Installation Instructions for 2011-Present BMW 2-Series, 3-Series, and 4-Series Sedan

Part Numbers:

• 11367

Tools Required:

• Ratchet
• Torque Wrench
• 8mm, 10mm, and 18mm Sockets
• T20 Torx Bit Socket
• Socket Extension
• Safety Glasses

Step-by-Step Instructions:

Step 1: Remove the tail lights

• Open the trunk and remove the tail lights.
• Use an 8mm socket to remove (2) screws located behind the plastic covers in the trunk well.

Step 2: Remove the heat shield

• Use an 8mm socket to remove (4) bolts located below the bumper cover.
• Use a 10mm socket to remove (3) bolts above the exhaust.
• Return the heat shield and fasteners to the vehicle owner.

Step 3: Remove the splash guards

• Use an 8mm socket to remove (4) bolts on each side of the vehicle to detach the splash guards.

Step 4: Access hidden screws in the wheel wells

• Unscrew the rearmost end of both wheel wells using 8mm and 10mm sockets.
• Pull back the wheel well lining to reveal a T20 Torx screw. Remove the screw from both sides.

Step 5: Remove the bumper cover

• Use a 10mm socket to remove (5) bolts along the bottom edge of the cover and the top edge near the tail light openings.
• Gently pull off the bumper cover.

Step 6: Remove the bumper beam

• Use an 18mm socket to remove (4) nuts, with (2) nuts on each side, securing the bumper beam.
• Disconnect any wiring before completely removing the bumper beam, especially for optional vehicle features.

Step 7: Install the hitch

• Slide the hitch onto the rear panel studs.
• Reinstall the bumper beam onto the studs and secure it using the existing fasteners.
• Torque all M10 nuts to 89 ft-lbs.

Step 8: Reinstall components

• Reinstall the bumper cover, splash guards, and tail lights by reversing Steps 1-5.

Safety Notes:

• Safety glasses must be worn at all times during installation.
• Periodically inspect the hitch to ensure all fasteners are tight and structural components are sound.
• Stabilizing straps (#18050) are required for all non-trailer (wheel-less) loads.
• Never exceed the vehicle manufacturer's recommended towing capacity.

Specifications:

• Gross Trailer Weight: 2,000 lbs
• Tongue Weight: 200 lbs

For additional support, contact Technical Support at 877-287-8634.

Installation Instructions for Wiring Harness with Powered Converter

Part Numbers:

• 59236

Wiring Access Location:

Refer to the wiring location guides based on vehicle type provided in the manual:

SUVs and Vans:

• S1: Behind driver-side taillight housing
• S2: Behind passenger-side taillight housing
• S3: Behind driver-side rear access panel
• S4: Behind passenger-side rear access panel
• S5: Behind driver-side rear bumper
• S6: Behind the center of the rear bumper
• S7: Behind passenger-side rear bumper
• S8: Under rear floor panel

Passenger Cars:

• P1: Behind driver-side taillight housing, outside of the trunk
• P2: Behind passenger-side taillight housing, outside of the trunk
• P3: Behind driver-side taillight housing, inside the trunk
• P4: Behind passenger-side taillight housing, inside the trunk
• P5: Behind driver-side rear bumper
• P6: Behind the center of the rear bumper
• P7: Behind passenger-side rear bumper

Trucks:

• T1: Behind driver-side taillight housing
• T2: Behind passenger-side taillight housing
• T3: Behind driver-side rear bumper
• T4: Behind the center of the rear bumper fascia
• T5: Behind passenger-side rear bumper

Determining Vehicle Wiring Types:

To identify the vehicle wiring type, follow these steps:

1. Ensure all lights on the vehicle are off.
2. Probe the taillight connectors while they remain connected to the vehicle.
3. Use the following wiring descriptions to determine the vehicle type:

Wiring Types:

• Two-Wire System:

  • Combined stop and turn signal with an independent tail signal.
  • Indicator: Flashing signal on one side for turn signals; both sides activate for brakes.

• Three-Wire System:

  • Independent stop, turn, and tail signals.
  • Indicator: Separate wires for turn signals and brake lights.

• PWM-ST System:

  • Combined stop and tail signal with an independent turn signal.
  • Indicator: Stop and tail signals use the same wire; separate turn signal wires.

• PWM-STT System:

  • Combined stop, turn, and tail signal.
  • Indicator: A single wire serves stop, turn, and tail functions.

Tools Required:

• Test light
• Utility knife
• Electrical tape
• Wire crimper
• Paper
• Wire stripper
• Pen

Step-by-Step Instructions:

1. Locate the Vehicle Battery

   • Disconnect the negative battery terminal securely.

2. Identify Vehicle Taillight Wiring

   • Use the wiring location guide and instructions for determining the wiring type.

3. Attach the Input Wires

   • Match wires using snap locks:
     • Green Wire: Splice to the right stop/turn wire.
     • Red Wire: Ground with the white wire.
     • Yellow Wire: Splice to the left stop/turn wire.
     • Brown Wire: Splice to the tail wire.

4. Mount the Converter

   • Secure the black converter box near the taillight using the provided double-sided tape.

5. Ground the White Wire

   • Use the ring terminal and provided screw to ground the wire at a clean, rust-free location.

6. Route the Power Wire

   • Route the black wire to the positive battery terminal, avoiding pinch points or hot components.

7. Install the Fuse

   • Add the 15-amp fuse after completing all other steps.

8. Test the System

   • Verify turn signals, brake lights, and tail lights using a test light or trailer.

9. Reinstall Components

   • Reinstall all removed parts and reconnect the negative battery terminal.

Hardware List:

• Snap locks
• 15-amp fuse and holder
• Ring terminal
• Cable ties
• Double-sided tape

Safety Notes:

• Do not exceed product or tow vehicle lamp load ratings.
• Inspect all wiring periodically for damage or loose connections.
• Avoid drilling without confirming there are no hidden items behind the surface.

Specifications:

• Signal Circuits: 5.0-amps per side
• Tail/Running Circuits: 7.5-amps total
• Compliance: SAE J684