Haveing change an engine in a Zafira today i can tell you.
You wont need pics...
I would remove the top of the air filter houseing with the induction pipe to the throttle body first, top of the airbox is screwed on with 5iirc T20 torx screws, there is a breather also and a hose clamp that secures the induction pipe to the throttle body (you need a 6 or 7mm socket as mine had no cut for a screw driver).
Now you can see the alternater, next remove the aux drive belt, its an auto tensioner, i guess there is a proper too, for it, but i used a medium sized pare of waterpump pliers and lifted the tensioner upwards to release the belt.
There is one multiplug at the bottom/front of the alternator, also a 13mm nut holding the power cable on (disconnect the battery first !).
Then the alternator is simply held to the block the 4x E12 torx bolts, undo these and remove alternator, refit in reverse order.
😉
