This article was adapted for drivers and tuning professionals in the United States by Viezu USA. Measurements are shown in US units alongside the originals.
Upgrade pack 2.14 for Alientech's KESS3 brings major advances for tuning professionals, especially on Mercedes-Benz vehicles fitted with the Common Powertrain Controller (CPC) module.
What the CPC Module Does
The CPC module is central to Mercedes-Benz vehicles, controlling key functions such as torque, horsepower and speed limits. Its main job is to keep performance optimal and meet safety standards. For tuners, though, the CPC has long been a headache, because its factory restrictions override changes made to the Engine Control Unit (ECU).
The Obstacles the CPC Creates
- Performance caps: the CPC enforces the manufacturer's limits on engine parameters, which can cancel out traditional ECU tuning.
- Lingering fault codes: after a repair, the CPC can hold on to fault codes even once the ECU has been cleared, leaving warning lights on and possibly affecting performance.
What KESS3 Upgrade 2.14 Adds
Upgrade 2.14 gives tuners new ways around those obstacles:
- Direct bench operations: connect straight to Bosch VC1CC001 CPC5 units through the control unit connector for efficient tuning and repair work.
- BOOT mode access: BOOT mode is supported on Delphi CPC units (CPC2.6.1, CPC2.10, CPC2.7, CPC2.4, CPC2.3 and CPC2.20), giving full access for in-depth tuning and repairs.
What It Opens Up for KESS3 Users
With the new functions, KESS3 users can:
- Take performance tuning further: change CPC parameters to lift factory limits, for more horsepower, more torque and higher speed thresholds.
- Manage fault codes efficiently: use the Diagnostic Trouble Code (DTC) feature to find, interpret and clear residual codes from the CPC module so the vehicle performs as it should after a repair.
Working with the expert file writers at Viezu Technologies can sharpen the process further, with precise, custom solutions for your customers.
Uses on Gasoline and Diesel Mercedes Vehicles
- More performance from gasoline models: lifting CPC restrictions can bring big gains on gasoline Mercedes vehicles and a more dynamic drive for your customers.
- Maintenance help for diesel and gasoline vehicles: clearing fault codes that linger after repairs keeps diesel and gas vehicles free of unnecessary warnings and performance problems, improving reliability and customer satisfaction.
ECUs and Modules Supported in Upgrade 2.14
The update covers ECUs and modules including:
- Bosch VC1CC001 CPC5
- Bosch EGC4.0
- Delphi DCM6.24
- Delphi CPC Series (CPC2.6.1, CPC2.10, CPC2.7, CPC2.4, CPC2.3, CPC2.20)
- Denso 275700-1762
KESS3 ACM
- Continental ACM SPC564A70
KESS3 UDM
- Bosch RBA1DGS1
Supported vehicles include:
Mercedes-Benz:
- CLA
- B-Class
- C-Class
- C63
- A-Class
- Actros
- Atego
- Axor
- Citaro
- Econic
- Intouro
Isuzu:
- N-Series
Volvo Truck
- FH
Smart
- Fortwo
Scania
- G-Series G410
- R-Series R410
Freightliner
- Cascadia
Hino
- 500 Series
Upgrade 2.14 is a big step forward, giving professionals what they need to work on a wider range of vehicles. Make use of the new capabilities and you can expand your services, meet more customers' needs and stay competitive in a changing industry.
FAQs
What is the CPC module in Mercedes-Benz vehicles?
The Common Powertrain Controller (CPC) controls critical functions such as torque, horsepower and speed limits to keep performance optimal and the vehicle safe.
How does KESS3 Upgrade 2.14 improve tuning?
It gives direct access to CPC modules, so tuners can change factory-imposed limits and clear residual fault codes, making both performance work and maintenance more efficient.
Can it help clear fault codes that persist after repairs?
Yes. The new DTC feature finds and clears residual fault codes in the CPC module so the vehicle runs without unnecessary warnings after a repair.
Which Mercedes-Benz models can now be tuned?
Models including the Mercedes-Benz Actros, Atego, A-Class, C-Class, Sprinter and Vito are among the vehicles KESS3 Upgrade 2.14 can now reach.
Featured Products
Alientech KESS3 Tuning Tool: the Alientech KESS3 hardware.
KESS3 Protocols – Master and Slave Protocol Activations: choose the extra protocols your business needs for your KESS3.
Talk to Viezu USA
Want to know what Viezu can do for your vehicle or your business? Request a performance upgrade quote, browse viezuusa.com or contact the Viezu USA team.