DCM3.5 ECU: Professional Chip Tuning File Service for PSA Group, Ford, Jeep, Fiat and Toyota 2.0L/2.2L Diesel Engines

The key to performance in Peugeot, Citroen, Ford, Jeep, Fiat and Toyota's 2.0L HDi/TDCI and 2.2L CRD diesel engines is the DCM3.5 ECU developed by Delphi. This advanced engine control unit precisely manages the common rail injection system, turbo management, and Euro 4/5 emission control systems.

As OnlineChipTuning, instead of standard database files circulating on the internet, we offer custom file services prepared from scratch by our engineers according to the vehicle's current mechanical condition, fuel quality, and installed hardware (DPF Delete, EGR Off, etc.). By analyzing the complex injection, boost, and emission control maps of the DCM3.5 ECU, we ensure you get maximum power and torque within the engine's safe limits.

This page details the technical capacity of the DCM3.5 ECU, supported models, and the Stage 1 and Stage 2 advantages you'll gain by submitting files through OnlineChipTuning.com.

DCM3.5 ECU Technical Specifications and Potential

The DCM3.5 is a Delphi-manufactured versatile engine control unit used in a very wide range of brands, precisely controlling high-pressure diesel injection (1600-1800 bar range). 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:

Performance-oriented adjustment of injection quantity (IQ) and timing (SOI/EOI)
Safe increase of Turbo Boost Pressure
Increase of Rail Pressure (Fuel Pressure) within engine protection limits
Improvement of Throttle Response
Expansion of torque limiter maps
Optimization of PSA Group HDi engines' DW10 family
Optimization of special characteristics of Ford DuraTorq TDCI engines
Preservation of Jeep CRD engines' 4x4 capabilities
Electric-engine integration of Hybrid4 system vehicles

Which Models Feature DCM3.5?

This ECU is common in 2.0L and 2.2L diesel engines of various brands produced especially between 1996-2014. The most processed models in the OnlineChipTuning file panel are:

Jeep (2.2L CRD):

Jeep Compass 2.2 CRD/4x4 136-163PS ENE Diesel
Jeep Patriot 2.2 CRD 4x4 163PS ENE Diesel

PSA Group - Citroen (2.0L HDi):

Citroen C4/Picasso/Grand Picasso 2.0 HDi 150-163PS DW10C/DW10D
Citroen C5 2.0 HDi 140-163PS DW10B/DW10C
Citroen C8 2.0 HDi 136PS DW10TED4
Citroen DS4/DS5 2.0 HDi 136-163PS DW10B/DW10C (DS5 Hybrid4 200PS)
Citroen Jumpy 2.0 HDi 128-163PS DW10B/DW10CD/DW10CTED4

PSA Group - Peugeot (2.0L HDi):

Peugeot 308 2.0 HDi 140-163PS DW10C/DW10D/DW10TED4
Peugeot 3008 2.0 HDi 150-163PS DW10C/DW10D
Peugeot 407 2.0 HDi 163PS DW10C
Peugeot 5008 2.0 HDi/BlueHDi 150-163PS DW10C/DW10FD
Peugeot 508 2.0 HDi 163PS DW10C (508 Hybrid4 200PS)
Peugeot 807 2.0 HDi 163PS DW10C
Peugeot Expert 2.0 HDi/BlueHDi 163-180PS DW10C/DW10FCTDE4
Peugeot RCZ 2.0 HDi 163PS DW10C

Fiat (2.0L HDi):

Fiat Scudo 2.0 HDi 120-136PS DW10B/DW10TED4

Ford (2.0L TDCI Duratorq):

Ford C-Max 2.0 TDCI 116-163PS TYDA/UFDB/TXDB
Ford Focus 2.0 TDCI 116-163PS TYDA/UFDB/TXDB
Ford Galaxy 2.0 TDCI 140-163PS QXW/UFWA/TXWA
Ford Kuga 2.0 TDCI 117-163PS TYMA/UKDA/UFDA/UFMA/TXDA/TXMA
Ford Mondeo 2.0 TDCI 116-163PS Multiple Codes
Ford S-Max 2.0 TDCI 116-163PS TYWA/UFWA/TXWA/QXW

Toyota (2.0L HDi):

Toyota Proace 2.0 HDi 152PS

In these vehicles, the DCM3.5 can offer remarkable power increases with software (116-140 PS engines with +25/40 HP, 150-163 PS engines with +30/50 HP, Jeep 2.2 CRD with +30/50 HP), especially when combined with DPF and EGR system removal. Optimized performance is provided in passenger vehicles, SUVs, MPVs and commercial vehicles.

Remove the Limits of Your HDi/TDCI/CRD Engine. For Engineering Marvel Files; Register Now and Upload Your File

Why Customized Chip Tuning?

Factory software is left very conservative considering Euro 4/5 emission standards, all types of fuel quality, and harsh climate conditions. OnlineChipTuning shapes the file you read from your vehicle according to your requests (for example: "DPF delete", "EGR off", "SUV optimization for Kuga", "Commercial load carrying for Expert").

Advantages of our customized service:

Provides a more elastic power band by reducing turbo lag at low and mid RPMs.
Removes Vmax speed limiters.
Reduces fuel consumption through more efficient combustion and emission system removal.
Perfects the harmony between automatic and manual transmission and engine torque.
Completely eliminates regeneration (DPF Regen) problems.
Optimizes DW10 family characters of PSA Group HDi engines.
Increases performance of Ford DuraTorq TDCI engines.
Maintains 4x4 off-road capabilities of Jeep CRD engines.
Optimizes integration of electric motor and diesel engine in Hybrid4 system vehicles.
Increases load carrying performance in commercial vehicles (Jumpy, Scudo, Expert, Proace).

DCM3.5 Stage 1 and Stage 2 Differences

Customized Stage 1

Power achieved only through software without any part replacement on the vehicle. DPF and EGR remain in original condition. Safe performance increase is targeted without shortening engine life.

Safe & Stable Power/Torque Increase (+25-50 HP)
Turbo System Optimization
Sharper Throttle Response
Emission Systems Active

Customized Stage 2

Specific to vehicles with modifications such as DPF Delete, EGR Off, and/or performance exhaust system. Maximum performance is unlocked by freeing the engine from all emission restrictions.

DPF / FAP Completely Off
EGR Valve Deleted
Maximum Torque and Horsepower (+30-60 HP)
Multi-Brand Optimization

Special Solutions Offered with OnlineChipTuning

Since DCM3.5 ECU is a diesel unit, we offer all emission system deletes and special performance solutions:

DPF / FAP OFF: Complete shutdown of the particulate filter system and elimination of continuous regeneration problems.
EGR OFF: Disabling the exhaust gas recirculation valve to keep the intake system clean.
VMAX OFF: Removal of factory speed limiter.
Lambda / O2 Delete: Turning off the check engine light (CEL) that comes on after DPF removal and blocking error codes.
MAF Sensor Delete: Cancellation of mass air flow sensor errors.
Cold Start Noise Reduction: Reduction of diesel clatter during cold start.
Start/Stop Delete: Permanent deactivation of the system.
Hot Start Fix: Resolution of hot engine start problems.
Smoke Limiter Removal: Expansion of excessive smoke limiter.
PSA HDi DW10 Optimization: Peugeot-Citroen HDi engines' DW10 family optimization.
Ford DuraTorq Tuning: Ford 2.0 TDCI engine optimization.
Jeep CRD 4x4 Calibration: Jeep Compass/Patriot 4x4 off-road optimization.
Hybrid4 System Integration: Electric-diesel integration in DS5 and 508 Hybrid4.
Commercial Vehicle Torque: Load carrying optimization for Jumpy, Scudo, Expert, Proace.
Multi-Brand Character: Custom tuning for different characters of PSA, Ford, Jeep, Fiat, Toyota brands.

Custom File Preparation Process for Your Vehicle

The process works with the "develop file" logic, not the "upload ready file" logic. You read and upload the original file to the system, our engineers verify the Checksum of the file, identify the engine version (DW10B/C/D/TED4/FD/FCTDE4, ENE, TYDA/UFDB/TXDB, etc.), consider the vehicle type (sedan, MPV, SUV, commercial), add the features you want (e.g., Stage 2 + DPF Off + EGR Off + Commercial Vehicle Torque) and send the file back to you.

Why Us?

24/7 File Service: Fast turnaround time so you don't keep your customer waiting (average 2-4 hours).
Technical Support: You can get support for problems during file reading, writing, and vehicle adaptation stages.
Warranty: Our software is prepared within engine protection limits (Component Protection).
Multi-Brand Expertise: We know the special characteristics of PSA Group, Ford, Jeep, Fiat, Toyota vehicles.
PSA HDi Experience: We specialize in Peugeot-Citroen HDi engines' DW10 family.
Ford TDCI Knowledge: We have experience with Ford DuraTorq 2.0 TDCI engines.
Jeep CRD: We know the 4x4 features of Jeep 2.2 CRD engines.
Hybrid4 System: We have experience in electric-diesel integration of PSA Hybrid4 system.
Commercial Vehicle Optimization: We optimize load carrying needs of commercial vehicles like Jumpy, Scudo, Expert, Proace.

Expert Advice: The DCM3.5 is a Delphi-manufactured ECU used in a very wide range of brands but has some sensitive points. PSA Group's DW10 engine family is reliable but there are different versions (DW10B/C/D/TED4/FD/FCTDE4); correct version identification is important. Faulty rail pressure and injection timing can cause injector and high-pressure pump damage. Ford 2.0 TDCI DuraTorq engines have a wide power band (116-163 PS); the EGR system is prone to carbon buildup. Jeep Compass and Patriot 2.2 CRD engines are optimized for 4x4 off-road use; excessive torque increase can lead to differential stress. In Hybrid4 system DS5 and 508 models, electric motor and diesel engine integration is sensitive; incorrect adjustment disrupts hybrid system balance. In automatic transmission models, excessive torque increase can lead to clutch problems. DPF regeneration causes problems especially in city use. In commercial vehicles (Jumpy, Scudo, Expert, Proace), excessive torque increase can lead to transmission and differential damage. In SUVs like Ford Kuga, thermal management is important. OnlineChipTuning offers safe performance in every brand and engine type with DCM3.5 experience.

Your Professional Tuning Solution Partner

You're in the right place to reveal the true character of your 2.0L/2.2L HDi/TDCI/CRD engine, free yourself from the restrictions imposed by emission systems, and achieve reliable performance suitable for your brand type (PSA, Ford, Jeep, Fiat, Toyota). With our team specialized in the DCM3.5 ECU, we offer the most suitable, customized software solution for your vehicle in terms of both performance and driving pleasure.

For HDi/TDCI/CRD Files Specially Prepared for Your Vehicle by Our Engineers Create Your Customized File Within Minutes

What is DCM3.5 ECU? Chip Tuning and Online File Solutions