Rattle.... why won't it go?

rIcK

rIcK

rIcK

Associate
Joined
5 Jan 2004
Posts
1,732
I've got a BMW 420D gran coupe model year 2019. There is a constant rattling that seems to come from the drivers drive window.

I've had it in a couple of garages and just told them to take the door apart and just replace all the seals etc for the window. But they keep refusing till they can hear it...

Anyone have any thoughts since it's driving me wild.
 
Something is obviously loose, or someone left something behind in your door.

The window itself wouldn't be the most likely to rattle; it is more probable for it to be the window motor or mechanism. It's a door card off jobbie to diagnose this type of issue. They are pretty eay to remove if you have the right torx bits.
 
With these things it's easier just to take it apart yourself than asking a garage to do it. Most of the time they don't fix it.

Probably a wire tapping against something or part of the window mechanism loose.
 
Last edited:
Get yourself some trim removal tools and some replacement door card clips and have a look yourself - could be something obvious and easy
 
yes dismantle it -
youv'e cleaned and lubed the seals in case the rattling is from glass in frame -
is the rattle still there with window lowered , or does the different position of the mechanicals inside the door change it ?
in frozen weather I'd had some clips break and the stuck glass partially detach from the rail it sits on so needed some new window slider clips
 
rIcK said:
I've got a BMW 420D gran coupe model year 2019. There is a constant rattling that seems to come from the drivers drive window.

I've had it in a couple of garages and just told them to take the door apart and just replace all the seals etc for the window. But they keep refusing till they can hear it...

Anyone have any thoughts since it's driving me wild.
Click to expand...

It’s the door lock pin thing. It’s a known source of rattles on the F3x products.
 
This is why I always watch YouTube videos so I can see how the tabs work. Pull this way, slide this way, wiggle it like this. Everytime I do any work on my car like this, something snaps or bends in a way it shouldn't.

My car would look like a Nascar shell if I'd have at it without a video!
 
but he would have known/confirmed the door pin made the noise ... after grabbing it.

Any BMW that doesn't rattle isn't a real BMW
Click to expand...
I thought it's the converse real BMW's (ie pre 2000) don't rattle, possibly the same as mercs ?
 
You must log in or register to reply here.
Back
Top Bottom