BOSCH MD1CS004 Chiptuning
The BOSCH MD1CS004 is used in Car vehicles from makes such as VOLKSWAGEN, AUDI, SKODA, CUPRA. Our library holds verified solution files for this ECU family.

Available operations
Stage 1 Remap
Software that optimises the engine's power and torque maps within safe limits.
View →Speed Limiter (Vmax) Removal
Removing the factory top-speed limiter from the software.
View →DPF Delete
Software deactivation of the diesel particulate filter (DPF/FAP) functions and fault codes.
View →AdBlue / SCR Delete
Software deactivation of the AdBlue/SCR dosing system and its fault/warning functions.
View →EGR Delete
Software deactivation of the exhaust gas recirculation (EGR) valve control and fault codes.
View →Start & Stop Delete
Permanently disabling the automatic start-stop system.
View →DTC / Fault Code Removal
Switching off selected diagnostic trouble codes (DTC) in the ECU software.
View →MD1CS004 chip tuning and remap solutions
The Bosch MD1CS004 is an engine control unit used in cars from makes such as Volkswagen, Audi, Skoda and Cupra. Prime Chiptuning always builds MD1CS004 files from the original read of the vehicle; generic files are not used.
Solutions offered for this ECU family include Stage 1 Remap, Speed Limiter (Vmax) Removal, DPF Delete, AdBlue / SCR Delete, EGR Delete and Start & Stop Delete. Which ones apply to your vehicle depends on the exact ECU variant, software version and engine; we check this from the read file before the work starts.
How a MD1CS004 remap is done
- The MD1CS004 is read by OBD, bench or boot depending on the variant, and the original software is backed up.
- The original file is modified for the vehicle, engine and requested solution; the checksum is corrected.
- The file is written, fault codes are checked and the vehicle is road tested.
- The original backup is kept, so the vehicle can be returned to factory software at any time.
Why Prime Chiptuning for MD1CS004
Our service points tune the MD1CS004 for each vehicle individually, with support after delivery. Workshops with their own tools can order MD1CS004 files on the ECU Prime file platform.
News about the BOSCH MD1CS004

Autotuner and Flex 2026 New MD1 Protocols: MD1CS003, MD1CP001, MD1CS004
Locked Bosch MD1 ECUs can now be read: which cars Autotuner and Flex 2026 updates unlock, by which method, and which solutions EC…

VW, Skoda and Cupra 2.0 TDI evo Chip Tuning and AdBlue: Bosch MD1CS004
Stage 1, AdBlue, DPF, EGR and combined files for the locked Bosch MD1CS004 on the new 2.0 TDI (EA288 evo).
Are you a tuner or dealer?
Verified Stage 1, DPF, EGR and AdBlue files for the BOSCH MD1CS004 are available on the EcuPrime file service: upload your original file and compatibility is measured in seconds.
BOSCH MD1CS004 files on EcuPrime →Notify me when a new BOSCH MD1CS004 solution is released
We email you when an unlock, a new operation or an on-site solution is added for this ECU family. No advertising; technical announcements only.