BMW 4 Series G22 - 2020+ 420d 190hp Stage 1 Chip Tuning · ECU Remap
Catalog reference — not a measured result for this vehicle.
Catalog reference: power 190 → 220 bhp, difference +30 bhp (16%); torque 400 → 480 Nm. Actual results depend on vehicle condition and measurement.
Figures are typical ranges; exact results depend on the vehicle's hardware and dyno measurement.
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BMW 4 Series G22 - 2020+ 420d 190hp
Book an appointment Find a centreReversible: Yes, the original software is kept
BMW 4 Series G22 - 2020+ 420d 190hp — Stage 1 Remap
Stage 1 re-calibrates the ECU software — boost, fuelling and ignition maps — within the factory hardware's safe tolerances. No hardware changes are required.
Solutions for this vehicle
BMW 420d Stage 1: all generations →
Stage 1 Remap
Software that optimises the engine's power and torque maps within safe limits.
Stage 2 Remap
Advanced software matched to hardware upgrades such as a sport exhaust or induction kit.
Pop & Bang
Software that creates exhaust crackle on lift-off.
Speed Limiter (Vmax) Removal
Removing the factory top-speed limiter from the software.
DTC / Fault Code Removal
Switching off selected diagnostic trouble codes (DTC) in the ECU software.
Where can this be done near you?
Prime Chiptuning applies the software at its own centres in Türkiye. Abroad, our partners carry out the work with the same files, and workshops can order the file directly.
About the BMW 2.0 diesel (N47 and B47: 116d, 118d, 120d, 318d, 320d, 520d, X1, X3)
BMW's four-cylinder 2.0 diesel is the brand's most common engine, used in the 1, 2, 3, 4 and 5 Series and X1, X3 and X4 as the N47 (2007–2014) and B47 (2014 onwards), from 116 to 231 hp. Hardware is largely shared across outputs.
How a Stage 1 remap works on the BMW 4 Series G22 420d 190hp
Stage 1 recalibrates rail pressure, injection, boost and the torque limiter. The gain is especially clear on the 116d, 118d, 316d and 318d outputs. A full low-rev torque curve results, matched to the 8-speed automatic; the character moves towards the next output up.
Pre-remap checklist
- Timing chain and tensioner on the N47 (located at the back of the engine, a known issue).
- Swirl flap mechanism and EGR cooler.
- DPF load and, on the B47, the AdBlue system.
- Boost leaks and intercooler hoses.
This section is based on Prime Chiptuning workshop experience; the power and torque figures come from the catalogue measurement above.
ECUs used in BMW vehicles
If you know your ECU family, its page lists exactly which solutions are available for it.
BMW 4 Series — Power Calculator
| Engine | Power | Gain |
|---|---|---|
| 418d 150hp | 150 → 190 bhp | +40 bhp |
| 420i 184hp | 184 → 250 bhp | +66 bhp |
| 430d 265hp | 265 → 310 bhp | +45 bhp |
| 430i 245hp | 245 → 294 bhp | +49 bhp |
| 430i 258hp | 258 → 287 bhp | +29 bhp |
| M440d 340hp | 340 → 380 bhp | +40 bhp |
| M440i 374hp | 374 → 420 bhp | +46 bhp |