Your Vehicle
Mercedes-Benz CLA 45 AMG 381hp
Technical Specifications
Power and torque increase
Stage 1: software remap only, no mechanical changes, fully reversible. Stage 2: remap combined with downpipe / sports air filter.
Power HP
Torque Nm
Book your Stage 1 remap
499 € VAT included · pay online, the work is done at the workshop you choose
Power Graph · Stage 1
Mercedes-Benz CLA 45 AMG 381hp: da 381 a 420HP
Values for Stage 1 (change the stage from the control above)
Remapping Mercedes-Benz CLA
MasterTuning is a leader in developing remapping for Mercedes-Benz. La Mercedes-Benz CLA 45 AMG 381hp può passare da 381 HP a 420 HP con un incremento di 39 HP.
The development of each remap is customized by MasterTuning.
- 100% tested and customized files guarantee
- Tested and developed on a 4x4 dyno
- Best performance, within safety margins
- Reduced fuel consumption
ECU Remapping Details Mercedes-Benz CLA 45 AMG 381hp
The Mercedes-Benz CLA 45 AMG 381hp is equipped with a petrol engine that produces 381 HP and 475 Nm of torque in its factory configuration. With MasterTuning's professional ECU remapping, this Mercedes-Benz can achieve 420 HP (+10%) and 540 Nm (+14%).
Our Stage 1 tuning for the CLA C117 - 2016 - 2019 delivers an impressive gain of +39 HP and +65 Nm, optimizing the petrol engine's performance while maintaining reliability and staying within safe parameters.
The engine code M133 De 20 AL identifies this specific powerplant configuration. The Bosch MED17.7.2 ECU is professionally recalibrated to unlock hidden potential while preserving engine longevity.
With 381 HP from factory, this Mercedes-Benz CLA is already a performance vehicle. Our remapping extracts even more potential, delivering exhilarating acceleration and enhanced driving dynamics for enthusiasts who demand the best.
Technical Specifications — Mercedes-Benz CLA 45 AMG 381hp
Factory technical data for the Mercedes-Benz CLA 45 AMG 381hp (C117 - 2016 - 2019), used by MasterTuning engineers to develop a tailored, dyno-tested remap for this specific powerplant.
| Engine code | M133 De 20 AL |
|---|---|
| ECU / Control unit | Bosch MED17.7.2 |
| Fuel | Petrol |
| Compression ratio | 8.6 |
| Bore × stroke | 83.0 X 92.0 mm |
| Stock power | 381 HP · 475 Nm |
| Remapped power (Stage 1) | 420 HP (+39) · 540 Nm (+65) |
Don't want to touch the ECU?
Rapid Dimsport add-on modules connect to the engine sensors with original connectors: they fit in a few hours and come off without a trace, leaving the factory software untouched. Useful on a leased car, one still under warranty or one you plan to sell soon. Check which ones fit your Mercedes-Benz CLA.
Frequently Asked Questions - Mercedes-Benz CLA
How much power can I gain from remapping my Mercedes-Benz CLA?
With MasterTuning Stage 1, your Mercedes-Benz CLA 45 AMG 381hp can gain +39 HP (from 381 to 420 HP) and +65 Nm of torque. This represents a 10% increase in power.
Is ECU remapping safe for the Mercedes-Benz CLA engine?
Yes, MasterTuning's remapping for the Mercedes-Benz CLA 45 AMG 381hp is developed within safe parameters. All calibrations are tested on our 4x4 dyno and stay within the mechanical limits of the M133 De 20 AL engine.
Is the Mercedes-Benz ECU remapping reversible?
Absolutely. The original factory calibration of your Mercedes-Benz CLA is always backed up before remapping. The process is 100% reversible at any time.
Will remapping affect my Mercedes-Benz warranty?
ECU remapping may affect your manufacturer warranty. We recommend checking your specific warranty terms. Many of our customers choose to remap after the warranty period or accept this trade-off for the significant performance gains.
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Book your remap or ask for a quote
Stage 1 can be bought online and is done at the workshop you choose; for Stage 2 we send you a quote.
Stage 2 is quoted on request: write to us and we will reply with price and timing.
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