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Z Series (Z3, Z4, Z8)General discussion and technical help for all year Z series cars.
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Your Ride: 2004 Z4 2.2i SE
Z4 Window Cable Snapped
Heard a very loud snap from within the door cavity this morning about half way through the "one-shot" descent cycle of the driver's door window. All glass remained fully intact and I was able to manually pull the glass back-up to the shut position, so at least I could get back home without freezing to death!!
Have removed door panel, door airbag and inner polystyrene membrane (the one attached with the butyl bead) and can now see that the wire cable has snapped. Have now run out of light for the evening, but will resume in the morning. Has anyone come across this before and, if so, what is the best way to progress from here?
Your Ride: 92 525, 88 325 hardtop'ed vert and 83 320iS
IMPORTANT!!!!
There is a tightening torque for the bolt that connects window to regulator, if over tightened you window WILL shatter, its been done many times before.
Also if you turn your key on with the air bag disconnected you will need to clear the airbag light.
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1992 525i, 1988 Hardtop'ed Vert and 1983 320iS
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Your Ride: 2004 Z4 2.2i SE
Thanks Antiburn - knew about the error message which would need to be cleared if I power-on without the airbag connected alright. Thanks for the reminder though...
On the bolt torque for the window to regulator, makes perfect sense now that you say it. Appreciate the heads-up. Do you know what the max recommended torque is (or where I could find out?). Failing that, I'll just have to do it by "feel" (not ideal, I know)....surely around 5Nm should be ok...
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Your Ride: 2004 Z4 2.2i SE
Andy - I came across a really detailed instruction on this site somewhere (it even had photos & a step by step process) - see if you can dig it out. If you can't though, it's fairly straightforward. Remove all of the fixings on the door panel (there are a few hidden ones - in behind the inside door pull handle and also behind the plastic "Airbag" sign). Once you have the door panel removed and can see the door airbag box (and before you touch it at all), you have to turn-off the vehicle completely, disconnect the battery in the boot, leave the car for 30 mins (this is sufficient time for any stored charge in the airbag to discharge to protect it from inadvertently deploying). Then, and only then, should you approach the airbag. First of all, disconnect the cable - you have to slide back the little clip on it before it will unplug. Then you can carefully unscrew the fixings and remove the airbag (please store it somewhere safe, away from anyone and ensuring nothing is stored on top of it in the very unlikely event it would deploy - always hold it away from you when moving it). DO NOT reconnect the battery at any time whilst the airbag is disconnected as if you do, it will register an Airbag error code with the vehicle ECU and you will need to travel to a dealer to get it reset (with the associated costs).
12-29-2007, 01:50 PM
Z4 Window Cable Snapped
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