DCM3.5 CRD3X ECU: Professional Chip Tuning File Service for Mercedes-Benz 2.2L-3.0L CDI Diesel Engines
Bosch's DCM3.5 CRD3X ECU is the engine control unit used in Mercedes-Benz vehicles with 2.2L (OM651) and 3.0L (OM642) CDI diesel engines. Used in luxury sedan, SUV, and light commercial models, this ECU manages the performance of Mercedes's powerful diesel engines.
As OnlineChipTuning, we offer custom file services prepared from scratch by our engineers for your Mercedes-Benz vehicles. By analyzing the complex Common Rail injection, turbo boost, and torque control maps of the DCM3.5 CRD3X ECU, we ensure you get maximum power and efficiency within the engine's safe limits.
This page details the technical capacity of the DCM3.5 CRD3X ECU, supported models, and the Stage 1 and Stage 2 advantages you'll gain by submitting files through OnlineChipTuning.com.
DCM3.5 CRD3X ECU Technical Specifications and Potential
The DCM3.5 CRD3X is an advanced engine control unit produced by Bosch, used especially in Mercedes-Benz's luxury and premium models. This ECU manages 2.2L 4-cylinder (OM651) and 3.0L V6 (OM642) CDI diesel engines. It is used in Mercedes E-Class, C-Class, S-Class, G-Class, GLK, CLA, CLS, GLA, and Sprinter/Vito commercial vehicles. CDI (Common Rail Direct Injection) technology provides high power and efficiency. The original file you upload to our platform is processed with professional software like WinOLS and ECM Titanium to reveal this ECU's hidden potential.
Main optimizations we offer on this ECU:
- 2.2L OM651 and 3.0L OM642 diesel engine optimization
- Optimization of Common Rail injection pressure and timing
- Safe increase of turbo boost pressure
- V6 high torque capacity optimization
- Premium luxury sedan/SUV comfort balance
- Light commercial load towing capacity increase
- Mercedes quality character preservation
- 4MATIC AWD power distribution optimization
Which Models Feature DCM3.5 CRD3X?
This ECU is common especially in Mercedes-Benz luxury and premium models:
Supported Vehicles
- Mercedes E-Class W212 2.2L CDI OM651
- Mercedes C-Class W204 2.2L CDI OM651
- Mercedes S-Class W222 3.0L CDI OM642
- Mercedes G-Class W463 3.0L CDI OM642
- Mercedes GLK-Class X204 2.2L CDI OM651
- Mercedes CLA-Class C117 2.2L CDI OM651
- Mercedes CLS-Class C218 2.2L CDI OM651
- Mercedes GLA-Class X156 2.2L CDI OM651
- Mercedes Sprinter 906 2.2L CDI OM651
- Mercedes Vito W639 2.2L CDI OM651
In these vehicles, the DCM3.5 CRD3X can offer remarkable power increases with software, especially when combined with DPF and EGR system removal. 2.2L OM651 engines +40/60 HP, 3.0L OM642 engines +60/90 HP increases are possible.
Why Customized Chip Tuning?
Factory software is left conservative considering emission standards and Mercedes's luxury comfort priority. OnlineChipTuning shapes the file you read from your vehicle according to your requests.
Advantages of our customized service:
- Optimizes flagship luxury sedan performance in S-Class.
- Increases legendary off-road power in G-Class.
- Improves business sedan dynamics in E-Class.
- Strengthens light commercial load towing capacity in Sprinter.
- Unlocks high torque potential of OM651 and OM642 engines.
- Balances fuel consumption through more efficient combustion.
- Preserves Mercedes German quality character.
DCM3.5 CRD3X Stage 1 and Stage 2 Differences
Power achieved only through software without any part replacement on the vehicle. Emission systems remain in original condition. Safe performance increase is targeted without shortening engine life.
- Safe & Stable Power/Torque Increase (+40-70 HP)
- CDI Turbo System Optimization
- Sharper Throttle Response
- Mercedes Premium Quality Protected
Specific to vehicles with modifications such as DPF Delete, EGR Off, and/or performance exhaust system. Maximum torque is unlocked by freeing the engine from all emission restrictions.
- DPF / FAP Completely Off
- EGR Valve Deleted
- Maximum Torque and Horsepower (+90-120 HP)
- Mercedes AMG High Performance
Special Solutions Offered with OnlineChipTuning
Since DCM3.5 CRD3X ECU covers Mercedes vehicles, we offer all special solutions:
- DPF / FAP OFF: Complete shutdown of particulate filter system.
- EGR OFF: Disabling the exhaust gas recirculation valve.
- AdBlue OFF: Disabling AdBlue/SCR system.
- VMAX OFF: Removal of factory speed limiter.
- Lambda / O2 Delete: Turning off the check engine light.
- MAF Sensor Delete: Cancellation of mass air flow sensor errors.
- OM651 Power: 2.2L CDI 4-cylinder optimization.
- OM642 V6: 3.0L CDI V6 high torque optimization.
- 4MATIC Balance: Mercedes 4MATIC AWD power distribution.
- AMG Line: Mercedes AMG sporty package settings.
Custom File Preparation Process for Your Vehicle
The process is shaped according to your Mercedes premium needs. Our engineers identify the engine code, consider the vehicle type (sedan, SUV, commercial), and send the file back to you.
Why Us?
- 24/7 File Service: Fast turnaround time (average 2-4 hours).
- Mercedes Expertise: Mercedes-Benz special experience.
- CDI Knowledge: Mercedes CDI engine family knowledge.
- Bosch DCM Experience: Bosch DCM3.5 CRD3X ECU specialization.
- OM651/OM642 Focus: OM651 and OM642 engine expertise.
- German Quality: German engineering standard knowledge.
- Commercial Balance: Sprinter/Vito commercial optimization experience.
- Luxury Focus: S-Class/G-Class luxury segment experience.
Your Professional Tuning Solution Partner
You're in the right place to reveal the true potential of your Mercedes's CDI diesel engine. With our team specialized in the DCM3.5 CRD3X ECU, we offer the most suitable, customized software solution for your vehicle.
