E39 Tail Light Wiring Diagram

Are you struggling with the wiring of your E39 tail lights? Do you want to know the proper way to install them? Look no further as we have got you covered in this detailed journal article on the E39 tail light wiring diagram.

What is an E39 Tail Light?

The E39 is a vehicle model from BMW. The tail light is an important part of the E39, which comprises the brake light, indicator light, and reversing light. The tail lights are responsible for projecting light from the rear of the vehicle, allowing vehicles following behind to see when the E39 is braking, reversing, or indicating a turn.

In this discussion, we will be focusing on how to properly install the tail lights of your E39.

Tools Required

Before you start installing your tail lights, ensure that you have the following tools:

Tools Quantity
Screwdriver x1
Wire stripper x1
Tape measure x1
Soldering iron x1
Heat shrink x1

Understanding the Wiring Diagram

Before you start wiring your E39 tail light, you need to have a basic understanding of the wiring diagram. A wiring diagram is a visual representation of the electrical circuit that shows the connections between the components.

The wiring diagram for the E39 tail light consists of three main parts:

  1. The brake light circuit
  2. The indicator light circuit
  3. The reversing light circuit

Each of these circuits has its own set of wires that must be connected appropriately.

The Brake Light Circuit

The brake light circuit is responsible for lighting up the brake lights of your E39 when you apply the brakes. The circuit consists of the following wires:

  1. A positive wire (usually red or white)
  2. A negative wire (usually black)
  3. A wire that connects to the brake switch

The Indicator Light Circuit

The indicator light circuit is responsible for lighting up the indicator lights of your E39 when you signal to turn. The circuit consists of the following wires:

  1. A positive wire (usually green or yellow)
  2. A negative wire (usually black)
  3. A wire that connects to the turn signal switch

The Reversing Light Circuit

The reversing light circuit is responsible for lighting up the reversing lights of your E39 when you put the car in reverse gear. The circuit consists of the following wires:

  1. A positive wire (usually green or yellow)
  2. A negative wire (usually black)
  3. A wire that connects to the reverse light switch

How to Wire E39 Tail Lights

Now that you have an understanding of the wiring diagram, it’s time to install the tail lights. Here’s how to wire E39 tail lights:

Step 1

Remove the tail lights from your E39. You can do this by unscrewing the bolts holding the tail lights in place.

Step 2

Remove the old wires from the tail lights. Use a wire stripper to strip 1/2 inch of insulation from the end of each wire.

Step 3

Refer to the wiring diagram and hold the wires up to the corresponding sections. Ensure that the positive and negative wires are connected correctly.

Step 4

Use a soldering iron to connect the wires together. You can use heat shrink to seal the connections.

Step 5

Reinstall the tail lights back onto your E39. Screw them back in place.

Frequently Asked Questions

1. Can I replace my E39 tail lights with aftermarket ones?

Yes, you can replace your E39 tail lights with aftermarket ones. Ensure that the aftermarket tail lights you purchase are compatible with your vehicle.

2. Can I install the tail lights myself?

Yes, you can install the tail lights yourself. However, if you’re not confident in your abilities, you can seek the help of a professional mechanic.

3. Do I need any special tools to install the tail lights?

You will need a screwdriver, wire stripper, tape measure, soldering iron, and heat shrink to install the tail lights.

4. How long does it take to install the tail lights?

The installation process usually takes around 45 minutes to an hour on average.

5. What should I do if I experience any issues while installing the tail lights?

If you experience any issues while installing the tail lights, do not hesitate to seek the help of a professional mechanic.

With the knowledge and understanding of the E39 tail light wiring diagram, you can now install tail lights on your E39 with confidence. Follow these steps carefully and enjoy a safe and comfortable driving experience with your BMW E39.