BMW B47 and B57 Chip Tuning and AdBlue Solution: Bosch MD1CS001 and MD1CP002
BMW’s new diesels, the four-cylinder B47 and six-cylinder B57, use locked Bosch MD1 ECUs: the MD1CS001 on the B47 and the MD1CP002 on the B57. Solutions for both are available at ECU Prime.
Which ECU, which operation?
- MD1CS001 (B47): Stage 1, AdBlue / SCR, DPF, EGR, flaps, lambda, TVA, speed limit and combined files.
- MD1CP002 (B57): Stage 1, Stage 2, AdBlue / SCR, DPF, EGR, speed limit and combined files.
Which cars?
BMW 1 Series, 3 Series, 5 Series, X1, X3, X5 diesels. Confirm from the label.
How is it read and written?
The MD1 family ships locked; reading needs the ECU to be unlocked with the right method. Autotuner (June 2025) reads the MD1CS001 and MD1CP002 over OBD, some units needing a bench unlock first; units built after 06/2020 are not supported that way. Magicmotorsport Flex 8.0 / 8.1 unlock them via boot and read on the bench. Workshops can upload files read with these tools to the ECU Prime file service.
The ECU type depends on model year and engine. The exact type is confirmed from the ECU label or by reading it with a diagnostic tool; send a photo of the label on WhatsApp and we will tell you which file applies.
Common faults
- AdBlue warning and “engine will not start in X km” countdown
- NOx sensor and AdBlue pump / heater failure
- DPF loading and endless regeneration on short trips
- Sooted EGR valve and loss of pulling power
How it works
- Reading: upload the original file read with your tool, or visit one of our locations.
- Calibration: the file is prepared for the exact engine and ECU software version, checksum corrected; the original is archived.
- Application and check: fault scan and run / road test after writing.
Workshops get the same solutions through the ECU Prime file service.
Emission-related software is offered only for uses permitted by applicable law (off-road / closed-site use, racing, export, diagnostics); road use and inspection compliance are the owner’s responsibility.