Improved Familiar feat and clockwork familiar

[Watercat]

I'm planning to get a clockwork familiar, and I'm curious of the interaction between its types.

The improved familiar feat says, "if the creature’s type is something other than animal, its type does not change", meaning my clockwork familiar is still technically an animal.

How does this affect its abilities? The clockwork familiar is listed as being immune to the standard construct immunities, but does it retain these since it's technically not a construct? Does it keep the weakness to electricity and the improved initiative and lightning reflex feats since they all depend on its clockwork type?

I think it would be best for it to keep these because otherwise it really isn't that good other than the advice and magic item installation. Most of its abilities seem to rely on the type, and I'm curious if it should only be considered an animal for what types of spells and effects can actually affect it (animal growth, etc).

[Keep Calm and Carrion]

I can't follow your logic on creature type. A clockwork familiar has the construct type. Its type is not animal, and does not change.

[Rhaleroad]

If it is not an animal it stays what it is....so no it does not become an animal. It stays a construct. If the familiar has share spells, it counts as what is needed to share your target "You" spells, but not for other type spells. Clockwork Familiars have 5/Adamantine DC, Construct Traits, Resist 10 Cold and Fire, Vulnerable too Electricity. They have 4 listed feats and as it is a Familiar the GM might be willing to change them up. Can look it up on d20pfsrd pretty easy, listed under Improved Familiars.