BOSCH MED9.1/5 Chiptuning
The BOSCH MED9.1/5 is used in Car vehicles from makes such as AUDI, VOLKSWAGEN, SEAT. 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 →Stage 2 Remap
Advanced software matched to hardware upgrades such as a sport exhaust or induction kit.
View →Pop & Bang
Software that creates exhaust crackle on lift-off.
View →Speed Limiter (Vmax) Removal
Removing the factory top-speed limiter from the software.
View →Decat / Catalyst Delete
Software deactivation of catalyst monitoring and related codes.
View →Stage 3 Remap
Bespoke project software for major hardware changes such as a hybrid turbo.
View →DTC / Fault Code Removal
Switching off selected diagnostic trouble codes (DTC) in the ECU software.
View →MED9.1/5 chip tuning and remap solutions
The Bosch MED9.1/5 is an engine control unit used in cars from makes such as Audi, Volkswagen and SEAT. Prime Chiptuning always builds MED9.1/5 files from the original read of the vehicle; generic files are not used.
Solutions offered for this ECU family include Stage 1 Remap, Stage 2 Remap, Pop & Bang, Speed Limiter (Vmax) Removal, Decat / Catalyst Delete and Stage 3 Remap. 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 MED9.1/5 remap is done
- The MED9.1/5 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 MED9.1/5
Our service points tune the MED9.1/5 for each vehicle individually, with support after delivery. Workshops with their own tools can order MED9.1/5 files on the ECU Prime file platform.
Are you a tuner or dealer?
Verified Stage 1, DPF, EGR and AdBlue files for the BOSCH MED9.1/5 are available on the EcuPrime file service: upload your original file and compatibility is measured in seconds.
BOSCH MED9.1/5 files on EcuPrime →Notify me when a new BOSCH MED9.1/5 solution is released
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