Siemens MS42 Flex E85

NuoVolta provides a ready Flex E85 solution for the Siemens MS42, used in BMW vehicles. The NuoVolta client recognises your original file, applies the solution and handles the related DTC codes.

No. 2 most requested solution for this ECU
9solution files for this solution
3solutions on this ECU
2DTC sets
Jun 2025last update

How it works

Applying Flex E85 to a Siemens MS42 file takes three steps.

  1. Read the fileRead the original file from the Siemens MS42 with your tool.
  2. Select the solutionOpen it in the NuoVolta client and select Flex E85.
  3. Write the resultSave the modified file and write it back to the ECU.

About Flex E85

FLEX E85 Flexfuel vehicles are cars that can use both gasoline and E85 fuel. E85 is a type of fuel that consists of a mixture of 85% ethanol and 15% gasoline. Flexfuel vehicles are equipped with special sensors and software that can detect different fuel mixtures and adjust the engine's operating parameters accordingly. Flexfuel E85 vehicles are flexible and environmentally friendly vehicles that can use both…

Read more about Flex E85

Most requested solutions

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

  1. 1 Stage 1
  2. 2 Flex E85
  3. 3 PopBang

Other solutions for the Siemens MS42

Frequently asked questions

Is a ready Flex E85 solution available for the Siemens MS42?

Yes. NuoVolta has a ready Flex E85 solution for the Siemens MS42 with 9 solution files. It is applied with the NuoVolta client.

Which vehicles use the Siemens MS42?

According to the NuoVolta database, the Siemens MS42 is used in BMW vehicles.

Are the related DTC codes handled?

The Flex E85 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 MS42?

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