For 2021‑2023 Mercedes‑Benz GLE350 Tekonsha Brakeman IV Brake Control + Plug & Play BC Adapter By Tekonsha
Model: 8507120 3066-620This Bundle Fits The Following Vehicles:
2021-2023 Mercedes-Benz GLE350
This Bundle Includes the Following Parts:
Tekonsha Brakeman IV Brake Control
Plug & Play BC Adapter
List of fitment years:
2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
Brakeman® IV Time-Delay Brake Controller for Trailers with 1-4 Axles, Black Manufactured by: Tekonsha
The Tekonsha Brakeman IV digital brake control is designed to handle from one to four braking axles and includes a digital display. The digital display indicates the amount of voltage power being delivered to the brakes and assists in accurately adjusting the trailer brakes for city or highway driving. Separate adjustment controls (Output & Sync) allow for not only the different weights (Output) of trailers, but also the speed of activation (Sync) depending on your driving style.
• Small compact design
• Easy push button adjustment for output and sync
• Plug and play feature allows quick and easy connection
• Digital Display output setting, sync setting, brake overload or short connection
• Advanced internal circuit protection
• No leveling required
• Mounts in any direction
• For use on 12 volt negative ground systems only
Trailer Brake Controller Wiring Harness Manufactured by: Tekonsha
Our 2-Plug units are designed for brake controls that have a wiring port built into the back of the unit. Simply plug the brake control end of the wiring harness into the back of the brake control and the vehicle end into the automobile's port. Brake controls that utilize the 2-plug style of wiring harness will be identified with the Plug & Play logo.
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Product Details
- Brand: Tekonsha
- Model: 8507120 3066-620
- Includes: Brakeman IV Time-Delay Brake Controller for Trailers with 1-4 Axles, Trailer Brake Controller Custom Harness
Compatibility Chart
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For 2021-2023 Mercedes-Benz GLE350 Tekonsha Brakeman IV Brake Control + Plug & Play BC Adapter By Tekonsha Install Notes
Installation Instructions for Electric Trailer Brake Control Wiring Adapter
Part Number: 306600
Tools Required:
- Trim Panel Remover
Step-by-Step Instructions:
Step 1: Prepare the Vehicle
- Ensure the vehicle is off, and the keys are removed from the ignition.
Step 2: Locate the Vehicle’s Electric Brake Control Harness
- Locate the vehicle’s electric brake control harness connector:
- It is found underneath the dashboard.
- Pull back the carpet behind the brake pedal to expose the connector.
- The connector will be a 4-pin plug that matches the adapter’s connector.
Step 3: Connect the Brake Control Adapter
- CAUTION:
- Plug the adapter into the backside of the brake controller before connecting it to the vehicle harness.
- Plug the brake control adapter into the vehicle’s electric brake control harness connector.
- Follow the brake control manufacturer’s instructions for wiring and mounting the unit.
Step 4: Route the Adapter
- Identify a suitable routing path for the adapter to exit through the bottom of the dashboard.
- Ensure the adapter’s wiring avoids any:
- Airbag deployment zones
- Sharp edges or pinch points that could damage the wire.
Step 5: Complete the Installation
- Complete the installation per the brake control manufacturer’s instructions.
- Mount the brake controller securely as directed.
- Perform all test procedures outlined in the brake controller manual to confirm proper operation.
Safety Warnings:
- Overloading the Circuit Can Cause Fires:
- DO NOT exceed the lower of:
- The vehicle manufacturer’s towing rating, or
- Maximum Capacity: 3 axles / 6 brakes (16 amps).
- DO NOT exceed the lower of:
- Carefully follow the vehicle owner’s manual and brake control manufacturer instructions.
Safety Notes:
- Always wear safety glasses and follow all safety precautions during installation.
- Periodically inspect all connections and wires for wear, damage, or looseness.
- Avoid routing wires near sharp edges, heat sources, or moving components.
Wiring Overview:
- Trailer Brake Controller (Output): Sends braking signals to the trailer brakes.
- Fused Battery Feed: Supplies power to the brake controller.
- Ground: Ensures secure grounding for proper operation.
- Stop Lamp Switch (Input): Sends braking signal from the vehicle to the brake controller.
End of Instructions
Installation Instructions for Electric Trailer Brake Control Wiring Adapter
Part Number: 306600
Tools Required:
- Trim Panel Remover
Step-by-Step Instructions:
Step 1: Prepare the Vehicle
- Ensure the vehicle is off, and the keys are removed from the ignition.
Step 2: Locate the Vehicle’s Electric Brake Control Harness
- Locate the vehicle’s electric brake control harness connector:
- It is found underneath the dashboard.
- Pull back the carpet behind the brake pedal to expose the connector.
- The connector will be a 4-pin plug that matches the adapter’s connector.
Step 3: Connect the Brake Control Adapter
- CAUTION:
- Plug the adapter into the backside of the brake controller before connecting it to the vehicle harness.
- Plug the brake control adapter into the vehicle’s electric brake control harness connector.
- Follow the brake control manufacturer’s instructions for wiring and mounting the unit.
Step 4: Route the Adapter
- Identify a suitable routing path for the adapter to exit through the bottom of the dashboard.
- Ensure the adapter’s wiring avoids any:
- Airbag deployment zones
- Sharp edges or pinch points that could damage the wire.
Step 5: Complete the Installation
- Complete the installation per the brake control manufacturer’s instructions.
- Mount the brake controller securely as directed.
- Perform all test procedures outlined in the brake controller manual to confirm proper operation.
Safety Warnings:
- Overloading the Circuit Can Cause Fires:
- DO NOT exceed the lower of:
- The vehicle manufacturer’s towing rating, or
- Maximum Capacity: 3 axles / 6 brakes (16 amps).
- DO NOT exceed the lower of:
- Carefully follow the vehicle owner’s manual and brake control manufacturer instructions.
Safety Notes:
- Always wear safety glasses and follow all safety precautions during installation.
- Periodically inspect all connections and wires for wear, damage, or looseness.
- Avoid routing wires near sharp edges, heat sources, or moving components.
Wiring Overview:
- Trailer Brake Controller (Output): Sends braking signals to the trailer brakes.
- Fused Battery Feed: Supplies power to the brake controller.
- Ground: Ensures secure grounding for proper operation.
- Stop Lamp Switch (Input): Sends braking signal from the vehicle to the brake controller.
End of Instructions
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.
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:
- Warranty Duration: 1 year from the date of purchase.
- Coverage: The product is warranted against defects in materials and workmanship under normal use.
- For complete warranty instructions, please download the full installation PDF.
Installation and Operation Instructions for Electronic Brake Control
Part Numbers:
- Included Brake Control Unit: Part Number N8507120
Tools Required:
- Drill with 1/8" bit.
- Screwdriver or 1/4" nut driver.
- Wire connector crimp tool.
- Probe-type circuit tester.
- Assorted end wrenches.
- Wire cutter/stripper.
Safety Notes:
- Ensure the area behind the panel is clear before drilling.
- Follow all instructions to prevent damage to the unit or injury during installation.
- Avoid using RF-generating devices closer than 12 inches to the brake control.
- Always verify proper electrical connections.
Hardware List:
- Brake Control Unit.
- Mounting Bracket.
- (4) Mounting Screws.
- Additional Materials Required:
- 10 Ga. wire.
- 30 Amp auto-reset circuit breaker.
- Assorted ring terminal & butt connectors.
- 4" cable ties (6-10).
Installation Instructions:
Mounting the Unit:
- Choose a Suitable Location:
- Ensure a secure, solid surface.
- Ensure the unit is within easy reach of the driver.
- Verify the area behind the panel is clear.
- Mark and Drill Holes:
- Use the bracket as a template to mark hole locations.
- Drill two 1/8" diameter holes.
- Attach the Bracket:
- Secure the bracket using two self-tapping screws provided.
- Avoid over-tightening to prevent damage to the holes.
- Mount the Brake Control Unit:
- Attach the control unit to the bracket with the remaining screws.
Wiring and Connections:
- Black Wire: Connect to the vehicle's power supply.
- Red Wire: Connect to the stoplight signal.
- White Wire: Connect to the vehicle's ground.
- Blue Wire: Connect to the trailer brakes.
Initial Setup:
- With the trailer connected, press and hold the brake pedal.
- Adjust the Output (Gain) Control to approximately 2.0 using the digital display.
- Adjust the Sync Control to a setting of 4°.
- Test the brake application by driving in an open area and using the manual slide control.
Sync and Output (Gain) Adjustments:
- Sync Control: Adjust the aggressiveness of trailer braking.
- Sync settings range from 0° (least aggressive) to 9° (most aggressive).
- Output (Gain) Control: Adjust the maximum power delivered to the brakes.
- Output ranges from 0 to 10, with 10 being maximum braking power.
Testing and Fine-Tuning:
- Conduct a test drive at low speeds in a clear area.
- Use the Manual Slide Control to apply trailer brakes and adjust the Gain as needed.
- Verify smooth stops without jerking or locking the brakes.
- Adjust Sync settings for road conditions and driver preferences.
Maintenance:
- Regularly inspect all connections and wires for damage or wear.
- Keep the unit clean and free of debris.
- Periodically check and tighten all mounting screws.
Troubleshooting Guide:
| Condition | Probable Cause | Solution |
|---|---|---|
| No trailer brakes. | No power or incorrect wiring. | Check power and ground connections. |
| Weak trailer braking. | Low Output (Gain) setting. | Increase the Gain setting. |
| Brakes lock when applied. | High Output (Gain) setting. | Decrease the Gain setting. |
| Display shows "OL" when active. | Short in the blue wire circuit. | Locate and correct the short. |
| Display shows "Er". | Internal brake control issue. | Refer to the full installation PDF for guidance. |
Warranty Information:
- Limited Lifetime Warranty:
- Covers defects in materials and workmanship.
- Excludes damage caused by misuse or improper installation.
- 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.
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.
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