BMW 3-Series (E90 E92) Forum - View Single Post - E90 BMW Soft close doors retrofit DIY-E9X Chassis.

Serf27 · 01-21-2022, 02:47 AM

Reserved for passenger door:

Right front door is done and working great.

List of parts needed.

-Right front actuator- 51217185692
-Electrical tape. (I used tesa tape this time)
-Soft close motor oem pigtail or pigtail parts listed in post #1 above.

Before we start, remove your door panel and door actuator.
https://www.pelicanparts.com/BMW/tec...eplacement.htm
https://www.pelicanparts.com/BMW/tec...eplacement.htm

You need to move the window track closest to the actuator. I recommend that you remove the glass window too. It is easy to remove and easy to re install and will get in the way a bit if left in place.
Follow this guide on how to remove the glass and stop when you have the window out. Remove the 2 10mm nuts on the track closest to the actuator. Move that track to the center of the door. https://www.pelicanparts.com/BMW/tec...eplacement.htm

Step1.) Photo 1&2
Transfer the door handle bracket and cable from your old actuator to the soft close actuator.
Follow this guide on how to remove the door handle.
https://www.pelicanparts.com/BMW/tec...eplacement.htm
Once the Handel is off, remove both rubber gaskets on the door. Behind one gasket, is a small torx screw. Loosen the screw, DO NOT remove it, just loosen it and the bracket slides out of the door inwards.

Step 2.) Photo 3
Locate the wires where we will be pulling power/ground. All the harness wires but 3 are thin. The 3 thicker wires go to the mirror.
A red wire with with gray stripe will be the power wire.
A solid brown wire will be the ground wire.
Splice the 2 wires from your soft close motor to those 2 wires.
I spliced right at the junction where the wires start to come out of the door frame.
I am also using an OEM pigtail, shown in the photos.

NOTE! Plug your door actuator and soft close motor connectors in and verify every works before assembly of the actuator onto the door.

Step 3.) Photo 4&5
It’s time to mount the motor.
There isn’t a lot of space to drill a hole and mount the motor as it is in other BMWs. I held the motor against the door frame and put the window track against the motor. When the 2 nuts are holding the window track, the motor is pinched between the track and door frame and stays put.

NOTE! Make sure your soft close motor is plugged in and the wires are properly routed before tightening the window track nuts. It is difficult to reach and connect it once it’s in place.

NOTE! Once the motor is pinched between the track and door, re install your glass window. Verify that the window rolls up and down and does not bind or refuse to go up or down.
IF the window doesn’t want to move up or down, loosen the track nuts and reposition the motor until the window rolls freely. Copy the orientation of my motor position and you should be fine.

Step4.) Photo 6&7
Secure your soft close motor wires.
The yellow line shows where I routed the wires along the door.
The yellow circle shows where my splices were made.
+Tesa tape for an OEM look.

Now get out, tap your door closed and look at it work!

At this point you can assemble what extra parts are left.

Video of it working.
https://youtube.com/shorts/0JXnfi-Zw9A?feature=share

01-21-2022, 02:47 AM	#2
Serf27 Brigadier General 2851 Rep 4,322 Posts Drives: 335i Join Date: Apr 2018 Location: Sitting in a BMW. iTrader: (-1)	Reserved for passenger door: Right front door is done and working great. List of parts needed. -Right front actuator- 51217185692 -Electrical tape. (I used tesa tape this time) -Soft close motor oem pigtail or pigtail parts listed in post #1 above. Before we start, remove your door panel and door actuator. https://www.pelicanparts.com/BMW/tec...eplacement.htm https://www.pelicanparts.com/BMW/tec...eplacement.htm You need to move the window track closest to the actuator. I recommend that you remove the glass window too. It is easy to remove and easy to re install and will get in the way a bit if left in place. Follow this guide on how to remove the glass and stop when you have the window out. Remove the 2 10mm nuts on the track closest to the actuator. Move that track to the center of the door. https://www.pelicanparts.com/BMW/tec...eplacement.htm Step1.) Photo 1&2 Transfer the door handle bracket and cable from your old actuator to the soft close actuator. Follow this guide on how to remove the door handle. https://www.pelicanparts.com/BMW/tec...eplacement.htm Once the Handel is off, remove both rubber gaskets on the door. Behind one gasket, is a small torx screw. Loosen the screw, DO NOT remove it, just loosen it and the bracket slides out of the door inwards. Step 2.) Photo 3 Locate the wires where we will be pulling power/ground. All the harness wires but 3 are thin. The 3 thicker wires go to the mirror. A red wire with with gray stripe will be the power wire. A solid brown wire will be the ground wire. Splice the 2 wires from your soft close motor to those 2 wires. I spliced right at the junction where the wires start to come out of the door frame. I am also using an OEM pigtail, shown in the photos. NOTE! Plug your door actuator and soft close motor connectors in and verify every works before assembly of the actuator onto the door. Step 3.) Photo 4&5 It’s time to mount the motor. There isn’t a lot of space to drill a hole and mount the motor as it is in other BMWs. I held the motor against the door frame and put the window track against the motor. When the 2 nuts are holding the window track, the motor is pinched between the track and door frame and stays put. NOTE! Make sure your soft close motor is plugged in and the wires are properly routed before tightening the window track nuts. It is difficult to reach and connect it once it’s in place. NOTE! Once the motor is pinched between the track and door, re install your glass window. Verify that the window rolls up and down and does not bind or refuse to go up or down. IF the window doesn’t want to move up or down, loosen the track nuts and reposition the motor until the window rolls freely. Copy the orientation of my motor position and you should be fine. Step4.) Photo 6&7 Secure your soft close motor wires. The yellow line shows where I routed the wires along the door. The yellow circle shows where my splices were made. +Tesa tape for an OEM look. Now get out, tap your door closed and look at it work! At this point you can assemble what extra parts are left. Video of it working. https://youtube.com/shorts/0JXnfi-Zw9A?feature=share Attached Images __________________ E90 335i-408WHP. Alpine over Terra brown E70 X5 35i M Sport-Stage1 Tune. Alpine over Black E91 328 M Sport-Alpine over Black-Alpine over Saddle brown. E93 335i-DINAN tuned. Alpine over Saddle brown Last edited by Serf27; 04-23-2023 at 12:31 PM..
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