BMW 8357739 Convertible Third Brake Light Wire Connector 328

( Manufacturer Part Number: 8357739 ), ( Part Type: Wire Brake Light ), ( Placement On Vehicle: Rear ), ( Country Of Origin: Germany )

Review BMW Convertible Third Brake Light Wire Connector 328 fits E36 M3 318 323 325 1994–1999

The **BMW E36 Convertible Third Brake Light Wire Connector (Part Number: 8357739)** is a precision-engineered automotive component designed specifically for the iconic 1994 through 1999 BMW 3-Series (318i, 323i, 325i, and 328i) convertible models. This high-quality connector serves as a critical link in the vehicle s braking system, ensuring that the third brake light often referred to as the rear center brake light functions reliably and in accordance with BMW s stringent engineering standards. Crafted from durable, corrosion-resistant materials, this connector is built to withstand the rigors of daily driving, harsh weather conditions, and the mechanical stresses inherent in a convertible s flexible roof mechanism. The design incorporates a secure, crimp-style terminal that maintains a tight, vibration-resistant connection to the wiring harness, preventing loose contacts that could lead to intermittent brake light operation or complete failure. Whether replacing a worn-out original part or upgrading an aftermarket brake light installation, this connector guarantees a seamless fit and optimal electrical conductivity, preserving both safety and the vehicle s aesthetic integrity. Ideal for restoration projects, performance modifications, or routine maintenance, the **8357739** is a must-have for any E36 convertible owner seeking to maintain their car s reliability and compliance with modern traffic regulations.

### **Pros and Cons of buying a BMW E36 Convertible Third Brake Light Wire Connector (Part #8357739, Fits 94-99 318i/323i/325i/328i/M3)**

1. **Direct Fitment** This part is specifically designed for the E36 convertible models (1994 1999) and the listed engine variants (318i, 323i, 325i, 328i, M3), ensuring compatibility without modification.

2. **Common Failure Point** The third brake light wire connector is a known wear item in E36 convertibles, especially in older or high-mileage examples. Replacing it prevents intermittent brake light failures, which can be a safety hazard.

3. **Easy Installation** The connector is a simple plug-and-play replacement, requiring minimal tools (basic screwdrivers and possibly a wire brush for corrosion). No wiring harness modifications are needed.

4. **Prevents Further Damage** A failing connector can cause internal corrosion or fraying of wires, which may lead to more extensive electrical issues if left unaddressed.

5. **Affordable Solution** Compared to labor costs for professional installation, this is a cost-effective DIY fix, typically priced under $20.

6. **Improves Reliability** Ensures consistent brake light operation, reducing the risk of being pulled over for a non-functioning tail light.

7. **Aftermarket Availability** Widely stocked by BMW specialty suppliers (e.g., MEGA Bosch, Dorman, or eBay sellers), making it easy to source.

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1. **Potential Counterfeit Risk** Some sellers (especially on eBay or Amazon) may offer knockoff or low-quality replacements. Always verify the seller s reputation and check for genuine BMW or reputable aftermarket brands.

2. **Corrosion Inside the Connector** If the original connector was already corroded, the new one may fail prematurely unless the terminals are cleaned thoroughly before installation.

3. **Intermittent Issues After Replacement** In rare cases, the problem may persist if the underlying wire is damaged or if another connector in the circuit is faulty. A systematic check of the entire brake light circuit may be necessary.

4. **Limited Lifespan** While this part is durable, it is still a wear item. In harsh conditions (e.g., salt exposure, moisture), it may need replacement again after several years.

5. **Mismatched Part Numbers** Some sellers may list this part for other E36 models (e.g., coupes or sedans) or incorrect years. Always confirm the exact fitment before purchasing.

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The **BMW E36 Convertible Third Brake Light Wire Connector (8357739)** is a **practical and cost-effective solution** for a common issue in these models. The benefits direct fitment, ease of installation, and improved safety outweigh the minor drawbacks, provided the part is sourced from a trusted supplier. The main risks (counterfeits or persistent issues) can be mitigated by purchasing from a reputable seller and inspecting the wiring thoroughly during installation.

- **Buy from a trusted source** (e.g., MEGA Bosch, Dorman, or a well-reviewed eBay seller) to avoid counterfeit parts.

- **Clean the terminals** of both the old and new connectors with a wire brush and electrical contact cleaner to prevent future corrosion.

- **Test the brake lights** after installation to confirm the issue is resolved. If the problem persists, check for other potential faults in the brake light circuit (e.g., bulb, fuse, or harness damage).

- **Consider a full brake light circuit inspection** if the issue recurs, as it may indicate deeper electrical problems.

**Final Verdict:** This is a **worthwhile replacement** for E36 convertible owners experiencing third brake light failures, offering a simple fix with minimal risk if sourced correctly.

Details:

Because you are buying used parts, no warranty can be given. Will fit all E36 Convertible model's 94-99 318ic 323ic 325ic 328ic M3. It is in good condition with no damage. It is important that if you are happy with your service and product, leave us a 5 Start Positive rating.

This is the OEM BMW rear trunk mount third brake light high stop wire connector harness out of a 1999 M3 convertible. Shipping Info.

part #: 8357739 prices

• $72.00-$99.95

specifications lightinglam:

• for models: E36, M3, 318, 323, 325
• for makes: Bmw
• for years: 1994-1999
• mpn: 8357739
• part type: Wire Brake Light
• placement on vehicle: Rear
• country of origin: Germany

returns lightinglam:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

general lightinglam:

• Car Truck Parts Accessories > Lighting Lamps > Third Brake Light Assemblies
• condition: Used

seller lightinglam:

• rating: 100.0%
• # reviews: 9919
• city: Perkasie, Pennsylvania

offer lightinglam:

• started: April 28, 2026
• options: Ship-to-home
• availability: In Stock
• sold: 0
• quantity: 1

payments lightinglam:

• wallet: Paypal
• credit card: Discover
• other

shipping lightinglam:

• service: USPS First Class
• type: Fixed
• cost: $0.00
• transit: 3-7 Days
• carrier: USPS
• class: Standard

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