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Body Control Module
This photo shows the same type of part you'll receive. Since each used part has its own wear and scratches, yours may look slightly different. Check the product notes for details about the condition of this specific part.

2003 - 2008 BMW Z4 HID Headlight Ballast (OEM)

Only 1 left in stock
$69.95

ℹ️ Product Notes

This is a used part. This control module helps run your Xenon lights. This is the HID (High-Intensity Discharge) box only.

Match the part number on your old unit to ensure a perfect fit. This ballast powers the Xenon bulb and is typically mounted on the bottom of the headlight assembly.

Original Part #(s): 0028202426, 0038206026, 12790592, 4E0907476, 5DV00829000, 63126907488, C2S15079, YWC500030
Condition: Excellent (A)
Like new, minimal to no wear
51,255 miles
Odometer reading when part was removed
SKU #
755329-09306-195

Why Buy Used OEM Parts?

✓ Quality-Verified: Every used OEM part we sell has been professionally inspected and tested to ensure it meets our quality standards. While it may show some cosmetic wear from previous use, it's fully functional and ready to install.

✓ Original Equipment: This is a genuine OEM (Original Equipment Manufacturer) part - the exact same part that came with your vehicle from the factory. It's designed specifically for your make and model, ensuring perfect fitment and performance.

✓ Works Like New: Despite some visual wear, this part will perform just as well as a brand new one. The internal components and functionality are intact, giving you the same reliability you'd expect from OEM quality.

✓ Significant Savings: Save 50-80% compared to buying new! Used OEM parts offer exceptional value - you get factory quality at a fraction of the cost. It's the smart choice for budget-conscious vehicle owners who won't compromise on quality.

✓ Risk-Free Purchase: We stand behind our used parts with a generous 6-month warranty, 30-day returns, and 100% money-back guarantee. If it doesn't work out for any reason, simply return it for a full refund. You have nothing to lose!

🛡️ 30-Day Returns + 6-Month Warranty - Buy with Confidence!

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Vehicle Fitment Guide

This part fits the following vehicles:

BMW
Z4 2003-2008 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
2.5i Convertible 2003 - 2006 L6 2.5L RWD | Automatic & Manual
3.0i Convertible 2003 - 2006 L6 3.0L RWD | Automatic & Manual
Coupe 3.0si Coupe 2006 - 2008 L6 3.0L RWD | Automatic & Manual
M Coupe Coupe 2006 - 2008 L6 3.2L RWD | Manual
M Roadster Convertible 2006 - 2008 L6 3.2L RWD | Manual
Roadster 3.0i Convertible 2006 - 2008 L6 3.0L RWD | Automatic & Manual
Roadster 3.0si Convertible 2006 - 2008 L6 3.0L RWD | Automatic & Manual
2.5si Convertible 2007 - 2008 L6 2.5L RWD | Automatic & Manual
3.0si Convertible 2007 - 2008 L6 3.0L RWD | Automatic & Manual
2004 - 2005

⚠️ Important: Please verify your vehicle's year, make, model, and specifications before ordering. If you're unsure about fitment, contact our customer service team for assistance.

Policies

Shipping & Handling

  • Standard shipping: 3-7 business days via UPS Ground
  • Parts are carefully packaged to prevent damage during transit

Returns (30 Days)

We accept returns within 30 days of delivery for this part.

  • Defective parts: We will replace the part or issue a refund at our discretion
  • Electronic parts: Must be returned with the sealed inspection bag unopened. The clear bag allows full visual inspection before opening. Once opened, electronic parts can only be exchanged for a replacement if defective — no refunds
  • Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
  • Return shipping: We cover return shipping as part of our 100% money-back guarantee
  • Parts must be returned in original packaging and unmodified condition
  • Poorly packaged returns that arrive damaged will not be credited

6-Month Warranty

All used parts include a 6-month warranty from the date of purchase.

  • If your part fails within 6 months, we will send a replacement
  • Refunds are only issued if we cannot provide a suitable replacement
  • Warranty covers defects — not installation errors, misuse, or damage after installation

Note: Warranty is for replacement, not refund. A part failing on day 80? We'll replace it. But the return window for refunds is 30 days.

Damaged in Shipping?

If your part arrives damaged:

  • Stop immediately — do not install the part
  • Keep all original packaging and boxes
  • Take clear photos of the damage and packaging
  • Contact us within 48 hours of delivery

We will handle the carrier claim. You are not responsible for shipping damage — we just need your help documenting it.

Order Cancellation

Orders can be cancelled before shipment for a full refund. Once shipped, cancellations follow our return policy.

Symptoms & Diagnosis

Warning Signs of a Failing HID Headlight Ballast

  • Headlight flickering or blinking
  • Headlight turning on and off intermittently
  • Headlight completely failing to illuminate
  • Headlight color changing (often to pink or purple)
  • Error message on the dashboard related to headlight malfunction

How to Test the HID Headlight Ballast

If you're experiencing headlight problems, it's important to determine if the ballast is the culprit. Here's how:

  1. Visual Inspection: Check the ballast for any signs of physical damage, such as cracks, corrosion, or burn marks.
  2. Bulb Swap: If only one headlight is malfunctioning, try swapping the bulb with the working headlight. If the problem follows the bulb, the bulb is the issue. If the problem stays on the same side, the ballast is likely the problem.
  3. Voltage Test: Use a multimeter to check the voltage going to the ballast. If there's no voltage, the problem could be a fuse, wiring, or the headlight switch. If there is voltage, but the headlight still doesn't work, the ballast is likely faulty.
  4. Professional Diagnosis: If you're unsure, take your vehicle to a qualified mechanic for a professional diagnosis.

Common Failure Causes

  • Age: Like any electronic component, HID ballasts have a limited lifespan and can fail over time.
  • Moisture: Water intrusion can damage the ballast's internal components.
  • Overheating: Excessive heat can cause the ballast to fail prematurely.
  • Voltage Fluctuations: Unstable voltage from the vehicle's electrical system can damage the ballast.
  • Physical Damage: Impacts or vibrations can damage the ballast.

Buyer's Checklist

What to Look For When Buying

  • Compatibility: Make sure the ballast is designed to work with your vehicle's make, model, and year.
  • OEM Quality: Look for a ballast that meets or exceeds OEM specifications.
  • Warranty: A warranty provides peace of mind in case the ballast fails prematurely.
  • Seller Reputation: Buy from a reputable seller with positive reviews.

Quality Indicators

  • Brand Reputation: Well-known brands often have a reputation for quality.
  • Component Quality: Look for ballasts that use high-quality components.
  • Testing and Inspection: Ensure the ballast has been thoroughly tested and inspected.

What's Typically Included

  • The HID headlight ballast unit itself.
  • Sometimes mounting hardware (screws, brackets).
  • Instructions may or may not be included.

Installation Overview

Difficulty Level and Estimated Time

  • Difficulty: Moderate
  • Estimated Time: 30 minutes to 1 hour per side

Special Tools Needed

  • Socket set
  • Screwdrivers (Phillips and flathead)
  • Multimeter (optional, for testing)
  • Gloves

Critical Steps and Tips

  1. Disconnect the Battery: Disconnect the negative terminal of the battery to prevent electrical shock.
  2. Locate the Ballast: The ballast is typically located behind the headlight assembly.
  3. Remove the Old Ballast: Disconnect the wiring harness and remove the screws or clips holding the ballast in place.
  4. Install the New Ballast: Connect the wiring harness and secure the ballast with the screws or clips.
  5. Reconnect the Battery: Reconnect the negative terminal of the battery.
  6. Test the Headlights: Turn on the headlights to ensure they are working properly.

DIY or Professional Installation?

  • DIY: If you have experience working on cars and are comfortable with basic electrical repairs, you can likely install the ballast yourself.
  • Professional Installation: If you're not comfortable working on cars or are unsure about the installation process, it's best to have a professional install the ballast.

Buying Options

When replacing your HID headlight ballast, you have several options:

| Option | Description the output.

Symptoms & Diagnosis

Warning Signs of a Failing HID Headlight Ballast

  • Headlight flickers or blinks a lot.
  • Headlight turns on and off by itself.
  • Headlight won't turn on at all.
  • Headlight looks pink or purple instead of white.
  • Your car shows a warning light about the headlights.

How to Test the HID Headlight Ballast

Is it the ballast or something else? Here's how to check:

  1. Look Closely: Check the ballast for cracks, rust, or burn marks.
  2. Swap Bulbs: If only one headlight is bad, switch the bulbs from one side to the other. If the bad light moves with the bulb, the bulb is the problem. If the bad light stays on the same side, the ballast is likely the problem.
  3. Check the Power: Use a tool called a multimeter to see if the ballast is getting power. If it's not getting power, the problem could be a fuse or a wire.
  4. Ask a Pro: If you're not sure, a mechanic can help you figure it out.

Common Failure Causes

  • Old Age: Parts wear out over time.
  • Water Damage: Water can ruin the ballast.
  • Too Hot: The ballast can get too hot and break.
  • Bad Power: Problems with your car's power can hurt the ballast.
  • Bumps and Shakes: Bumps and shakes can damage the ballast.

Buyer's Checklist

What to Look For When Buying

  • Right Fit: Make sure it fits your car's year, make, and model.
  • Good Quality: Look for a ballast that's made well.
  • Warranty: A warranty protects you if the part breaks soon after you buy it.
  • Good Seller: Buy from a seller that people trust.

Quality Indicators

  • Name Brand: Well-known brands are often better.
  • Good Parts: Look for ballasts made with good parts inside.
  • Tested: Make sure the ballast has been tested to work right.

What's Typically Included

  • The ballast itself.
  • Sometimes screws or brackets to hold it in place.
  • Maybe instructions, but not always.

Installation Overview

Difficulty Level and Estimated Time

  • Difficulty: Medium
  • Time: About 30 minutes to 1 hour per headlight

Special Tools Needed

  • Socket set
  • Screwdrivers (both kinds)
  • Multimeter (optional)
  • Gloves

Critical Steps and Tips

  1. Unplug the Battery: Unplug the negative (-) cable from your car's battery to be safe.
  2. Find the Ballast: It's usually behind the headlight.
  3. Take Out the Old One: Unplug the wires and remove the screws holding the old ballast.
  4. Put In the New One: Plug in the wires and screw in the new ballast.
  5. Plug In the Battery: Plug the negative (-) cable back onto the battery.
  6. Test the Lights: Turn on the headlights to make sure they work.

DIY or Professional Installation?

  • DIY: If you know a little about cars, you can probably do it yourself.
  • Professional: If you're not sure, let a mechanic do it.

Buying Options

Here's a look at your choices when buying a new HID headlight ballast:

| Feature | Used OEM

Part Specifications

OEM Part Numbers:

  • Audi: 4E0907476
  • BMW: 63126907488
  • Hella: 5DV00829000
  • Jaguar: C2S15079
  • Land Rover: YWC500030
  • Mercedes-Benz: 0028202426, 0038206026
  • Saab: 12790592

Fits Years: 2003 2004 2005 2006 2007 2008

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