VW Passat B7 2.0 TDI 140 CFFB 2014 ECU & Keys Kit 03L907309N 3AA937087A – Used

Description

🚗 COMPLETE IMMOBILISER SOLUTION! VW Passat B7 Keys, ECU, Reader & Barrel Kit 🚗

Facing a lost key, ECU failure, or immobiliser (IMMO) issue? Save hundreds on dealership costs with this COMPLETE USED GENUINE VW KIT. This is the essential plug-and-play solution to get your Passat B7 back on the road without expensive coding or locksmiths. Everything you need is included, fully matching, and ready to install.

👉 THIS COMPREHENSIVE KIT INCLUDES (AS PICTURED)

• 1x Engine Control Unit (ECU): Part Number 03L907309N (Software CFFB, 140hp).
• 1x Ignition Key Reader Coil / Antenna: Part Number 3AA937087A.
• 1x Driver’s Door Lock Barrel (with mechanical key slot).
• 2x Original VW Flip Remote Keys (Fully functional, used condition).

🔑 WHAT THIS SOLVES

• Lost or damaged original keys
• Faulty ECU or immobiliser (IMMO) system
• Synchronisation issues between keys and ECU
• Complete security system replacement

✅ KEY BENEFITS & FEATURES

• GENUINE VW PARTS: All components are original, used Volkswagen parts – ensuring perfect fit and function.
• COMPLETE MATCHING KIT: The ECU, reader, barrel, and keys are from the same vehicle. This is a TRUE IMMO-OFF SOLUTION – install the kit and your car will start.
• PLUG & PLAY INSTALLATION: Mechanically swap the components. No need for expensive diagnostic coding of the immobiliser, saving you significant time and money.
• IMMEDIATE SOLUTION: Avoid weeks of waiting and huge bills from the main dealer.

🚨 VEHICLE COMPATIBILITY – WILL THIS FIT YOUR CAR?

This kit is specifically for the Volkswagen Passat B7 (3C) with the 2.0 TDI 140hp (CFFB engine code), manufactured around 2014.

• ECU Part Number: 03L907309N
• Reader Part Number: 3AA937087A

⚠️ IMPORTANT: This is a used electrical kit. We strongly recommend installation by a professional auto-electrician or mechanic to ensure correct installation and diagnose any other potential underlying issues with your vehicle.

“Will this definitely make my car start?”

Yes, if your issue is related to the supplied components (ECU, immobiliser, keys). This kit replaces the entire immobiliser “triangle” (ECU, Reader, Keys). However, we recommend professional installation to confirm your vehicle’s fault.

“Do the keys lock/unlock the doors remotely?”

Yes, the included keys are original VW remotes. They will need to be mechanically matched to the door barrel (included) and can then be electronically synced to the central locking by a technician.

“I only need one part, not the whole kit.”

This kit is sold as a complete matching set to solve the immobiliser problem. We do not split the components.

• ✔️ FULLY INSPECTED: Every item is thoroughly checked, photographed, and described accurately. The items in the photos are the exact items you will receive.

⚠️ FINAL & CRITICAL NOTICE – PLEASE READ BEFORE ORDERING

• MATCH THE PART NUMBERS & ENGINE CODE (CFFB): This is the single most important step. Check your vehicle’s data sticker or existing ECU/reader.
• CHECK ALL PHOTOS CAREFULLY: These are the actual items. Review them to ensure this kit meets your needs.
• PROFESSIONAL INSTALLATION RECOMMENDED: This is an advanced electrical component. We advise fitting by a qualified technician.

Specifications

• Condition: Used – see photos for the exact item
• Manufacturer Part Number: 03L907309N
• Reference OE/OEM Number: 03L907309N, 3AA937087A, 3AA920870A
• Brand: Bosch
• Type: Ecu Kit