---
product_id: 388374685
title: "Mellbree 2Pcs Fiber Optic Loop, Female and Male Fiber Optic Bypass Loop Adapter Connector Diagnostic Device Tool Compatible for Benz Audi Mercedes BMW VW Porsche Most Optical System"
brand: "mellbree"
price: "$27"
currency: NZD
in_stock: true
reviews_count: 8
category: "Mellbree"
url: https://www.desertcart.nz/products/388374685-mellbree-2pcs-fiber-optic-loop-female-and-male-fiber-optic
store_origin: NZ
region: New Zealand
---

# Instant network bypass & fault detection Precision fiber optic diagnostic Compatible with top luxury car brands Mellbree 2Pcs Fiber Optic Loop, Female and Male Fiber Optic Bypass Loop Adapter Connector Diagnostic Device Tool Compatible for Benz Audi Mercedes BMW VW Porsche Most Optical System

**Brand:** mellbree
**Price:** $27
**Availability:** ✅ In Stock

## Summary

> 🚀 Diagnose like a pro, drive like a boss!

## Quick Answers

- **What is this?** Mellbree 2Pcs Fiber Optic Loop, Female and Male Fiber Optic Bypass Loop Adapter Connector Diagnostic Device Tool Compatible for Benz Audi Mercedes BMW VW Porsche Most Optical System by mellbree
- **How much does it cost?** $27 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/388374685-mellbree-2pcs-fiber-optic-loop-female-and-male-fiber-optic)

## Best For

- mellbree enthusiasts

## Why This Product

- Trusted mellbree brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual Gender Loop Adapters:** Includes both male and female connectors for versatile use.
- • **Effortless Network Bypass:** Bypass faulty modules instantly to keep your system running smoothly.
- • **Compact & Lightweight Design:** Easy to carry and use anywhere, indoor or outdoor.
- • **Seamless Fiber Optic Diagnostics:** Pinpoint faults in your vehicle’s optical network without disruption.
- • **Universal Luxury Car Compatibility:** Works flawlessly with Audi, BMW, Mercedes, Porsche, VW & more.

## Overview

The Mellbree 2Pcs Fiber Optic Loop is a must-have diagnostic tool designed for luxury vehicles with MOST optical systems. Featuring male and female fiber optic loop adapters, it enables quick fault detection and seamless bypass of faulty in-vehicle devices without interrupting the fiber-optic network. Compatible with Audi, BMW, Mercedes, Porsche, Volkswagen, and more, this compact, lightweight tool empowers professional-grade diagnostics and network maintenance on the go.

## Description

What You Get: Mellbree fiber optic loop , If there is any dissatisfaction with the product, or the parts are missing, please contact us at any time.

Review: Would buy again - Great product works good allowed radio to function without navigation unit
Review: A cheap diagnostic tool and a must have if your Audi or VW uses an optical linked system. - After a week of rain my 06 Audi A6 MMI just quit. Dead. Zippo. Checked all fuses, they were all OK. Held down reset buttons, nothing. Complete PC boards were available on Ebay but the entire center console needed to be yanked out , OY!! I was almost ready to take the car to the dealer but @ $235 an hour though that there must be another answer. Reading posts I discovered that the MMI modules are linked together with optical cables and if one of the modules (there are a few) craps out, nothing will work. So I ordered this, and it came the next day. The first module I worked on was the Satellite Radio module. I easily removed the optical cable from the module, snapped one of these connector cables in it's place, and the other optical cable on the end I removed from the Satellite Radio module. Lo and behold the MMI instantly came back on line and is working fine.

## Features

- Fiber optic bypass loop can perfectly diagnose fiber-optic line problems, remove or add a single in-vehicle device, without affecting the in-vehicle fiber-optic network. It is an excellent tool for diagnosing/bypassing MOST optical system components.
- Male and female fiber optic loop adapter can help you find the fault point quickly and diagnose the problem quickly. It is not only helpful for motherboard problems, but also for indicator problems, whether it is a motherboard transceiver problem or a cable connection problem.
- Widely adapted: Auto diagnostic cable tool can be used to close the optic ring and bypass the useless equipment. Compatible for Brand car Audi, BMW, Mercedes, Porsche, Volkswagen etc. According to the practical application , different models can be connected simultaneously.
- Package Content: 1 X male fiber optic loop adapter + 1 X female fiber optic loop adapter.
- What You Get: Mellbree fiber optic loop , If there is any dissatisfaction with the product, or the parts are missing, please contact us at any time.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09KZWP19M |
| Best Sellers Rank | #12,007 in Automotive ( See Top 100 in Automotive ) #98 in Code Readers & Scan Tools |
| Brand | Mellbree |
| Brand Name | Mellbree |
| Cable Type | Fiber Optic |
| Compatible Devices | Audi, BMW, Mercedes, Porsche, Volkswagen |
| Compatible Phone Models | No Compatible Phone Models |
| Connector Gender | Male-to-Male |
| Connector Type | Optical |
| Customer Package Type | protective packaging |
| Customer Reviews | 4.3 out of 5 stars 563 Reviews |
| Indoor Outdoor Usage | Indoor, Outdoor |
| Item Shape | Round |
| Item Weight | 0.01 Kilograms |
| Manufacturer | Mellbree |
| Model | Mel-fol |
| Model Name | Mel-fol |
| Number of Items | 2 |
| Other Special Features of the Product | Fiber Optic Diagnostic, Network Bypass |
| Outer Material | Other |
| Recommended Uses For Product | automotive fiber-optic network diagnosis and bypass |
| Special Feature | Fiber Optic Diagnostic, Network Bypass |
| Specification Met | CE |
| Unit Count | 2.0 Count |

## Product Details

- **Brand:** Mellbree
- **Connector Type:** Optical
- **Cable Type:** Fiber Optic
- **Compatible Devices:** Audi, BMW, Mercedes, Porsche, Volkswagen
- **Special Feature:** Fiber Optic Diagnostic, Network Bypass

## Images

![Mellbree 2Pcs Fiber Optic Loop, Female and Male Fiber Optic Bypass Loop Adapter Connector Diagnostic Device Tool Compatible for Benz Audi Mercedes BMW VW Porsche Most Optical System - Image 1](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)

## Questions & Answers

**Q: Does work on a BMW 2007 335i?**
A: Yes. Used this on my 09 335xi

**Q: Does this work on a 2009 650i?**
A: I used this link on a 2009 XF Jaguar to bypass the Navigation unit in the system... well made link and arrived ahead of projected time...
John, South Island NewZealand

**Q: Will this work on a 2008 BMW 536xi ?**
A: As long as the system you are working on is fiber optic then yes.  If a wired system then no it won’t.

**Q: Does it work for a 2007 Mercedes ml 320?**
A: No,at all!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Would buy again
*by L***. on November 24, 2025*

Great product works good allowed radio to function without navigation unit

### ⭐⭐⭐⭐⭐ A cheap diagnostic tool and a must have if your Audi or VW uses an optical linked system.
*by P***E on May 13, 2025*

After a week of rain my 06 Audi A6 MMI just quit. Dead. Zippo. Checked all fuses, they were all OK. Held down reset buttons, nothing. Complete PC boards were available on Ebay but the entire center console needed to be yanked out , OY!! I was almost ready to take the car to the dealer but @ $235 an hour though that there must be another answer. Reading posts I discovered that the MMI modules are linked together with optical cables and if one of the modules (there are a few) craps out, nothing will work. So I ordered this, and it came the next day. The first module I worked on was the Satellite Radio module. I easily removed the optical cable from the module, snapped one of these connector cables in it's place, and the other optical cable on the end I removed from the Satellite Radio module. Lo and behold the MMI instantly came back on line and is working fine.

### ⭐⭐⭐⭐⭐ Works as intended
*by C***N on November 26, 2025*

Used to bypass the bad amplifier in my Audi. Now the MMI works like it's supposed to.

## Frequently Bought Together

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-24*