Installation Instructions for Mercedes GLE350 (2021-Present)

Part Numbers:

• 76590
• 84590
• CQT76590

Tools Required:

• Safety Glasses
• Ratchet
• Torque Wrench
• Sockets: 8mm, 10mm, 12mm, 18mm
• 6" Socket Extension
• Flat Head Screwdriver
• Plastic Trim Tools
• T30 Torx Bit
• Tape Measure
• Marker
• Die Grinder

Weight Capacities:

• Weight Carrying:
  • Max Gross Trailer Weight: 8,000 lbs (3,628 kg)
  • Max Tongue Weight: 800 lbs (363 kg)
• Weight Distributing:
  • Not Applicable

Installation Time:

• Estimated: 1.5 hours

Step-by-Step Instructions:

1. Remove Fascia:

• Bottom Fascia: Using a 10mm socket, remove (8) bolts from the bottom of the fascia.
• Wheel Well: Use a flat head screwdriver to remove (3) rivets from the outside and (1) rivet from inside the wheel well liner on each side. Remove (1) bolt using a 10mm socket inside each wheel well liner.
• Rear Trim: Open the tailgate and remove (1) screw from the rear trim panel using a T30 Torx bit. Remove the plastic trim.
• Side Panels: Remove the plastic covers from both driver and passenger side panels. Remove the bolt cover from the cargo tie hook using a plastic trim tool and a 12mm socket. Remove (1) bolt from each hook.
• Taillights: Remove the cover from the passenger side panel. Use an 8mm socket with an extension to remove (3) hex nuts securing the taillights on each side. Disconnect the wiring harness and remove the taillights.
• Detach Fascia: Use plastic trim tools to remove the fascia starting at the outer edges near the wheel wells. Carefully pull the fascia while disconnecting the wiring harness.

2. Remove Bumper Beam:

• Use an 18mm socket to remove (4) M12 flange nuts from the bolts securing the bumper beam on each side. Remove the bumper beam and return it to the vehicle owner.
• Note: The tow eye will be inoperative after the bumper beam is removed. Use the chain ring on the hitch as an alternative.

3. Install Hitch:

• Raise the hitch into position, aligning the holes with the studs on the end panel. Loosely install (8) factory M12 flange nuts.

4. Tighten Fasteners:

• Use a torque wrench to tighten all M12x1.5 fasteners to 68 ft-lbs (92 N·m).

5. Trim Fascia:

• Use a tape measure, marker, and die grinder to measure and trim the bottom cover of the fascia as shown in the diagram.

6. Reinstall Components:

• Reinstall the fascia, taillights, plastic covers, plastic trim, and all fasteners in reverse order.

Safety Notes:

• Regularly inspect the hitch to ensure all fasteners and the ball mount are secure.
• If the hitch is removed, plug any holes in the trunk pan or body panels to prevent water or exhaust fume entry.
• Replace any damaged hitch or ball immediately.
• Always wear safety glasses and observe safety precautions when working under a vehicle.
• Do not cut holes with a torch.

Specifications:

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

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

Installation Instructions for Mercedes GLE350 (2021-Present)

Part Numbers:

• 76590
• 84590
• CQT76590

Tools Required:

• Safety Glasses
• Ratchet
• Torque Wrench
• Sockets: 8mm, 10mm, 12mm, 18mm
• 6" Socket Extension
• Flat Head Screwdriver
• Plastic Trim Tools
• T30 Torx Bit
• Tape Measure
• Marker
• Die Grinder

Weight Capacities:

• Weight Carrying:
  • Max Gross Trailer Weight: 8,000 lbs (3,628 kg)
  • Max Tongue Weight: 800 lbs (363 kg)
• Weight Distributing: Not Applicable

Installation Time:

• Estimated Time: 1.5 hours

Step-by-Step Instructions:

1. Remove Fascia:

• Bottom Fascia:
  • Remove (8) bolts using a 10mm socket.
• Wheel Well:
  • Use a flat head screwdriver to remove (3) rivets on the outside and (1) inside the liner on each side.
  • Remove (1) bolt using a 10mm socket inside each wheel well liner.
• Rear Trim:
  • Open the tailgate and remove (1) screw using a T30 Torx bit.
  • Detach the plastic trim.
• Side Panels:
  • Remove plastic covers from both driver and passenger side panels.
  • Remove the bolt cover from the cargo tie hook using a plastic trim tool and a 12mm socket.
  • Remove (1) bolt from each hook.
• Taillights:
  • Remove the cover from the passenger side panel.
  • Remove (3) hex nuts using an 8mm socket with an extension.
  • Disconnect the wiring harness and remove the taillights.
• Detach Fascia:
  • Use plastic trim tools to release the fascia starting near the wheel wells.
  • Carefully pull while disconnecting the wiring harness.

2. Remove Bumper Beam:

• Use an 18mm socket to remove (4) M12 flange nuts from each side.
• Remove and retain the bumper beam for the owner.
• Important: The tow eye will no longer function. Use the hitch chain ring instead.

3. Install Hitch:

• Align the hitch with the studs on the vehicle’s end panel.
• Loosely secure using (8) factory M12 flange nuts.

4. Tighten Fasteners:

• Use a torque wrench to tighten all M12x1.5 fasteners to 68 ft-lbs (92 N·m).

5. Trim Fascia:

• Measure and mark the trim area on the bottom cover of the fascia using a tape measure and marker.
• Trim using a die grinder per the specified diagram.

6. Reinstall Components:

• Reinstall the fascia, taillights, plastic covers, and all fasteners in reverse order.

Safety Notes:

• Regularly inspect the hitch and fasteners for proper tightness.
• Plug any body panel holes if the hitch is removed to prevent water or fume entry.
• Replace damaged hitch components immediately.
• Always wear safety glasses and use proper precautions when working beneath the vehicle.
• Do not use a torch to cut holes.

Specifications:

• Hitch Type: Class III
• Compliance: Meets V.E.S.C. Regulation V-5 and SAE J684 standards.

Note: Always adhere to the lower of the vehicle manufacturer’s weight rating or the hitch’s maximum capacity. For complete installation details, including diagrams, please download the full installation PDF. For technical support, visit www.trailerjacks.com or call 877-869-6690.

Installation Instructions for T-Connector Adapter

Part Numbers:

• 119251

Wiring Access Location:

• Inside the rear cargo area and along the vehicle's frame to the battery.

Tools Required:

• Phillips head #2 screwdriver
• Drill with 3/32” drill bit
• Wire cutters
• Wire strippers/crimpers
• Socket and ratchet set
• Volt meter or circuit tester

Step-by-Step Instructions:

1. Prepare for Installation:

   • Disconnect the vehicle’s negative battery terminal.
   • Open the rear hatch and remove the cargo floor, spare tire cover, and any panels blocking access to the wiring.

2. Determine Wiring System:

   • Use a volt meter or circuit tester to identify the vehicle's wiring system:
     • 2-wire system: Turn and brake signals are combined on one wire.
     • 3-wire system: Turn, brake, and tail signals are on separate wires.
     • Multiplexed systems: Brake and tail or all functions are combined.

3. Mount the Module:

   • Select a flat, secure location near the rear of the vehicle for the module.
   • Use the provided double-sided tape to secure the module with the epoxy side facing down to prevent water buildup.

4. Connect the T-Connector Harness:

   • Attach the appropriate wires from the T-Connector harness to the vehicle’s wiring:
     • Yellow wire: Left turn signal.
     • Green wire: Right turn signal.
     • Brown wire: Tail light signal.
     • Red wire (if applicable): Brake signal.

5. Secure the Ground:

   • Locate an existing ground point or drill a 3/32” hole near the module.
   • Clean the area of dirt and rustproofing. Secure the white wire with the provided eyelet and screw.

6. Route the Power Wire:

   • Attach the black wire from the module to the provided 12-gauge power wire using the yellow butt connector.
   • Route the power wire along the vehicle’s frame to the positive battery terminal, avoiding hot surfaces and moving parts.

7. Connect to the Battery:

   • Attach the fuse holder’s ring terminal to the positive battery terminal.
   • Connect the other end of the fuse holder to the power wire using the yellow butt connector.
   • DO NOT insert the fuse at this time.

8. Secure the Wiring:

   • Use the provided cable ties to secure all loose wires to prevent movement or damage.

9. Final Steps:

   • Reconnect the vehicle’s negative battery terminal.
   • Insert the 15-amp fuse into the fuse holder.
   • Test the installation with a test light or trailer.
   • Replace all removed panels and covers, ensuring no wires are pinched or exposed.

   Specifications:

   • Max. stop/turn light: 2 per side (4.2 amps).
   • Max. tail lights: (7.5 amps).

Hardware List:

• T-Connector adapter
• Eyelet and screw
• Yellow butt connectors
• 15-amp fuse and fuse holder
• Cable ties
• Double-sided tape

Safety Notes:

• Do not exceed the lower of the towing manufacturer’s rating or the unit specifications.
• Ensure all connections are secure and clean.

Manufacturer Notes:

• Use a test light or trailer to verify proper installation.
• Refer to the vehicle owner’s manual for additional guidance.
• If the system is not functioning correctly, follow the troubleshooting steps provided.

Installation Instructions for T-Connector Adapter

Part Numbers:

• 119251

Wiring Access Location:

• Inside the rear cargo area and along the vehicle's frame to the battery.

Tools Required:

• Phillips head #2 screwdriver
• Drill with 3/32” drill bit
• Wire cutters
• Wire strippers/crimpers
• Socket and ratchet set
• Volt meter or circuit tester

Step-by-Step Instructions:

1. Prepare for Installation:

   • Disconnect the vehicle’s negative battery terminal.
   • Open the rear hatch and remove the cargo floor, spare tire cover, and any panels blocking access to the wiring.

2. Determine Wiring System:

   • Use a volt meter or circuit tester to identify the vehicle's wiring system:
     • 2-wire system: Turn and brake signals are combined on one wire.
     • 3-wire system: Turn, brake, and tail signals are on separate wires.
     • Multiplexed systems: Brake and tail or all functions are combined.

3. Mount the Module:

   • Select a flat, secure location near the rear of the vehicle for the module.
   • Use the provided double-sided tape to secure the module with the epoxy side facing down to prevent water buildup.

4. Connect the T-Connector Harness:

   • Attach the appropriate wires from the T-Connector harness to the vehicle’s wiring:
     • Yellow wire: Left turn signal.
     • Green wire: Right turn signal.
     • Brown wire: Tail light signal.
     • Red wire (if applicable): Brake signal.

5. Secure the Ground:

   • Locate an existing ground point or drill a 3/32” hole near the module.
   • Clean the area of dirt and rustproofing. Secure the white wire with the provided eyelet and screw.

6. Route the Power Wire:

   • Attach the black wire from the module to the provided 12-gauge power wire using the yellow butt connector.
   • Route the power wire along the vehicle’s frame to the positive battery terminal, avoiding hot surfaces and moving parts.

7. Connect to the Battery:

   • Attach the fuse holder’s ring terminal to the positive battery terminal.
   • Connect the other end of the fuse holder to the power wire using the yellow butt connector.
   • DO NOT insert the fuse at this time.

8. Secure the Wiring:

   • Use the provided cable ties to secure all loose wires to prevent movement or damage.

9. Final Steps:

   • Reconnect the vehicle’s negative battery terminal.
   • Insert the 15-amp fuse into the fuse holder.
   • Test the installation with a test light or trailer.
   • Replace all removed panels and covers, ensuring no wires are pinched or exposed.

   Specifications:

   • Max. stop/turn light: 2 per side (4.2 amps).
   • Max. tail lights: (7.5 amps).

Hardware List:

• T-Connector adapter
• Eyelet and screw
• Yellow butt connectors
• 15-amp fuse and fuse holder
• Cable ties
• Double-sided tape

Safety Notes:

• Do not exceed the lower of the towing manufacturer’s rating or the unit specifications.
• Ensure all connections are secure and clean.

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:

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.

Warranty Information:

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

Manufacturer Notes:

• Use a test light or trailer to verify proper installation.
• Refer to the vehicle owner’s manual for additional guidance.
• If the system is not functioning correctly, follow the troubleshooting steps provided.