Installation Instructions for Mercedes GLA 250 (2015-Present) and Infiniti QX30 (2017-Present, excluding Sport Models)

Part Numbers:

• 75223
• 44777
• CQT75223

Tools Required:

• Safety Glasses
• Ratchet
• Torque Wrench
• 6" Socket Extension
• Flat Head Screwdriver
• T30 and T40 Star Drivers
• Sockets: 8mm, 10mm, 16mm
• Silicone Sealant
• Tin Snips
• Plastic Trim Tools
• Marker

Weight Capacities:

• Weight Carrying:
  • Max Gross Trailer Weight: 3,500 lbs (1,589 kg)
  • Max Tongue Weight: 350 lbs (159 kg)
• Weight Distributing:
  • Not Applicable

Installation Time:

• Estimated: 90 minutes

Step-by-Step Instructions:

1. Remove Exhaust Tips:

• Use a T40 driver to remove (2) bolts from the bottom of the exhaust tips on each side.

2. Lower Exhaust:

• Use a 10mm socket to remove (1) bolt from each exhaust hanger bracket.
• Lower the muffler, ensuring it is supported during the process.

3. Remove Taillights:

• Open the trunk and remove (1) plastic wing nut inside on each side.
• Disconnect the wiring and carefully remove the taillights.

4. Loosen Heat Shield:

• Use an 8mm socket to remove (6) flange nuts securing the heat shield.
• Rest the heat shield on the muffler without removing it from the vehicle.

5. Remove Bumper Fascia:

• Use a 10mm socket and flat head screwdriver to remove:
  • (2) plastic rivets and (2) bolts at the bottom of the fascia per side.
  • (1) plastic rivet and (1) bolt at the rear wheel well trim panel per side.
• Gently unclip the rear wheel well trim panels and remove the fascia, ensuring all wiring is unplugged.

6. Remove Bumper Beam:

• Use a 16mm socket to remove (4) flange nuts inside the bumper panel on each side.
• Unclip wiring attached to the passenger-side bumper beam and remove the bumper.

7. Install Hitch:

• Apply silicone sealant around the openings on the end panels on each side.
• Align the hitch with the bumper beam's welded bolts and place them through the original bumper mounting holes.
• Loosely fasten the nuts.

8. Trim Heat Shield:

• Locate the center of the heat shield and trim a 2" tall x 4.5" wide area as shown in the diagram.
• Additional trimming may be needed.

9. Reassemble Components:

• Torque all bumper beam fasteners to 38 lb-ft (52 N·m).
• For Sport Models: Slightly trim the rear fascia bottom if necessary.
• Reinstall the heat shield, fascia, and exhaust system using the original hardware.

Safety Notes:

• Regularly check all fasteners to ensure the hitch is securely attached.
• If the hitch is removed, plug all holes in the trunk pan or body panels to prevent water or exhaust entry.
• Replace any damaged hitch or ball immediately.
• Always wear safety glasses and observe safety precautions when working beneath a vehicle.
• Do not cut access or attachment holes with a torch.

Specifications:

• Hitch Type: Class II
• Compliance: This product meets safety specifications as per V.E.S.C. Regulation V-5 and SAE J684.

Note: Always adhere to the towing vehicle manufacturer’s weight rating or the hitch’s maximum load rating, whichever is lower.

Installation Instructions for Mercedes GLA 250 (2015-Present) and Infiniti QX30 (2017-Present, excluding Sport Models)

Part Numbers:

• 75223
• 44777
• CQT75223

Tools Required:

• Safety Glasses
• Ratchet
• Torque Wrench
• 6" Socket Extension
• Flat Head Screwdriver
• T30 and T40 Star Drivers
• Sockets: 8mm, 10mm, 16mm
• Silicone Sealant
• Tin Snips
• Plastic Trim Tools
• Marker

Weight Capacities:

• Weight Carrying:
  • Max Gross Trailer Weight: 3,500 lbs (1,589 kg)
  • Max Tongue Weight: 350 lbs (159 kg)
• Weight Distributing:
  • Not Applicable

Installation Time:

• Estimated: 90 minutes

Step-by-Step Instructions:

1. Remove Exhaust Tips:

• Use a T40 driver to remove (2) bolts from the bottom of the exhaust tips on each side.

2. Lower Exhaust:

• Use a 10mm socket to remove (1) bolt from each exhaust hanger bracket.
• Lower the muffler, ensuring it is supported during the process.

3. Remove Taillights:

• Open the trunk and remove (1) plastic wing nut inside on each side.
• Disconnect the wiring and carefully remove the taillights.

4. Loosen Heat Shield:

• Use an 8mm socket to remove (6) flange nuts securing the heat shield.
• Rest the heat shield on the muffler without removing it from the vehicle.

5. Remove Bumper Fascia:

• Use a 10mm socket and flat head screwdriver to remove:
  • (2) plastic rivets and (2) bolts at the bottom of the fascia per side.
  • (1) plastic rivet and (1) bolt at the rear wheel well trim panel per side.
• Gently unclip the rear wheel well trim panels and remove the fascia, ensuring all wiring is unplugged.

6. Remove Bumper Beam:

• Use a 16mm socket to remove (4) flange nuts inside the bumper panel on each side.
• Unclip wiring attached to the passenger-side bumper beam and remove the bumper.

7. Install Hitch:

• Apply silicone sealant around the openings on the end panels on each side.
• Align the hitch with the bumper beam's welded bolts and place them through the original bumper mounting holes.
• Loosely fasten the nuts.

8. Trim Heat Shield:

• Locate the center of the heat shield and trim a 2" tall x 4.5" wide area as shown in the diagram.
• Additional trimming may be needed.

9. Reassemble Components:

• Torque all bumper beam fasteners to 38 lb-ft (52 N·m).
• For Sport Models: Slightly trim the rear fascia bottom if necessary.
• Reinstall the heat shield, fascia, and exhaust system using the original hardware.

Safety Notes:

• Regularly check all fasteners to ensure the hitch is securely attached.
• If the hitch is removed, plug all holes in the trunk pan or body panels to prevent water or exhaust entry.
• Replace any damaged hitch or ball immediately.
• Always wear safety glasses and observe safety precautions when working beneath a vehicle.
• Do not cut access or attachment holes with a torch.

Specifications:

• Hitch Type: Class II
• Compliance: This product meets safety specifications as per V.E.S.C. Regulation V-5 and SAE J684.

Note: Always adhere to the towing vehicle manufacturer’s weight rating or the hitch’s maximum load rating, whichever is lower.

Warranty Information:

• For complete warranty instructions, please download the full installation PDF.

Technical Support:

• For technical support and assistance, our team of experts is available to help. You can reach our tech support by visiting www.trailerjacks.com or calling 877-869-6690.

Installation Instructions for Modulite® HD Protector Vehicle Wiring

Part Number:

• 119148

Tools Required:

• Phillips Head #2 Screwdriver
• Wire Cutters
• Wire Strippers/Wire Crimpers
• Tester or Volt Meter
• Socket & Ratchet Set
• Drill with 3/32” Drill Bit
• Double-Sided Tape

Step-by-Step Instructions:

Tow Vehicle Inputs - Determination:

1. Disconnect and isolate the vehicle's negative battery terminal.
   • Warning: Read and follow all warnings and instructions on the tow vehicle's battery.
2. Splice the tow harness input wires to the vehicle as determined.
   • Caution: Use appropriate gauge wire splices. Blue taps are for 16-18 gauge wires only.

Harness Installation:

1. Determine the mounting location of the module and secure it using the double-sided tape provided.
   • Warning: Mount the module with the epoxy side pointed towards the ground to prevent water buildup.
2. Locate a suitable grounding point near the module, such as an existing ground stud, or drill a 3/32” hole to secure the white wire using the provided eyelet and screw.
   • Caution: Verify what is behind any surface before drilling to avoid damage or personal injury.
3. Route the power wire to the vehicle’s positive battery terminal. Use the provided fuse holder, butt connector, and ring terminal to connect to the battery.
   • Do not insert the 15 amp fuse yet.
   • Caution: Ensure the module is connected to a constant power source and avoid routing the wire near hot pipes, heat shields, fuel tanks, or pinch points.

Completion:

1. Secure the harness with cable ties provided to prevent damage or rattling.
2. Reconnect the vehicle's negative battery cable.
3. Insert the 15 amp fuse into the fuse holder and close the cap.
4. Test the installation using a test light or trailer. Check each function independently and in combination.

Hardware List:

• 8 × Cable Ties, 8.5”
• 1 × 15 AMP Fuse
• 2 × Ring Terminals
• 1 × Fuse Holder
• 2 × Yellow Butt Connectors
• 1 × Self-Tapping Screw
• 4 × Blue Taps
• 1 × Spade Terminal

Wiring Outputs:

• White Wire: Ground
• Brown Wire: Tail
• Yellow Wire: Left Turn/Brake
• Green Wire: Right Turn/Brake
• Red Wire: Stop (for 3-wire systems only)

Safety Notes:

• Always read and follow all warnings and instructions included with the product and the vehicle's manual.
• Do not exceed the manufacturer’s towing capacity or the product’s amperage ratings.
• Wear safety glasses and use all necessary safety precautions during installation.

Troubleshooting Guide:

• 4-Flat Not Functioning: Ensure input wires are correctly installed and repeat testing after removing the 15 amp fuse for 10 seconds.
• No Power to 4-Flat: Check the chassis ground and ensure the module is properly connected to a constant power source.

Specifications:

• Installation Time: Approximately 45 minutes
• Compatibility: Does not work with multiplex vehicles (BM, BT, or BTT). Use part numbers 119190 or 119250 for these systems.

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

For technical support and assistance, our team of experts is available to help. You can reach our tech support by visiting www.trailerjacks.com or calling 877-869-6690.

For warranty information, please download the full installation PDF.