Mercedes-Benz Clase A ECU remapping
1,088 files available
About remapping
The Mercedes-Benz A-Class accounts for 1,088 files in our catalogue, and unusually for the brand the petrol engines lead: the 2.0T and the 2.0 AMG head the list, alongside the 1.8 CDI and 1.5 CDI BlueEfficiency diesels. It is a premium compact with a genuinely sporting range at the top.
Stage 1 makes up 916 files, with 126 Stage 2 and 105 speed limiter removals. The Stage 2 proportion reflects the AMG versions, which are frequently modified. The ECUs are Delphi CRD3 and Siemens SID307 on the diesels, plus MED17.7.2, MED17.7.7 and MED17.7 on the petrol units.
Model highlights
- ›916 Stage 1 files, with the petrol range leading unusually for the brand.
- ›Coverage of the 2.0 AMG alongside the mainstream engines.
- ›126 Stage 2 files, reflecting the frequently modified AMG versions.
- ›ECUs including Delphi CRD3, Siemens SID307, MED17.7.2 and MED17.7.7.
Fuel split
Engines and gains
| Engine | Fuel | Stock | Stage 1 | Stage 2 |
|---|---|---|---|---|
| 45 AMG | Petrol | 387 hp | 468 hp +81 | — |
| 200 CDI 4MATIC | Diesel | 136 hp | 205 hp +69 | — |
| 160 | Petrol | 102 hp | 172 hp +70 | — |
| 170 CDI | Diesel | 95 hp | 120 hp +25 | 136 hp +41 |
| 150 | Petrol | 95 hp | 105 hp +10 | — |
| 160 CDI | Diesel | 90 hp | 115 hp +25 | — |
Indicative figures from the technical catalogue; confirmed when you request the file.
Power curve
170 CDI
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.
Pops & bangs
Pops & bangs exhaust effect (on lift-off and gear changes).
DPF off
Particulate filter solution: no more regenerations or blockage warnings.
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
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Log in as a professionalFrequently asked questions
Do you work on the AMG versions?
Yes, the 2.0 AMG is well represented in our catalogue and accounts for much of the Stage 2 work on this model.
What is BlueEfficiency?
It is the efficiency-focused calibration applied to several diesel variants of the range. Both the 1.5 and 1.8 CDI BlueEfficiency units are covered.
Will it affect my warranty?
A remap is detectable by the manufacturer and can affect warranty cover on engine-related components. We keep the original file so it can be reversed.