The file record
Stage 2 / Cat Delete / Tuned / modified · Mercedes E550 ME9.7
Uploaded as Mercedes E550. The current research associates this file with Mercedes-Benz. Review candidate alternatives in the vehicle details.
Candidate means a possible identity that the analysis could not establish confidently. Full findings are available below.
About this file
Stage 2 / Cat Delete / Tuned / modified · Mercedes E550 ME9.7 DTC Delete Etc
Inside the tune
What changed.
Observed calibration changes in this accepted file. Expand an observation for the analysis and any uncertainty.
01Broad ignition timing advance across related surfaces
Observed coordinated advances across numerous load- and engine-speed-based ignition surfaces. Most affected cells increased by 4.5 deg, with some increases from 2.25 to 4.5 deg, while the original gradients and axes were retained.
02Raised load limits and torque-model outputs
Observed the maximum load curve flattened to 99.61%, a separate maximum relative-load curve increased by about 20%, and related high-request torque and load model regions increased while retaining their numerical progression.
03Maximum throttle restriction removed in upper region
Observed five cells in an engine-speed-dependent maximum throttle-opening curve raised from a declining restriction, reaching 50% in stock, to a flat 100%.
04Protection and demand lambda targets revised
Observed coordinated lambda-target changes. Some high-end protection cells decreased by 0.0156, other protection variants increased by 0.0078 to 0.0469, and 45 high-demand cells decreased to 0.891 or 0.875.
05Multiple engine-speed limits raised
Observed several ordinary and indexed engine-speed thresholds raised from 6500 rpm to 6700 rpm, with 5500 rpm entries also raised to 6700 rpm. A special-condition threshold increased from 4000 rpm to 6700 rpm.
06High engine-speed limiter surface flattened
Observed one limiter surface changed from a declining 9000–7500 rpm curve to 9000 rpm throughout. Its decoded temperature axis of 388–403 °C is implausible, so the function attribution is contradicted even though the numerical change is measured.
07Indexed vehicle-speed limits raised to scale ceiling
Observed eight indexed vehicle-speed limits, originally spanning 160–250 km/h, raised uniformly to 625 km/h.
08Two context-limited control changes remain ambiguous
Observed an unidentified percentage scalar increase from 5.00% to 81.79% and 63 cells in an unidentified classification table changed from classes 3, 6, or 11 to zero. Their runtime functions cannot be established from the available definitions.
The software fingerprint
ECU & software identifiers
Hardware & part numbers
- ECU part number
0261209456- ECU part number
A0034467040Candidate- ECU part number
A2739000700Candidate
Software & calibration
- Software version
171108Candidate- Software identifier
39S33243Candidate- Software identifier
8K15090GS0000- Software identifier
K150919D00X1037399989- Bootloader identifier
ERCOSEK V4.1.16 MPC56x
Other references
- Project identifier
Bosch.Common.RamLoader.Me9.0001- Other identifier
20030310NR0000000034Candidate
Vehicle & ECU details
Available vehicle details have been saved. Some details remain unidentified.
Files that belong together
No related files are publicly available.
Read information & file integrity
- Revision
- Contribution v1
- Original filename
- WinOLS (Mercedes_Benz_ME9.7_EXTERNAL-FLASH _2026_08_06_15_17_30---Stage 2_Cat off_cks ok.bin
- Read type
- full
- Read method
- boot
- Read tool
- KESS3
- Published
- Sep 18, 2026
- Updated
- Sep 18, 2026
- SHA-256
4d0b4eb3c28efb97d7e846a23fd8fea387b86c5cc2967ed887594ee010f1762f
Compare the SHA-256 with the downloaded file to confirm its bytes match this version.
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