Chip tuning Audi A4 B9 2.0 TFSI Ultra – +36 HP & +57 Nm SIMOS18.1
Another project in our workshop – this time an Audi A4 B9 2.0 TFSI Ultra with a standard power of 190 HP.
After individually tuning the MG1CS001 controller, we obtained 230 HP and 393 Nm , while maintaining full unit safety and driving comfort typical of the series.
Customer's car - initial state
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Model: Audi A4 B9 2.0 TFSI Ultra
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Engine: 2.0 TFSI (petrol, turbo)
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Controller: Bosch MG1CS001
8W0907115J
038651
0004 -
Drive / gearbox: S-tronic / FWD automatic
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Stock power: 194 HP / 336 Nm
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Technical condition: no ECU errors, engine in great condition
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Customer goal: better throttle response and more pronounced mid-range torque
Modification process – reading, analysis, tuning
The implementation began with full computer diagnostics and dynamic logs.
The MG1CS001 controller was read via OBD and then analyzed for ignition maps, boost pressure, torque and limiters.
Based on this, we prepared an individual Stage 1 file , tailored to the specific engine and operating conditions.
The modification included:
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optimization of torque and boost maps,
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fuel map correction for better gas response,
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adjusting the torque limits for the S-tronic gearbox.
The file was developed and validated within 30-40 minutes and then tested on Dynomax and Dynomet dynamometers to confirm the stability and repeatability of the results.
The end result – increased power and torque
| Parameter | In series | After modification | Increase |
|---|---|---|---|
| Power (hp) | 194 hp | 230 hp | +36 hp |
| Torque (Nm) | 336 Nm | 393 Nm | +57 Nm |
After tuning, the Audi A4 B9 has gained much more dynamic characteristics – the engine builds torque from 1,800 rpm, and the response to the gas pedal is immediate.
Power builds up smoothly, without jerking or overboost.
Why tuners and workshops use our files
Workshops and tuners from all over Poland cooperate with us in modifying ECU MG1CS001 and Bosch ME/MED/EDC, because each file is:
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developed on the basis of logs and measurements from Dynomax and Dynomet dynamometers,
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tested for stability, mixture and EGT temperatures ,
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available in Stage 1, Stage 2 and ECO versions,
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ready to download in 30-40 minutes ,
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provided with technical and diagnostic support.
If you run a workshop or want to check how much power can be safely obtained from an Audi A4 2.0 TFSI, contact us – we provide tested and safe files for tuners.
FAQ – frequently asked questions
Is chiptuning the Audi A4 2.0 TFSI Ultra safe?
Yes – if the modification is performed correctly based on real logs and dynamometer data. We do not change exhaust gas temperature limits or critical turbo parameters.
Does fuel consumption change after tuning?
In normal driving it can drop by up to 0.5 l/100 km because the engine produces more torque at lower revs.
Does the modification affect the durability of the S-tronic gearbox?
No – our torque maps are calibrated to safe factory limits for this transmission.
Is it possible to get the file for ECU MG1CS001 ?
Yes, files for the MG1CS001 are available in our tuner database. Registering in the B2B panel allows you to download the finished file within 30-40 minutes.
Summary
✅ Audi A4 B9 2.0 TFSI Ultra after modification achieved 230 HP and 393 Nm ,
✅ Tuning performed on the MG1CS001 controller,
✅ Result confirmed on Dynomax and Dynomet dynamometers,
✅ Stage 1 file ready in 30-40 minutes,
✅ Safe and stable modification for workshops and individual customers.
Order a file or schedule an order
📩 Contact us if you want to get more power from your Audi or are looking for a proven supplier of ECU files.
