BMW F30 Tail Lights: Complete Guide to Upgrade and Install

F80 M3 & F30 3 Series Sequential OLED GTS Style Taillights (2012 - 2018)

The BMW F30 3 Series has been a favorite for many drivers. One of the most common upgrades people make is changing the tail lights. The stock lights are fine, but aftermarket options give your car a sharper look. Some owners want the GTS style tail lights, while others prefer OLED or CSL style lights. Whatever style you pick, the process of installation is similar.

In this guide, we’ll walk you through everything you need to know about BMW F30 tail lights. We’ll cover the different types available, how to choose the right set, and step-by-step instructions for installation. You’ll also find answers to common questions drivers ask before upgrading.

Why Upgrade BMW F30 Tail Lights?

  • Better visibility at night and in bad weather.

  • A modern look that matches newer BMW models.

  • Safer because LED lights react faster than halogen bulbs.

  • More options for customization.

An upgrade isn’t just about looks. It also makes your car stand out while staying safe on the road.

Types of BMW F30 Tail Lights

There are several styles to choose from:

  1. OEM LCI tail lights – stock upgrade from pre-LCI models.

  2. GTS style tail lights – inspired by the M4 GTS, with sleek OLED look.

  3. OLED style tail lights – modern, high-end design.

  4. CSL laser style tail lights – aggressive design with sharp lines.

Each style changes the rear view of the car in its own way. For example, the GTS style tail lights for F80 M3 & F30 3 Series are popular because they fit both pre-LCI and LCI models.

Tools and Materials Needed

Before you start, get these tools:

  • Socket wrench set

  • Trim removal tool

  • Screwdriver (Phillips and flathead)

  • Gloves

  • Microfiber cloth

Materials:

  • New tail lights (check compatibility: F30 pre-LCI or LCI)

  • Electrical tape (optional)

  • Coding tool (only if needed for error removal)

Step-by-Step: How to Install BMW F30 Tail Lights

Installing new BMW F30 tail lights isn’t too hard if you follow each step carefully. Below is a detailed process with safety notes and troubleshooting tips.

Step 1: Prepare Your Car

Before you touch any part of the car, set up your workspace.

  • Park the car on a flat surface.

  • Switch off the ignition.

  • Open the trunk.

  • Disconnect the negative terminal of the battery. This prevents electrical shorts and keeps you safe.

  • Place your tools within reach so you don’t have to stop midway.

Pro tip: Take a quick picture of your current wiring. If you forget where a connector goes, the photo will help you.

Step 2: Remove the Inner Trunk Liner

To access the tail lights, you need to move the liner.

  1. Open the trunk wide.

  2. Find the plastic clips or screws holding the liner in place.

  3. Use a trim removal tool or flathead screwdriver to gently remove them.

  4. Pull the liner back slowly.

Be gentle here. If you yank too hard, you might break the clips or bend the liner. Place the removed clips in a small container so you don’t lose them.


Common mistake: Some people tear the liner when rushing. Take your time; it will make reassembly easier.

Step 3: Disconnect the Wiring Harness

Now you’ll see the wiring that powers the tail lights.

  1. Look for the main connector attached to the back of the tail light.

  2. Press the release tab and pull the connector out. Don’t pull on the wires themselves.

  3. If the connector feels stuck, wiggle it gently while pressing the tab.

Check the wiring for dirt or corrosion. If the pins look dirty, clean them with a dry microfiber cloth.


Safety note: Never spray water or cleaner on the connector. Moisture can cause shorts when you reconnect.


Troubleshooting: If the connector looks damaged or frayed, you may need to repair or replace it before installing new lights.

Step 4: Remove the Old Tail Lights

With the wiring disconnected, you can remove the light unit.

  1. Locate the bolts or nuts securing the light. Usually, it’s 2–3 per side.

  2. Use a socket wrench to remove them.

  3. Hold the light housing with your other hand so it doesn’t drop.

  4. Once the bolts are out, carefully pull the light housing away from the body.

If the light feels stuck, don’t force it. Sometimes the factory seal or weather strip holds it tight. Wiggle gently until it comes loose.


Pro tip: Keep a microfiber cloth handy. When you remove the light, dirt may fall out of the cavity. Wipe it clean before installing the new lights.

Step 5: Install the New Tail Lights

Now it’s time for the fun part.

  1. Take your new BMW F30 tail light out of the box.

  2. Check that it matches the shape of the old one. If it doesn’t align, stop and confirm the product is correct for pre-LCI or LCI models.

  3. Place the light unit in position. Make sure the pins and edges line up with the body panel.

  4. Hold it steady while you hand-tighten the bolts.

  5. Once aligned, use your socket wrench to secure them. Don’t overtighten, that can crack the housing.

Reconnect the wiring harness:

  • Slide the connector back into place until you hear a “click.”

  • Tug gently to make sure it’s locked.

Tip: Some aftermarket sets come with resistors or adapters. Follow the product instructions and attach them before mounting.


Note: If your set has sequential turn signals, test them before fully reassembling.

Step 6: Test the Lights

Reconnect the negative battery terminal. Turn on the car’s ignition and check all functions:

  • Parking lights

  • Brake lights

  • Turn signals

  • Reverse lights

Walk around the car and make sure both sides match in brightness and color.


Troubleshooting:

  • If one side doesn’t light up, check the connector again.

  • If you see error messages on the dashboard, coding may be required.

  • If the lights flicker, resistors or a coding tool will usually fix it.

Step 7: Coding the Tail Lights

Not every tail light needs coding, but some do.

  • OEM LCI lights may require coding if upgrading from pre-LCI.

  • Some aftermarket sets are plug-and-play, while others need adjustment.

If coding is required:

  • Use a tool like BimmerCode or Carly.

  • Select the correct car model (F30).

  • Change the light settings as instructed by the product guide.

If you’re not comfortable coding, ask a shop or BMW specialist. It’s usually a quick process.

Step 8: Reassemble and Clean Up

  • Reattach the trunk liner using the clips or screws you removed.

  • Double-check that no wires are pinched.

  • Clean the new lights with a microfiber cloth to remove fingerprints.

Now step back and look at your car. The rear should look sharper and more modern with the new BMW F30 tail lights installed.

Tips for a Smooth Installation

  • Always wear gloves to protect the lights from fingerprints.

  • Don’t overtighten bolts; it can crack the housing.

  • If you’re not comfortable with coding, ask a shop for help.

  • Keep your old lights as backup.

Common Mistakes to Avoid

  • Not disconnecting the battery first.

  • Pulling on wires instead of connectors.

  • Forgetting to check if the lights are compatible with pre-LCI or LCI.

  • Ignoring water seals, improper installation can lead to condensation inside the lights.

FAQs About BMW F30 Tail Lights

Do I need coding for BMW F30 tail lights?
 Not always. OEM LCI lights may need coding if upgrading from pre-LCI. Many aftermarket sets are plug-and-play.

Will F80 M3 tail lights fit the F30?
 Some aftermarket kits are designed to fit both. Always check product descriptions.

How long does installation take?
 Usually 1–2 hours for DIY.

Are aftermarket lights legal?
 Yes, as long as they meet DOT or E-mark standards.

Can I install the lights myself?
 Yes. If you follow the steps and have basic tools, it’s manageable.

Maintenance and Care Tips

  • Clean lights with microfiber cloth.

  • Avoid harsh chemicals.

  • Check seals regularly to prevent moisture.

  • Replace bulbs if not full LED.

Where to Buy BMW F30 Tail Lights

Trusted sources:

Bay Optiks offers multiple styles including OLED GTS style and CSL laser style lights.

Conclusion

Upgrading to BMW F30 tail lights is one of the most effective changes you can make to your car. It improves safety, adds style, and keeps your BMW looking fresh. With the right tools, you can install them at home in just a couple of hours.

Whether you prefer OEM LCI lights for a clean upgrade or GTS style lights for a bold look, the installation steps are straightforward. Just remember to handle the wiring carefully, check compatibility, and test everything before hitting the road.

If you want to explore high-quality options, check out the full BMW F30 tail lights collection at Bay Optiks.

 

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