VW Audi Bosch MED9.1 ECU Clone Programming Service | FSI TFSI

VW Audi Bosch MED9.1 ECU Clone Programming Service | FSI TFSI

This is a mail-in ECU cloning service for supported Volkswagen and Audi vehicles equipped with the Bosch MED9.1 engine control module.

We transfer the necessary vehicle-specific data from your original ECU into a compatible replacement ECU that you provide. The replacement retains the required original vehicle and immobilizer information, allowing it to replace the original without normal replacement ECU immobilizer adaptation.

This service is ideal when your original MED9.1 ECU is faulty but still communicates and can be successfully read.

When to Use This Service:

• Your original MED9.1 ECU is faulty but still communicates and can be read.
• You have a compatible used replacement ECU.
• You need the original immobilizer and vehicle-specific data transferred to the replacement.
• You want to retain the vehicle's normal immobilizer operation.

What This Service Does:

• Reads the necessary data from your original MED9.1 ECU.
• Transfers the required vehicle-specific and immobilizer data into your replacement ECU.
• Retains the original vehicle information and ECU configuration.
• Prepares the replacement ECU for installation back into the vehicle.

Supported ECU Type:

• Bosch MED9.1

MED9.1 ECUs are commonly found in select Volkswagen and Audi FSI and TFSI gasoline engine applications.

Common Volkswagen Applications:

• Volkswagen Golf / GTI (Mk5) – 2.0T FSI
• Volkswagen Jetta / GLI (Mk5) – 2.0T FSI
• Volkswagen Passat (B6) – select 2.0T FSI and 3.2L FSI applications
• Volkswagen Eos – 2.0T FSI
• Volkswagen Touareg – select FSI applications

Common Audi Applications:

• Audi A3 (8P) – 2.0T FSI / TFSI
• Audi A4 (B7) – 2.0T FSI / TFSI
• Audi TT (8J) – 2.0T FSI / TFSI
• Audi S3 (8P) – select 2.0T FSI / TFSI applications
• Audi Q7 – select 3.6L FSI applications

Not every engine or model listed above uses MED9.1. Compatibility is determined by the ECU type, hardware, part number, and vehicle application.

Important Requirements:

• YOU MUST SEND BOTH ECUs — ORIGINAL AND REPLACEMENT.
• The original ECU must communicate and be readable for this cloning service.
• The replacement ECU must be compatible with the original.
• We recommend matching the original ECU part number whenever possible.

If you are unsure whether your replacement ECU is compatible, send us clear photos of both ECU labels before purchasing.

Original ECU Does Not Communicate?

This cloning service requires readable data from the original ECU.

If your original ECU has severe water damage, internal failure, or no communication, contact us with your vehicle information and ECU part number before purchasing. Other data-recovery or replacement options may be available depending on the condition of the original ECU.

Why Choose ECU Cloning?

• Transfers the original immobilizer and vehicle-specific information.
• Allows a compatible used ECU to replace the original.
• Retains the vehicle's normal immobilizer operation.
• Avoids normal replacement ECU immobilizer adaptation.
• Ideal for replacing a faulty but still-readable MED9.1 ECU.

Don’t See Your Vehicle or Part Number?

Select Other / Part Number Not Listed or send us your vehicle information and ECU part number for verification. We’re happy to assist!