exactly sure on how this should be structured. I have a question, or, question that reflects first question.
Does the media change the way we think? or Does it have no effect on us?
Firstly, it should be noted that your additional question is completely useless in this case, because all it does is provide an answer to the first question under the condition that this returns false.
Therefore, it's enough to say:
And it already does the job perfectly and contains no obsolete parts.
But, to answer your question as it was asked, this is how your question looks properly:
Or, probably better:
A sentence ending with a comma does not sound like a question to me.
Use two complete sentences if you can:
Or use a sentence like the following if you really want to indicate that the second question reflects the first one: