Siemens Simtec Thermostat Calibration

NuoVolta provides a ready Thermostat Calibration solution for the Siemens Simtec, used in Opel vehicles. The NuoVolta client recognises your original file, applies the solution and handles the related DTC codes.

2solution files for this solution
4solutions on this ECU
18DTC sets
Sep 2025last update

How it works

Applying Thermostat Calibration to a Siemens Simtec file takes three steps.

  1. Read the fileRead the original file from the Siemens Simtec with your tool.
  2. Select the solutionOpen it in the NuoVolta client and select Thermostat Calibration.
  3. Write the resultSave the modified file and write it back to the ECU.

About Thermostat Calibration

THERMOSTAT CALIBRATION Many modern engines use an electronically controlled (map-controlled) thermostat. Instead of opening only at a fixed temperature, the thermostat is controlled by the engine control unit (ECU), which sets the target coolant temperature according to engine load, speed and ambient conditions. Typically, the engine runs warmer at part load for efficiency and cooler at high load to protect the…

Read more about Thermostat Calibration

Most requested solutions

Ranking of the solutions NuoVolta users apply most often to this ECU.

  1. 1 Lambda / O2 Removal
  2. 2 Catalyst Removal
  3. 3 Stage 1
  4. 4 Thermostat Calibration

Other solutions for the Siemens Simtec

Frequently asked questions

Is a ready Thermostat Calibration solution available for the Siemens Simtec?

Yes. NuoVolta has a ready Thermostat Calibration solution for the Siemens Simtec with 2 solution files. It is applied with the NuoVolta client.

Which vehicles use the Siemens Simtec?

According to the NuoVolta database, the Siemens Simtec is used in Opel vehicles.

Are the related DTC codes handled?

The Thermostat Calibration solution is applied together with the related DTC handling. If other codes remain, the DTC removal feature can disable them.

Diagnose and repair real faults first. Removing or disabling emission systems is only permitted where allowed by law, for example for off-road or motorsport use.

Ready to work with the Siemens Simtec?

Get the NuoVolta client and apply ready solutions to your ECU files.