Hi!

It might be a bit weird question, but how do i disconnect the small multiplug from an alternator? Its the one with three wires. The alternator is still attached to the engine and I can reach in and feel the plug with my hand, but cant really see it very well. Is there some kind of plastic tab holding it down or is it simply pull-away plug? Ive tried to wiggle it a bit, but it just wont move.
I have a diesel X-Type, but the alternator should be the same as every other x-type has.

 

Small tab on one end, internal.