Engine coolant-temperature calibration correction — Cars / Vans
Applies a supported thermostat or coolant-temperature strategy correction after the cooling system has been diagnosed. This product is prepared for Cars / Vans and is processed against the exact uploaded ECU or TCU file.
What the service includes
- exact software-variant verification
- targeted supported calibration correction
- integrity and diagnostic validation
How the order is processed
- Upload the source file. Use the product form and provide complete vehicle, engine, ECU, read-tool and read-method information.
- Identification and verification. We check file integrity, ECU family, available SW/HW identifiers and compatibility with the requested service.
- File-specific work. Only the agreed function is processed. An ambiguous or unsupported variant is held for manual review instead of receiving an unrelated generic solution.
- Delivery and validation. The completed file is returned through the order workflow. Program it with suitable equipment, clear obsolete faults and validate the vehicle with diagnostics and logs.
Required information
Provide ECU identification, DTCs, measured temperatures and confirmation of thermostat, sensor, wiring and cooling-system condition.
Technical requirement: Always retain a verified backup of the original read. A partial, corrupt or incorrectly identified file may require a new read before processing.
Responsible use and limits: Calibration cannot repair overheating, leaks, sensors or mechanical thermostat faults. The purchaser is responsible for the vehicle condition, lawful use, correct programming procedure and final validation.
Turnaround: Standard processing is normally completed within the service hours shown on the website when the file and technical information are complete. Unusual software variants or manual calibration may require additional confirmation.
Registered workshop? Use the full TUN-FILES File Service portal for account history, credits, support and direct file delivery.
