ECU family · Car
The SIEMENS SID804 ECU is used in car vehicles from brands such as CITROEN, FORD. The EcuPrime library holds verified solution files for this ECU family.
Performance
Typical range; the exact figure depends on the vehicle's hardware and the file. Compatibility is measured at hex level when you upload it.
Operations
Operations on emission systems are offered only for use permitted by local law (e.g. off-road / motorsport / export); responsibility lies with the user.
Operations
Software calibration that optimises the engine's power and torque maps within safe limits. Stage 1 is available for SIEMENS SID804 with a verified solution in the library: upload your original file and the software enables it only if it fits your file. Turbo diesel: +20–30% power gain, +25–35% torque gain.
By brand and ECU: FORD SIEMENS SID804 Stage 1 · CITROEN SIEMENS SID804 Stage 1
Software deactivation of exhaust gas recirculation (EGR) valve control and fault codes. EGR Off is available for SIEMENS SID804 with a verified solution in the library: upload your original file and the software enables it only if it fits your file.
By brand and ECU: FORD SIEMENS SID804 EGR Off · CITROEN SIEMENS SID804 EGR Off
Removing selected diagnostic trouble codes (DTC) in the ECU software. DTC Off is available for SIEMENS SID804 with a verified solution in the library: upload your original file and the software enables it only if it fits your file.
By brand and ECU: FORD SIEMENS SID804 DTC Off
Brands
Flow
Upload your original ECU file
The system detects the ECU from the file and enables only genuinely applicable solutions
The solution is verified at hex level and applied
Credit is charged only on successful delivery. The checksum is corrected in a separate tab with the built-in PrimeChecksum.
Missing the operation you need? Leave a request
Brand and ECU are pre-filled; add the missing operation as a note. The most requested ECUs get solutions first. Leave an email and we will let you know when the solution is added.
Upload your file for free — see which operations workExplore
Help
Yes. The EcuPrime library has a verified Stage 1 solution for SIEMENS SID804. When you upload your original file, compatibility is measured at hex level.
Yes. The EcuPrime library has a verified EGR Off solution for SIEMENS SID804. When you upload your original file, compatibility is measured at hex level.
There is currently no verified DPF Off solution for SIEMENS SID804 in the library. You can upload your file and leave a request; we notify you when it is added.
FORD, CITROEN, in car vehicles. The links in the brand table lead to each brand's own list of operations.
A module job costs 1 credit and Stage 1 costs 2 credits; no credit is charged if no result is delivered. Stage 1 + 1 module costs 3 credits; each further module +1 credit.
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