Professional laboratory board-level overhaul service
If your component exhibits any of the following issues, this specific laboratory repair will permanently resolve them. We do not just replace components that are currently failed; we re-engineer known wear points site-wide:
Class-100 anti-static environments
Cycling from -20°F to 180°F
End-to-end active network testing
This service provides expert cloning for Siemens/Continental SIM271DE20 and SIM271KE20 ECUs found in select Mercedes-Benz vehicles equipped with the M271 1.8L turbocharged inline-four engine. We transfer all data from your original ECU to a replacement unit, ensuring full compatibility with your vehicle’s engine and immobilizer systems. This avoids the need for complex programming or dealership coding.
What We Do
Clone all vehicle-specific ECU data, including:
VIN
Immobilizer/anti-theft data
Configuration and coding specific to your vehicle
Deliver a plug-and-play replacement ECU, ready for immediate installation.
Supported Vehicles (U.S. Market)
Mercedes-Benz C-Class (W204) – C250 (2012–2014)
Mercedes-Benz SLK-Class (R172) – SLK250 (2012–2015)
How It Works
Ship both your original ECU and a replacement unit to us.
We clone all data from the original ECU to the replacement.
Both ECUs are returned, with the replacement ready for immediate installation.
Important Notes
Both ECUs must be from the same ECU family (SIM271DE20 or SIM271KE20).
Replacement ECU must match the original unit's part number.
We recommend verifying the replacement ECU’s condition before shipping.
Texas-Based Service With Nationwide Mail-In Support
We are located in San Marcos, TX, serving customers throughout Austin, San Antonio, Houston, Dallas–Fort Worth, and across Central Texas. Nationwide mail-in service is available.
Shipping Instructions
Package both original and replacement ECUs securely in a padded box. Include a printed note with:
First and last name
Contact phone number
Return shipping address
Vehicle year, model, and VIN
Ship the package to:
ClusterFix Texas
16044 N Hwy 123
San Marcos, TX 78666
After shipping, send tracking information to info@clusterfixtexas.com or text (512) 792-1717.
What to Expect After Cloning
Once your replacement ECU is returned, it will be recognized by your Mercedes-Benz as the original unit. All engine and immobilizer functions will operate normally, with no additional programming required.
FAQ
Do the original and replacement ECU part numbers need to match?
Yes, identical part numbers are required for successful cloning.
Will my Mercedes function normally after cloning?
Yes, the cloned ECU restores all engine and immobilizer functions plug-and-play.
Do you supply replacement ECUs?
No, customers must provide a compatible replacement unit.
Do you service customers outside Texas?
Yes. Nationwide mail-in service is available.
What if I’m unsure about compatibility?
Contact us with your ECU part number before shipping for verification.
*Note: Even if your specific OEM part number is not listed above, our laboratory engineers can rebuild all variations of this electronic component family.
Laboratory Certification Standard
All our automotive electronic laboratory rebuilds come with an industry-leading 90 Days Warranty on the components replaced.
Average Lab Queue Speeds
3 Days standard bench time. Priority express options are selectable at booking checkout.
Secure Logistics Coverage
We provide an inbound shipping label and a secure double-walled packing box as a service addition, or you can self-ship using standard postal codes.
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