BMW 320d G20 - stage 1
The BMW 320d G20 is the perfect combination of comfort, economy and performance .
The 2.0d unit (B47D20B) with the modern Bosch MD1CS001 control unit has a large factory reserve that can be safely used thanks to individual ECU tuning.
In this implementation, we prepared an original Stage 1 file , developed on the basis of measurements from the Dynomax / Dynomet dynamometer and a thorough analysis of engine logs.
The result is a complete transformation of the driving experience – the car has become more dynamic, flexible and responsive, while maintaining the full durability of the unit.
Vehicle details
| Parameter | Value |
|---|---|
| Model: | BMW 3 Series G20 320d |
| Year: | since 2019 |
| Engine: | 2.0d (B47D20B) |
| ECU controller: | Bosch MD1CS001 |
| Factory power: | 190 HP / 400 Nm |
| After Stage 1: | 225 HP / 480 Nm |
| Increase: | +35 HP / +80 Nm |
Modification process
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🔍 Diagnostics and logs – analysis of operating parameters, boost pressure, EGT and AFR.
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⚙️ Reading Bosch MD1CS001 ECU – via OBD connector, without the need to dismantle the controller.
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🧩 Development of an individual Stage 1 file – optimization of torque, boost pressure and fuel doses.
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📊 Measurement and testing on Dynomax / Dynomet dynamometers – confirmation of the effects and safety of changes.
Each modification is performed within factory safety margins and in accordance with OEM Safety principles.
This allows the engine to run smoothly, without excessive exhaust temperatures and turbocharger loads.
Effects after modification
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⚡ Significantly better acceleration – especially in the mid-range
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🚗 Greater flexibility at low speeds
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🔧 Stable operation, no smoke and full EGT safety
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⛽ Possible fuel consumption reduction by 0.3–0.5 l/100 km when driving calmly
The end result is a car that handles smoothly and confidently – Stage 1 gives it a character similar to the 330d version, while retaining the economy of a four-cylinder diesel engine.
Technical description
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Controller: Bosch MDG1_MD1CS001
B47D20O1-G2x_ECE_AWD1A#S18A-22-07-520-FS (O_8PGW0-000078E4-004)0281035994
041459
O_8PGW0-000078E4-004 -
Reading mode: OBD
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Scope: Stage 1
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Completion time: approx. 40 minutes
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Measurement: Dynomax / Dynomet dynamometers
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File: Author's chiptuning file matched to the HW/SW version
Why tuners choose our files for BMW MD1CS001
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✅ Fully compatible with Bosch MD1CS001 system
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⚙️ Versions: Stage 1 / Stage 2 / ECO
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💾 Chiptuning files available for download in 30-40 minutes
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🔍 Technical support and log analysis
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🧠 Files tested on Dynomax / Dynomet dynamometers
Summary
✅ BMW 320d G20 (B47D20B / MD1CP002 / MD1CS001 )
✅ Modification: Stage 1 – 225 HP / 480 Nm
✅ Gain: +35 HP / +80 Nm
✅ Stage 1 file developed – safe and fully customizable
✅ Measurement: Dynomax / Dynomet
✅ Preparation time: 30–40 min
