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How to Replace Front Window Regulator 01-05 BMW 325Xi

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  1. step : Removing the Door Panel (0:24)
    • Pry up the mirror switch with a trim tool
    • Disconnect the wiring harness
    • Pry out the wood grain trim with a trim tool
    • Pry out the trim covers underneath the arm rest with a trim tool
    • Remove the five T20 Torx screws from the door panel
    • Pry out around the door panel with a trim tool
    • Lift the door panel up and off
    • Unclip and disconnect the wiring harnesses
  2. step : Removing the Window Regulator (3:16)
    • Remove the trunk flooring trim over the battery
    • Disconnect the negative terminal with a 10mm wrench
    • Remove the 10mm bolts from the air bag
    • Disconnect the air bag
    • Disconnect the window motor lead
    • Remove the T20 Torx bolts from the module
    • Carefully peel off the vapor barrier with a razor blade
    • Loosen the two 10mm bolts that hold the window to the regulator
    • Raise the window by hand
    • Hold the window in place with painter's tape
    • Remove the five 10mm bolts from the regulator
    • Remove the two 10mm bolts from the window track
    • Remove the wire tie from the window regulator
    • Pull the window regulator out through the door
  3. step : Removing the Window Regulator Motor (8:34)
    • Remove the T30 Torx screws from the regulator motor
  4. step : Installing the Window Regulator Motor (9:31)
    • Tighten the T30 Torx screws to the regulator motor
  5. step : Installing the Window Regulator (10:10)
    • Insert one of the bolts into the window regulator
    • Push the regulator into the door
    • Hang the regulator by its bolt
    • Insert the four 10mm bolts into the regulator
    • Insert the two 10mm bolts into the window track
    • Remove the painter's tape from the window
    • Lower the window onto the regulator
    • Insert the two 10mm bolts that hold the window to the regulator
    • Connect the window motor
    • Tighten the T20 bolts to the module
    • Connect the air bag wiring harness
    • Tighten the 10mm bolts to the air bag
    • Tighten the negative battery terminal with a 10mm wrench
    • Replace the trunk trim flooring over the battery
  6. step : Installing the Door Panel (15:27)
    • Clip on and connect the wiring harnesses to the door panel
    • Lift the door panel up into place
    • Tap in the door panel clips
    • Tighten the five T20 Torx screws to the door panel
    • Press on the trim clips underneath the arm rest
    • Press on the wood grain trim
    • Connect the switch wiring harness
    • Press the mirror switch into the door panel

What's up guys. I'm Andy from 1AAuto. In this video, I'm going to show you how to replace a front window regulator on this 2001 BMW 325 XI. If you need this part or other parts for your vehicle, click the link in the description and head over to

To pull this switch out, you want to use something really thin. You can use a trim tool or a really small pocket screwdriver. Get in here, just be careful you don't want to ruin the door panel. Try to put your plastic trim tool behind it. Try to prevent from damaging the panel. Get underneath here. Get under there and it'll slide right up. Disconnect the connector. Grab it and slide it up.

Take a trim tool. We want to take this trim off right here. Just slide it behind here. Gently pry behind here, being careful. Pop this out, some clips. Hold it on. This one popped, but we can pop that back in. And with my trim tool, just get underneath here. Take these little covers off. Pop those off.

Now I can take these screws out. There's five of them. I'm going to use a T20 extension and a ratchet. Can use a little magnet to get the screws out. Now I'm going to get a trim tool and just pry behind the door panel. Just going to pry it out. You want to make sure you pry it out this way. And slide it off the lock rod. Beware those clips. That's why you want to slide it straight out.

And we can disconnect the handle right here. Just pry it up like that and slide it out. That's actually really easy. Take these wires off. You can use a trim tool. Get behind here, pop these off. Disconnect those speakers. Just use a small blade screwdriver. And there's no lock on that. But there is on this one. You just squeeze it just like that.

Now I'm going to put the window up. I have to turn the key on. Roll the window up. The switch is in the center console. Put that up all the way. Disconnect the key. I'm actually going to disconnect the battery because I don't want to disconnect the airbag without the battery disconnected.

In the trunk, you're going to have a cover over here. Take that cover off and loosen up this 10 millimeter nut. Loosen up the battery terminal and disconnect it and slide it out of the way, so it's not going to arc out on the battery. Now after waiting a minute after disconnecting the battery. Then I can take these bolts out. I'm going to use a 10 millimeter socket extension and a ratchet. Take that last bolt out. We can slide the airbag module out. Disconnect the wire, slide it out of here. To disconnect the airbag right here, use a straight blade tool. Just get under here, this little lock. Loosen up that lock and then just gently pry this out and disconnect it.

Now when you put this aside, you always want to put this down so that the explosive bag side is going up. You never want to put it down like that. Otherwise, if it does go off, it'll go flying. I'm going to remove this module, get it out of the way. I'm just going to use a T20 extension and a ratchet. Take these two screws out. Slide that out of the way.

Now I want to pull this vapor barrier. You can use some kind of a pry tool to try to peel this away or a razor blade. Just use a razor blade, trying not to cut any wires or any more of the vapor barrier. This will stick to itself. So now I have to lower the window down. I'm going to have to reconnect the battery so that I can lower the window down, so I can disconnect the window from the window regulator. When I do that, I'm probably going to get an airbag light on because I have the airbag disconnected. So I may have to go and clear the airbag code out after doing this repair.

So we want to lower the window down to where you can access the bolt. There's a bolt right there and then one right there at the base of the window. We'll use a eight millimeter socket extension and a ratchet to remove those bolts. And I'm going to have a friend help me and hold the window so that it does not fall. Pull that out and that fell. I'm just going to use a magnet, grab that bolt. Slide that out. Pull this one out. And actually there's a nut that's on the back side that fell out. So make sure you grab those. Pull that out. Make sure you'll be able to slide the window up. So that it's out of the way. Just slide it up and I'm going to tape it up.

So I'll just use about three pieces of tape to hold it. That'll just keep it safe while we're doing the repair. It should be good. Now we can disconnect this connector. Push down on the lock, pull it out. There's five nuts I need to take out. There's one there, one there, one there, and then these two over here. Take those out. Use a 10 millimeter socket extension and a ratchet.

Slide this regulator out. There is a wire tie attaching the regulator right here. So if your vehicle has that, just cut that off. Just slide this down. Part can come out. And it's still attached right here. So I'll just squeeze that. Take the regulator and motor out.

Now I can take these screws out to take the motor off. I'm going to use a T30 socket and a ratchet. With those screws out, just twist the motor sideways and slide it up. Just like that. Here's the old window regulator. Here's the new window regulator from As you can see the shape is the same, has the same mounting studs in the same locations. The assembly where the motor is installed is in the same spot. Has the springs, get yours at and you can do it yourself.

Take the motor assembly, slide it up. You just want to push these together. Squeeze them with your hand and then you twist it. Make sure those go underneath those little brackets right there. Get that in position. Take the screws, get all the screws started and we can snug them up. Just take the T30 socket and a ratchet, snug them up. It is screwing into plastic, so don't tighten it too tight, just snug. That's good.

Now we will slide this in position. Slide this side in first. Then this back side. Line the studs up. Make sure you're on this side of the glass closer to you. That looks good. Then with this back one, line that stud up with that. Make sure you're in this hole, not that hole right there. Get the nut started. Get these other ones started. I'll go back with a 10 millimeter socket extension and ratchet and just snug these all up.

We can transfer this piece over from the old one. Slide this in position right here. It's going to go through that hole and then I'm just going to put a wire tie on this one up here. Reconnect the connector. Lock it in place. With the key on, carefully you want to position these so you can access where the bolts will go. We can just move those up slightly.

So I actually did not need to take these bolts out when I was unbolting the window. You could just loosen them up. Just because the window regulator itself is slotted. So that would be a little bit easier. Just loosen these bolts up, don't take them out completely. So I am going to take this tape off. With my hand supporting the window underneath or you can have a friend hold the window for you. Pull that down. Slide the window down. Get this in position. Get that in position. Then I'll install these bolts. With the window in position, just take the bolt, eight millimeter socket extension and a ratchet, slide this in.

That back one is started. What I used to hold the bolt in was actually a little bit of this adhesive that holds the vapor barrier on. Just grabbed a little piece of it, stuck it in the socket. Then I can hold the bolt in, just like that. Now I'll do the same on the other side. This one I have to slide the nut through and slide the bolt in position.

Now with those lined up in position, then I can use a torque wrench and I'm going to torque that to eight Newton meters, those two window bolts. Now we're just going to reinstall the vapor barrier. Make sure these cables come through where they need to go and the wiring harness. Get this lined up. A lot of times you can find like where the hole was for something. So that will line up there with the bolt holes. And then get that resecured, just like that.

Take this module right here with this bracket. We'll put the screws back in here. We're going to use a T20 extension and a ratchet. And snug it down. Let's reconnect this airbag. Take the connector, slide it in position, just like that. It'll lock in place. Then push the little lock tab down. We'll slide that in position right there. Take the 10 millimeter, these bolts. Get these started. Take a 10 millimeter socket extension and a ratchet, tighten them down.

Make sure those are all tight. Now we want to reconnect the speaker wiring harness. Connect the big speaker. We'll connect the tweeter right there. This wiring harness is going to slide through here, just like that. And then push this retainer right here. Make sure this wire comes through here, just like that. And then when we connect up this rod, this latch cable. We want to make sure that this inside latch is in the closed position like that. And then slide this in here. Latch it in place. Double check to make sure it's working properly, which it is. It'll slide onto the lock rod. Get everything lined up and just push it back on.

Then we can reinstall the screws. Remember the long screw goes right here. And then the short ones go in the other places. So shorter screw goes right here. Using a T20 socket and a ratchet and extension. Smaller one goes right there and then also under here, under the armrest. All right, those are all tight. These little covers go on the bottom one. Just line those up. Push them in. This cover goes on the top. Just pop this piece off here. Take a straight blade screwdriver, pop this off. That can go right there. Take this piece, line it up. With it lined up, there is two little tabs on the front of this. So get those in first. Take the mirror switch. Let's connect the connector. It only goes on one way and slide it in position. Push it straight down.

Thanks for watching. Visit for quality auto parts shipped to your door. The place for DIY auto repair. And if you enjoyed this video, please click the subscribe button.

Tools needed for replacement:

    General Tools

  • Razor Blade / Gasket Scraper
  • Magnet - Extendable

  • Materials, Fluids, and Supplies

  • Painter's Tape

  • Ratchets & Related

  • Socket Extensions
  • Torque Wrench
  • Ratchet

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - Metric

  • 8mm Socket
  • 10mm Socket

  • Specialty Tools

  • Trim Tool Set

  • Star Drivers & Sockets

  • T30 Driver
  • T20 Driver

  • Wrenches - Metric

  • 10mm Wrench

2001 - 2005  BMW  330Xi
2001 - 2005  BMW  325Xi
2001 - 2005  BMW  330i
1999 - 2000  BMW  328i
2001 - 2005  BMW  325i
1999 - 2000  BMW  323i

99-05 BMW 3 Series Power Window Regulator w/o Motor LF

BMW 323i 325i 325Xi 328i 330i 330Xi Front Driver Side Power Window Regulator TRQ

This part replaces:

  • Hollander 125-58822L
  • Dorman 740-484
  • OE # 51 33 7 020 659
  • TRQ WRA51464

Part Details

  • Operation: Power
  • Regulator Option: without Motor
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