Soft Closing Doors (MARK 1)
This is the installation guide for BMW iX3 Soft Closing Doors (MARK 1) from EVOffer.
User Instruction
Soft-Close: After parking, gently close the car door. When the door lock reaches the first level, the soft-close door motor will activate, quietly drawing in and locking the door. The door lock components will automatically return to their original position.
Manual Closing: When manually closing the door lock, the soft-close function will also operate to ensure the door is fully closed.
Packing List
Soft close door lock unit x 4
Latch motor x 4
Wire harness x 4
Cable Ties
Recommended Tools
Diagonal cutting pliers
Hex sockets
T screwdrivers
Flat head screwdriver
Cross head screwdriver
Pry tools
Electrical tape
Precaution
Before installation, to ensure operational safety, disassembling the negative battery terminal may prevent the windows from moving. However, high-end vehicles may require electrical activation after battery disassembly and previous settings may be lost, so do not remove the battery. Please first verify that all parts are complete and wrap any easily damaged or scratched parts in bubble wrap.
For safety and to ensure the product works correctly, have it installed by professional staff. Do not disassemble the device yourself to avoid unnecessary damage.
Check whether the buttons on the door, window movement, original door lock opening, closing, and locking functions are normal.
Before installation, staff should remove all metal or other hard objects from their person and place them outside the vehicle to prevent damage to the car seats, interior, and doors during operation.
Many parts are disassembled during the installation process, so carefully store the removed parts to ensure that subsequent restoration work can proceed smoothly.
Follow the installation process for wiring to avoid affecting the vehicle's moving parts. All wire harnesses need to be secured after the wiring is done to prevent loosening and vibrational noise.
Do not unplug any connectors while the power is on after connection to avoid damaging the main unit or the vehicle's fuses, causing other damage or abnormalities.
Before and after disassembling all parts, please confirm whether the adhesive nails and buckles are intact. If damaged, they must be replaced to avoid abnormal noise while driving.
Be careful with screws in tight operating spaces. If a screw falls inside the vehicle, make sure to retrieve it, or the vehicle may make abnormal noise when moving.
Installation
Step 1 - Front Doors Disassembly
① Remove the door handle trim cover, ② then remove the rear-view mirror inner trim cover.
Remove the two screws that secure the door handle.
Using a pry tool, unclip the retaining clips along the bottom edge of the interior door, and remove the interior trim panel.
① Remove the central lock indicator rod; ② Remove the sound insulation material from the middle of the door.
Use a 23mm hole cutter to create a hole in the position indicated by the arrow in the diagram. (Note: the door glass should be in a closed state when drilling)
Remove the screws securing the speaker and remove the speaker.
Plug in the window lift controller and adjust the window lift to an appropriate position. (Note: Adjust until the window lift screw hole reaches the pressable clip position)
① While pushing the glass upward with one hand, use a small screwdriver to press down on the glass fixing clip.
② While pushing the glass upward with one hand, use a small screwdriver to press down on the glass fixing clip.
Push the glass to the closed position and secure both sides with electrical tape.
After loosening the clips on the sound insulation panel, remove the fixing screws and remove the panel.
Step 2 - Front Doors Installation
Remove the original lock fixing screws.
Peel off the decorative cover of the key emergency lock core screw, and use an L-shaped hex screwdriver to loosen the door handle lock core fixing screw. (Note: Do not forcibly unscrew the screw)
Remove the left front door emergency key lock core.
Loosen the 2 screws that secure the main bracket of the door handle. Remove the original lock.
Take out our company's electric suction door lock and motor box, and install the pull rope fixing clip on the lock in the corresponding position. Please refer to the diagram above;
Install the dust cover for the pull rope.
Install the mounting bracket for the motor box and connect the motor box wiring harness to the lock.
After the main bracket of the outer door handle is assembled with the electric suction door lock, install the outer door handle pull rope to the corresponding position on the lock; please refer to the diagram above.
Plug in the door signal wiring harness connector, smooth out the wiring harness, and fix the clips on the wiring harness. Install the lock in the original lock installation position.
Tighten the lock fixing screws.
Install the outer door handle and key lock core, and tighten the lock core fixing screw.
Smooth out and secure the motor box wiring harness, install the mounting pillar of the motor box mounting bracket into the door sheet metal hole, and tighten the 2 fixing screws. (Note: The 2 fixing holes on the door sheet metal are originally used to fix the wiring harness clip, you need to pull out the wiring harness clip, the wiring harness can be smoothed and tied with a small tie)
Step 3 - Front Doors Power Connection
Install the sound insulation panel in place, clamp the yellow wire from the T-type power line with a fuse box in the thick red-blue line +12V of the original car window lift motor wiring harness, and the black wire is clamped on the thick brown -GND ground wire. (Note: The power clamp needs to be clamped in place, use a multimeter to measure whether there is a normal +12V output at the end of the power harness)
Step 4 - Rear Doors Disassembly
Remove the door handle trim cover.
Remove the two screws that secure the door handle.
Use a pry tool along the bottom edge of the interior door to unclip the retaining clips and remove the interior door trim panel.
Unplug the glass lift motor wire harness connector. Using a 23mm hole cutter, drill a hole in the middle of the elliptical position to the right of the motor. (Note: the door glass should be in a closed state when drilling)
Plug in the window lift controller and adjust the window lift to an appropriate position. (Note: Adjust until the window lift screw hole reaches the pressable clip position)
Push the glass upward with one hand while using a small screwdriver to press down on the glass fixing clip.
Push the glass to the closed position and secure both sides with electrical tape.
After loosening the clips on the sound insulation panel, remove the fixing screws and remove the panel.
Step 5 - Rear Doors Installation
Remove the original lock fixing screws.
Unclip the original wire harness clip.
Plug in the door signal wiring harness connector, smooth out the wiring harness, and fix the clips on the wiring harness. Install the lock in the original lock installation position.
Install the original wire harness clip onto the installation hole of the rear door motor box mounting bracket, at the same time install the motor box mounting bracket in the position indicated by the arrow in the diagram, and install the positioning piece.
Tighten the fixing screws.
Step 6 - Rear Doors Power Connection
Install the sound insulation panel in place, clamp the yellow wire from the T-type power line with a fuse box in the thick red-blue line +12V of the original car window lift motor wiring harness, and the black wire is clamped on the thick brown -GND ground wire. (Note: The power clamp needs to be clamped in place, use a multimeter to measure whether there is a normal +12V output at the end of the power harness)
Troubleshooting
If there is a problem with the soft closing door, you can follow the troubleshooting methods listed below.
The soft closing feature does not work:
Check whether all connectors are well connected, check the motor box harness, if necessary, re-plug it;
Remove the suction lock from the door panel, continue to power the power line, and place the cable smoothly. Use a stick tool to pull the lock tongue to the half-lock position, simulate the closing action, and check whether the motor box can drive the lock tongue to perform the suction action. If the suction is normal at this time, consider that the installation is not in place, and adjust the lock installation (refer to the installation instructions).
The soft closing door is not sensitive:
Check whether there is winding and excessive bending of the cable between the motor box and the lock head. Generally, the cable head on the lock head and the head of the motor box are most likely to bend and need special attention;
If there is no such phenomenon in the pull rope, try to remove the motor box, put the pull rope smoothly, use a stick tool, move the lock tongue to the half-lock position, simulate the closing action, and check whether the motor box can drive the lock tongue to perform the suction action. If the suction is normal at this time, consider that the installation is not in place, and adjust the installation (refer to the installation instructions).
Door cannot be opened:
Disconnect the power fuse or the power harness of the single door with a fault for 3-5 minutes, and then power it up to restore it to normal operation;
Check whether the pull rope of the inner and outer door handles is not well installed causing it to loosen;
When the rear door inner door handle cannot open the door, focus on checking whether the child lock switch on the door panel is turned on;
Focus on checking whether the installation of the lock tongue mechanism and the original car lock mechanism is in place, and whether the lock tongue positioning is not installed in place.
Door cannot be closed:
Check if the lock tongue is jammed, try to use the door handle to unlock the lock tongue;
Remove the lock head and motor box from the door panel, place the pull rope smoothly, and try whether the lock tongue can unlock smoothly.
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