Variant 1
ECU- Catalog engine
- 5500 525HP
- Engine code
- M157DE55LA
- Controller brand
- BOSCH
- ECU
- MED17.7.3
- Stock power
- 525 HP
- ECU SW
- 2789022500
- ECU HW
- 0261S07802
- SW upgrade
- 1579033600
- Calibration
- 1579033600
MERCEDES · MED17.7.3 ECU · petrol
MERCEDES CLS MED17.7.3 tuning files
Tuning file coverage for the MERCEDES CLS running the MED17.7.3 ECU. The matched variants sit between 408 and 525 HP from the factory. Petrol calibration here is about crisp response and a result that holds up day to day. Each file is tied to the precise software on your car and checked before it goes out.
Available solutions
Solutions that apply to the MED17.7.3 on this petrol platform. The exact set depends on the specific engine and software version.
Engine variants & ECU software
9 distinct variants for the MERCEDES CLS on the MED17.7.3 ECU. Reference the engine and controller software when you upload.
Variant 2
ECU- Catalog engine
- 5500 525HP
- Engine code
- M157DE55LA
- Controller brand
- BOSCH
- ECU
- MED17.7.3
- Stock power
- 525 HP
- ECU SW
- 2789022500
- ECU HW
- 0261S0xxxx
- SW upgrade
- 1579032900
- Calibration
- 1579032900
Variant 3
ECU- Catalog engine
- 4700 408HP
- Engine code
- M278KE55
- Controller brand
- BOSCH
- ECU
- MED17.7.3
- Stock power
- 408 HP
- ECU SW
- 2789023300
- ECU HW
- 0261S06498
- SW upgrade
- 2789039700
- Calibration
- 2789039700
Variant 4
ECU- Catalog engine
- 4700 408HP
- Controller brand
- BOSCH
- ECU
- MED17.7.3
- Stock power
- 408 HP
- ECU SW
- 2789023300
- SW upgrade
- 1579035900
- Calibration
- 1579035900
Variant 5
ECU- Catalog engine
- 4700 408HP
- Controller brand
- BOSCH
- ECU
- MED17.7.3
- Stock power
- 408 HP
- ECU SW
- 2789024100
- SW upgrade
- 2789033801
- Calibration
- 2789033801
Variant 6
ECU- Catalog engine
- 4700 408HP
- Controller brand
- BOSCH
- ECU
- MED17.7.3
- Stock power
- 408 HP
- ECU SW
- 2789023300
- SW upgrade
- 1579035100
- Calibration
- 1579035100
Variant 7
ECU- Catalog engine
- 4700 408HP
- Controller brand
- BOSCH
- ECU
- MED17.7.3
- Stock power
- 408 HP
- ECU SW
- 2789023300
- SW upgrade
- 2789039600
- Calibration
- 2789039600
Variant 8
ECU- Catalog engine
- 4700 408HP
- Engine code
- OM278922
- Controller brand
- BOSCH
- ECU
- MED17.7.3
- Stock power
- 408 HP
- ECU SW
- 2789021600
- ECU HW
- 0261S07802
- SW upgrade
- 2789033600
- Calibration
- 2789033600
Variant 9
ECU- Catalog engine
- 4700 408HP
- Controller brand
- BOSCH
- ECU
- MED17.7.3
- Stock power
- 408 HP
- ECU SW
- 2789021200
- SW upgrade
- 2789033000
- Calibration
- 2789033000
Related vehicles
Other vehicles built on the MED17.7.3 controller or the same engine — handy when a platform spans several models and makes.
Questions, answered.
Which tuning solutions are available for the MERCEDES CLS on the MED17.7.3?
Stage 1, Stage 2, Swirl Flaps Off, Lambda / O2, OPF/GPF Off. The exact set depends on the specific engine and software version.
Do you cover the MED17.7.3 ECU software on this model?
Yes — the MERCEDES CLS on the MED17.7.3 ECU is part of the catalog. Upload your original file and it is matched to the right calibration before any work is done.
How is the file delivered?
Through the TuningBay workflow with operator validation and one safe, sensible result per job. Files we deliver, we stand behind.