BMW Serie 1 ECU remapping
4,418 files available
About remapping
The BMW 1 Series accounts for 4,418 files in our catalogue, with the 2.0d diesel — badged 118d, 120d and 116d depending on output — as the mainstay, alongside the 116i and 118i petrol units. It is a compact rear-wheel-drive hatchback with genuine driver appeal, and that shows in the kind of work requested.
Stage 1 makes up 3,725 files, with 505 Stage 2 and 416 speed limiter removals. The ECU range covers EDC17C06, EDC17CP02, EDC17C41, EDC17C50 and EDC17C56 on the diesels, plus MEVD17.2.5 on the petrol versions. All work starts from the original read of the unit.
Model highlights
- ›3,725 Stage 1 files across the diesel and petrol range.
- ›The 2.0d diesel is the dominant engine in all its output levels.
- ›505 Stage 2 files, a healthy proportion for this model.
- ›ECUs including EDC17C06, EDC17CP02, EDC17C41, EDC17C50 and MEVD17.2.5.
Fuel split
Engines and gains
| Engine | Fuel | Stock | Stage 1 | Stage 2 |
|---|---|---|---|---|
| 1M 3.0i Bi-Turbo | Petrol | 340 hp | 378 hp +38 | 400 hp +60 |
| M135i | Petrol | 320 hp | 362 hp +42 | 382 hp +62 |
| 135i | Petrol | 306 hp | 362 hp +56 | — |
| 130i | Petrol | 265 hp | 286 hp +21 | — |
| 25i | Petrol | 224 hp | 304 hp +80 | — |
| 125d | Diesel | 218 hp | 256 hp +38 | — |
| 125i | Petrol | 211 hp | 252 hp +41 | — |
| 123d | Diesel | 204 hp | 235 hp +31 | 256 hp +52 |
| 120d | Diesel | 177 hp | 210 hp +33 | 218 hp +41 |
| 20i | Petrol | 177 hp | 217 hp +40 | — |
| 118i | Petrol | 170 hp | 214 hp +44 | 236 hp +66 |
| 118d | Diesel | 143 hp | 180 hp +37 | 190 hp +47 |
| 18i (1.6) | Petrol | 136 hp | 178 hp +42 | 212 hp +76 |
| 116i | Petrol | 136 hp | 178 hp +42 | 208 hp +72 |
| 18i | Petrol | 129 hp | 146 hp +17 | — |
| 16i | Petrol | 109 hp | 164 hp +55 | — |
| 114i | Petrol | 102 hp | 178 hp +76 | 208 hp +106 |
| 16d (2.0) | Diesel | 90 hp | 156 hp +66 | 186 hp +96 |
Indicative figures from the technical catalogue; confirmed when you request the file.
Power curve
20i
ECUs
Generations covered
ECU manufacturers
Available services
Remapping services
Stage 1
Optimising the original map with no hardware changes: more power and torque, full reliability.
Stage 2
Remap for vehicles with mechanical upgrades (intake, exhaust, intercooler…).
Speed limiter removal
Removal of the factory speed limiter.
EGR off
EGR valve management to reduce soot issues and improve response.
DPF off
Particulate filter solution: no more regenerations or blockage warnings.
Pops & bangs
Pops & bangs exhaust effect (on lift-off and gear changes).
AdBlue/SCR off
AdBlue/SCR system management to avoid faults and lock-outs.
DTC delete
Clearing of fault codes (DTC) that can't be removed via diagnosis.
Stage 3
Setup for high-performance modifications on specific hardware.
Why remap with Repromatronic
- ✓More power and torque with engine-safe tuning
- ✓Sharper throttle response and nicer driving
- ✓Potential fuel savings in normal driving
- ✓Files built from the original and 100% reversible
- ✓Made by technicians with thousands of projects behind them
Are you a driver?
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Log in as a professionalFrequently asked questions
What does a 1 Series gain from Stage 1?
Mainly mid-range torque and throttle response. In a compact rear-wheel-drive car, that translates into a noticeably more eager feel in everyday driving.
Do you cover the petrol versions?
Yes, the 116i and 118i are present in the catalogue with MEVD17.2.5 ECUs, though the bulk of the work on this model is diesel.
What is Stage 2 and do I need it?
Stage 2 assumes mechanical modifications such as intake or exhaust. If your car is standard, Stage 1 is what applies to you.