Our EDC16 Diesel Immobilizer OFF service is designed for Volkswagen diesel vehicles equipped with Bosch EDC16 ECUs. This service disables the immobilizer system inside the ECU, allowing your engine to run without immobilizer interference. It is ideal for vehicles that start and then shut down due to immobilizer faults, or when installing a used or replacement ECU.
Important: This service is only effective if the vehicle starts and then shuts down due to an immobilizer fault. Vehicles that do not start at all require ECU repair or cloning. After IMMO OFF, the immobilizer warning light may remain on. Clear any OBD codes before or after service for optimal function.
Supported Volkswagen Diesel Models
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Jetta (1.9 TDI): 2004–2006
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Passat (2.0 TDI): 2004–2006
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Golf (1.9 TDI): 2004–2006
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Touareg (V10 TDI): 2004–2006
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Eos (2.0 TDI): 2006
Don’t see your vehicle listed? Contact us with your ECU part number for verification.
How the Service Works
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Ship your Bosch EDC16 diesel ECU to us.
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We disable the immobilizer system within the ECU.
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Your ECU is returned ready to run, bypassing the immobilizer.
Important Notes
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Only for vehicles starting and shutting down due to immobilizer faults.
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Not suitable for vehicles that do not crank or start at all.
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The immobilizer warning light may remain on after service.
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Clear any OBD codes before or after IMMO OFF to ensure proper function.
Texas-Based Service – Nationwide Mail-In
Based in San Marcos, TX, serving Austin, San Antonio, Houston, Dallas–Fort Worth, and all of Texas. Nationwide mail-in service is available for Volkswagen EDC16 diesel ECU programming.
Shipping Instructions
Securely package your ECU and include a note with:
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Full name
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Return shipping address
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Phone number or email
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Vehicle year, model, engine
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ECU part number (if available)
Ship to:
ClusterFix Texas
16044 N Hwy 123
San Marcos, TX 78666
After shipping, send tracking details to info@clusterfixtexas.com or text (512) 792‑1717.
FAQ
What does IMMO OFF do?
Disables the factory immobilizer inside the Bosch EDC16 diesel ECU, allowing the engine to run without key authorization.
Will my car still start with my existing keys?
Yes. The engine will start normally, but the immobilizer system is bypassed.
Will the immobilizer light stay on?
Yes, depending on the ECU and fault, this is normal after IMMO OFF.
Can this fix a car that doesn’t crank?
No. Vehicles that do not start at all require ECU repair or cloning, not IMMO OFF.
Is this legal for road use?
IMMO OFF is typically intended for off-road, export, or diagnostic purposes. Customers are responsible for compliance with state and local laws.
Do you serve customers outside Texas?
Yes. Nationwide mail-in service is available.