Window Drop Down on door opening
Moderators: GRNSHRK, ron, bfons
Window Drop Down on door opening
This might be a totally dumb question, but given that the door glass rides up under a lip on the door seal, are the e24's supposed to have the drop down feature you get on, say, an e86 coupe? I know a lot BMW's have this, but those tend to be the newer variants.
Current cars:
1989 635CSi Manual
2007 Z4M Coupe
G31 530d M Sport
F21 118i M Sport
Based in the U.K. Leicestershire
Previously : F30, E60, E21, E30, E12, E28
1989 635CSi Manual
2007 Z4M Coupe
G31 530d M Sport
F21 118i M Sport
Based in the U.K. Leicestershire
Previously : F30, E60, E21, E30, E12, E28
Re: Window Drop Down on door opening
Not on the E24.
They are ALWAYS rustier than you thought!!!!!!
'85 M #228
'87 M #367
'88 High line.
'10 X5
‘84 Alfasud 1.5 ti
'85 M #228
'87 M #367
'88 High line.
'10 X5
‘84 Alfasud 1.5 ti
Re: Window Drop Down on door opening
Thanks Ron, one less thing to worry about I suppose
Current cars:
1989 635CSi Manual
2007 Z4M Coupe
G31 530d M Sport
F21 118i M Sport
Based in the U.K. Leicestershire
Previously : F30, E60, E21, E30, E12, E28
1989 635CSi Manual
2007 Z4M Coupe
G31 530d M Sport
F21 118i M Sport
Based in the U.K. Leicestershire
Previously : F30, E60, E21, E30, E12, E28
- panthercity
- Posts: 89
- Joined: Tue Jul 12, 2016 2:52 am
- Location: Fort Worth, Texas
Re: Window Drop Down on door opening
Any insight into how difficult it would be to add this feature to an E24?
Re: Window Drop Down on door opening
I suspect use the heated door lock switch to engage a pcb circuit or short time relay (circa 0.25 secs) to drop the window a fraction and then use a contact on the the interior light relay going off to engage a similar pcb/short term hold relay to push the window back up for just over that length of time, say about 0.5 secs.
2001 Alpina B10 V8 Touring (1 of 12 rhd)
1997 Alpina B12 5.7 L (1 of 2 rhd)
1995 Alpina B10 4.6 Touring (1 of 1 rhd)
1985 BMW M635CSi (1 of 524 rhd)
1982 BMW 635CSiA (1 of 100's left from the 1000's made and still valiantly fighting against a rusty grave)
1997 Alpina B12 5.7 L (1 of 2 rhd)
1995 Alpina B10 4.6 Touring (1 of 1 rhd)
1985 BMW M635CSi (1 of 524 rhd)
1982 BMW 635CSiA (1 of 100's left from the 1000's made and still valiantly fighting against a rusty grave)
- panthercity
- Posts: 89
- Joined: Tue Jul 12, 2016 2:52 am
- Location: Fort Worth, Texas
Re: Window Drop Down on door opening
Does this feature typically have any protection against pinching a persons fingers?
- hornhospital
- Platinum Member
- Posts: 2940
- Joined: Sun Jul 11, 2010 6:46 pm
- Location: Silverhill, AL
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Re: Window Drop Down on door opening
The system on the E36 coupe and cabrio (and presumably the sedan, but they don't have the window drop/raise feature) have a pinch protection circuit, but I don't know how it works. I assume it's tied to the amperage draw on the window motor.
Ken Kanne
'84 633CSi "Sylvia"; '85 635CSi "Katja";'85 325e "Hazel Ann"; '95 M3 "Ashlyn"
'84 633CSi "Sylvia"; '85 635CSi "Katja";'85 325e "Hazel Ann"; '95 M3 "Ashlyn"