Renault Master 2.3 dCi 99 kW (SID321) – more power and no more problems with AdBlue and DPF
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The Renault Master with a 2.3 dCi 99 kW (135 HP) engine and the SID321 controller is a very popular model among delivery vehicles, but the standard version often lacks flexibility – especially when fully loaded or when driving in mountainous terrain.
We performed a full modification package on this example, which not only increased power but also resolved some troublesome emissions issues.
Scope of work performed
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⚙️ Chiptuning (Stage 1) – individual Stage 1 file prepared based on SID321 software,
➜ increase: +55 HP and +85 Nm
➜ better throttle response and greater flexibility under load. -
🧯 SCR / AdBlue OFF – deactivation of the urea dosing system, no more errors and AdBlue pump failures.
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💨 DPF OFF – removal of the particulate filter logic, improving the flow and stability of the unit.
The final effect
After modification, the Renault Master 2.3 dCi has gained a completely new character.
The engine has become more dynamic, responds smoothly to gas and maintains power even with maximum load.
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🚗 Better acceleration and flexibility throughout the rev range
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⚡ Significant increase in power and torque
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🧩 No more problems with AdBlue / DPF systems
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🔧 Stable, failure-free operation
The modification was carried out while maintaining safe operating parameters of the turbocharger, injection and exhaust gas temperatures.
Technical description
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Driver: Bosch SID321
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Engine: 2.3 dCi 99 kW (135 HP)
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Scope of work: Stage 1 + AdBlue OFF + DPF OFF
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Measurement: Dynomax / Dynomet dynamometers
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File processing time: approx. 40 minutes
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Software: proprietary chip tuning file adapted to the HW/SW version
We prepare each file individually – in compliance with OEM Safety standards and torque limits, making tuning completely safe for the drive unit.
Summary
✅ Renault Master 2.3 dCi (SID321)
✅ Modification: Stage 1 + AdBlue OFF + DPF OFF
✅ Result: +55 HP / +85 Nm
✅ Stable operation, better gas response, no SCR system failures
✅ Measurement and testing: Dynomax / Dynomet dynamometer
✅ Individual Stage 1 file developed based on professional chip tuning files
Order an ECU file or schedule an order
📩 Contact us if your Renault Master needs more power or you want to get rid of AdBlue / DPF system problems.
We offer ready-made chiptuning files for SID321 controllers and other Ford / Renault / Opel ECUs.
