Not the first falcon seatbelt to give me or any of us trouble.
I've known for a while that the hold up is caused by the B pillar U turn.
Even after multiple cleans, the belt still won't retract the last 12".
The retractor unit itself works 100% fine, works as it should, until the pillar cover is refitted & pinches the belt at the U turn.

So what's the penultimate solution here ?
Replace the Uturn fitting ?
With what ?
A roller of some type?

Back story, after 10 years in an AUII I've just got a BA MII so working through the initial little dramas that come with a new car.

i had similar problems like you. i was told before i went for the rwc to use silcone spray on the belt. i was very liberal with it


it's now not really retracting at all



so either reclean or replace

Replace what, as stated, everything works as it should, but the U turn fitting in the pillar causes too much friction.
Trust me the belt is clean, I pulled it out & soaked it in metho, several times, & scrubbed it repeatedly.

I'm gonna call this a win!

First I cut away some excess plastic from the buckle to make it lighter. The part on the belt, cut away the back edge where the part no' is.

Then I pulled the torqx bolt out to better access the U turn fitting in the B pillar.
The slit where the belt goes through, I ground down the top outer edge which protruded outward, then slid some 120 grit sandpaper between the belt & the fitting, sanded vigorously until the top edge was tapered upwards & the gap was slightly increased.

So now when the belt retracts, if its angle changes as it slides through the pillar then it doesn't grab that top edge. The gap for the belt to slide through is so narrow that the slightest change of angle as the belt retracts, it stops the belt.... not anymore but!!
Then I rubbed some talcum powder into the belt & it retracts fine all the way.

will look at what you have done & see. sounds good tho.


Cheers

Go for it, sounds like you couldn't make it any worse LOL.

I'd suggest pulling your belt all the way out & soak it in acetone or a really strong grease cutting agent.

The other main reason the belts jamb up is grease & oils from our hands embedded into the belt, as I mentioned before usually the last 12" to 15" as it retracts.
Scrubbed mine with metho about 4 times, then pulled the belt all out & literally poured acetone on it & scrubbed again just with a clean acetone soaked rag.

Obviously, keep well clear of flame & ignition sources whilst doing this.