NEW window regulator not raising window?

[lavish bronze]

Hi

I got a BMW E88 123d Pre-Facelift, N47 Engine if it matters.

My old window regulator on passenger side suddenly died, the rope had burst. Got a mechanic, who I will never hire again, to change it. He installed the new one, but the window now produces a scraping type noise and only raises the window approx 2 inches/5cm before it completely stops.

Kinda clueless what to do at this point, since mechanic fucked off bc I refused to pay him for a job not finished.

Thanks.

EDIT: He manually moved the height of the clamps to insert the window before testing. Are the distances/relative heights of both sides super important to assure proper function? To me logically it'd seem it could misalign and create more tension on the rope that way. If so, how fix? lol

[light robin]

Are you able to detach the window from the clamps to ensure it can raise and lower correctly?

[lavish bronze]

The motor itself does work but I haven’t tried that tbf. Don’t got someone who could help me currently but I’ll give a heads up once I try it

[light robin]

Cool. I’m kinda guessing a bit here as I’ve never worked on an e88, just trying to reason through what it could be. Something impeding the window is my first guess, and then with the glass all the way up I think you should be able to test the full range of motion of the regulator without the window attached to confirm it has all the travel it needs

[lavish bronze]

I mean I doubt it since it occurred as soon as we tried it and nothing came over the window. The cracking sound made me think it was the plastic next to the motor.

Thought misalignment could be a thing since the „mechanic“ moved it by hand

[proud knoll]

Pull the window up and hold it in place with painters tape. Can be your best friend in times like this lol

[light robin]

Oooh that’s a good trick!

[pseudo oracle]

Or with Coat hangers

[proud knoll]

Nice blue name 🙂

[light robin]

Same!

[spice siren]

These are frameless windows so unfortunately this isn't really possible

@lavish bronze make sure nothing is catching on the window or regulator because I had that happen on my e82 when I replaced the lock actuator

[proud knoll]

Nooooo

[lavish bronze]

Removed the window, same sound getting produced. Removed the motor and it’s rotating effortlessly

And somehow the rope in the new regulator also wrapped itself up badly. How the fuck does that happen on a new part? Funnily enough that was the issue w my previous one

[light robin]

Ah, unfortunately that tracks with the suspicion above about it getting moved by hand. Hopefully there’s at least a warranty on the part?

[lavish bronze]

Im trying but if not it seems the false choice in mechanic screwed me. I’m not sure I’ll try a return

This is the current state of the new part

I doubt they’ll allow me a return if they can prove it was an installation error

[proud knoll]

This was new?

[proud knoll]

I would start with what coffee said. The track could be messed up causing the window to bind

If the window is binding the actuator might still want to continue hence why it balled up on you like it did

[lavish bronze]

I mean the whole part came as one

Without the rotor motor