Installation Instructions for Trailer Hitch #76226, #84226, and #CQT76226

Part Numbers:

• 76226
• 84226
• CQT76226

Applications:

• Years: 2011–Current
• Make and Models:
  • BMW X3
  • BMW X4

For accurate fitment and additional details, consult the manufacturer’s website.

Tools Required:

• Ratchet
• Torque Wrench
• Safety Glasses
• Sockets: 8 mm, 10 mm, 13 mm, 18 mm
• T20 Star Driver
• 6" Socket Extension
• Drill with 1/8" Drill Bit
• Plastic Rivet Gun
• Plastic Trim Tools
• Flat Head Screwdriver
• Utility Knife
• Marker
• Tape Measure
• Blue Thread Locker
• Silicone Sealant

Step-by-Step Instructions:

1. Remove Taillights:

• Open the tailgate and remove plastic covers near the taillights using a flat head screwdriver.
• X3 Models (2011-2017): Remove hex nuts securing the taillights.
• X3 Models (2018+): Remove bolts behind the interior cargo panel.
• X4 Models: Remove additional screws and grommets to disconnect the taillights.

2. Remove Underbody Panel:

• Use 8 mm and 10 mm sockets to remove screws and hex nuts from the underbody panel. Set the panel aside.

3. Remove Fascia:

• Remove screws beneath the taillights and along the bottom edge of the fascia.
• Drill out plastic rivets securing the wheel well trim and remove screws hidden behind it.
• Carefully remove the fascia using trim tools, and disconnect the wiring harness before setting it aside.

4. Remove Bumper Beam:

• Detach sensor wiring and exhaust hanger brackets using a 13 mm socket.
• Use an 18 mm socket with a 6" extension to remove hex flange nuts securing the bumper beam.

5. Install Hitch and Bumper Beam:

• Apply blue thread locker to all studs.
• Ensure foam gaskets are intact; apply silicone sealant if necessary.
• Align the hitch and bumper beam, securing them with existing M12 hex flange nuts.
• Torque all M12 fasteners to 68 lb-ft (92 N·m).
• Reattach exhaust hangers and torque hex nuts to 25 lb-ft (34 N·m).

6. Trim and Reinstall Fascia:

• Trim the fascia per the guidelines provided in the installation manual using a utility knife and marker.
• Reinstall the fascia, wheel well trim, and taillights.

Hardware List:

• 8 × Plastic Rivets
• Existing M12 Hex Flange Nuts

Safety Notes:

• Wear safety glasses during installation.
• Regularly check that all fasteners and the hitch ball are securely tightened.
• Plug any holes in the trunk pan or body panels if the hitch is removed to prevent water and exhaust fumes from entering the vehicle.
• Do not cut access or attachment holes with a torch.
• Replace any damaged hitch components or hitch ball before use.

Specifications:

• Max Gross Trailer Weight (Weight Carrying): 5,000 lbs (2,270 kg)
• Max Tongue Weight (Weight Carrying): 750 lbs (341 kg)
• Weight Distribution: Not applicable
• Installation Time: Approximately 90 minutes

This product complies with V.E.S.C. Regulation V-5 and SAE J684 safety specifications for towing systems.

Technical Support:

For assistance, visit www.trailerjacks.com or call 877-869-6690.

Attention: This is a summary of the installation procedure. For complete installation instructions, including diagrams, please download the full installation PDF.

Installation Instructions for T-One® T-Connector for BMW X3

Part Numbers:

• 118823

Tools Required:

• Trim Panel Remover
• 10mm Socket & Ratchet or Wrench
• Drill (3/32” Drill Bit)
• Wire Crimpers
• Wire Cutters
• Phillips Head Screwdriver
• Test Probe

Step-by-Step Instructions:

1. Open the Hatch and Remove Interior Panels:

   • Open the hatch and partially remove the plastic threshold cover, side panels, and cargo trays.
   • Remove the rear interior trim panels on both the driver and passenger sides.
   • Use a trim panel remover tool to detach the panels without damaging the clips or parts.

2. Locate the Vehicle Wiring Harness:

   • On both the driver and passenger sides, locate the taillight wiring harness behind the panels.
   • Disconnect the wiring harness carefully, ensuring not to break the locking tabs. Ensure all connectors are clean and free of dirt.

3. Connect the Driver-Side T-Connector:

   • Insert the T-One® Connector end with the yellow wire between the vehicle wiring connectors.
   • Lock the connectors into place, ensuring they are fully inserted with locking tabs secure.

4. Route the Passenger-Side T-Connector:

   • Route the T-One® Connector end with the green wire down the threshold and across to the passenger side.
   • Connect the T-Connector end with the green wire between the passenger-side wiring connectors.

5. Ground the White Wire:

   • Locate a suitable grounding point near the connector, such as the vehicle frame or crossmember.
   • Clean the grounding area to remove dirt and rustproofing.
   • Drill a 3/32” hole and secure the white wire using the provided eyelet and screw.

   Caution: Verify what is behind the surface before drilling to avoid damage or injury.

6. Route the Power Wire:

   • Locate the black 12-gauge power wire from the T-One® Connector box.
   • Attach the provided black wire and route it along the frame rail to the vehicle’s battery.
   • Avoid hot pipes, heat shields, or other areas that may pinch or break the wire.

7. Connect to the Vehicle Battery:

   • Disconnect the Negative (-) battery cable.
   • Remove the fuse from the yellow fuse holder and attach the ring terminal to the Positive (+) battery cable.
   • Connect the other end of the fuse holder to the black 12-gauge wire using the provided yellow butt connector.

   Warning: Follow all warnings printed on the tow vehicle’s battery.

8. Reconnect the Battery and Test:

   • Reconnect the Negative (-) battery cable.
   • Insert the 15-amp fuse into the fuse holder.
   • Test the installation using a test light or trailer.

9. Mount the Black Box Module:

   • Locate a flat, out-of-the-way surface near the installation area and mount the black box module using the provided double-sided tape.

10. Secure the Wiring Harness:

    • Use the provided cable ties to secure the wiring harness, avoiding areas that may pinch, cut, or melt the wire.

11. Reassemble the Vehicle:

    • Reinstall all panels, trim, and components removed during installation, ensuring no wires are pinched or damaged.

12. Store the 4-Flat Connector:

    • When not in use, store the 4-flat connector in the rear cargo area. When in use, pull it through the hatch and close the door.

    Caution: Avoid pinching the harness in the door latch.

Safety Notes:

• Overloading circuits can cause fires. Do not exceed stated product ratings or vehicle manufacturer specifications.
• Always wear safety glasses and follow all safety precautions during installation.

Manufacturer Notes:

• Refer to the vehicle owner’s manual and the instruction sheet for additional details.
• Store these instructions for future reference.