Your Vehicle
Mercedes-Benz S 420 CDI 320hp
Technical Specifications
Power and torque increase
Stage 1: software remap only, no mechanical changes, fully reversible.
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
Mercedes-Benz S 420 CDI 320hp: da 320 a 360HP
Remapping Mercedes-Benz S
MasterTuning is a leader in developing remapping for Mercedes-Benz. La Mercedes-Benz S 420 CDI 320hp può passare da 320 HP a 360 HP con un incremento di 40 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 S 420 CDI 320hp
The Mercedes-Benz S 420 CDI 320hp is equipped with a diesel engine that produces 320 HP and 730 Nm of torque in its factory configuration. With MasterTuning's professional ECU remapping, this Mercedes-Benz can achieve 360 HP (+13%) and 820 Nm (+12%).
Our Stage 1 tuning for the S W221 - 2005 - 2013 delivers an impressive gain of +40 HP and +90 Nm, optimizing the diesel engine's performance while maintaining reliability and staying within safe parameters.
The engine code OM628 identifies this specific powerplant configuration. The Bosch EDC16CP36 / Bosch EDC16CP31 ECU is professionally recalibrated to unlock hidden potential while preserving engine longevity.
As a diesel engine, this Mercedes-Benz responds exceptionally well to ECU tuning. Owners typically report improved throttle response, smoother power delivery, and in many cases, better fuel efficiency under normal driving conditions.
Technical Specifications — Mercedes-Benz S 420 CDI 320hp
Factory technical data for the Mercedes-Benz S 420 CDI 320hp (W221 - 2005 - 2013), used by MasterTuning engineers to develop a tailored, dyno-tested remap for this specific powerplant.
| Engine code | OM628 |
|---|---|
| ECU / Control unit | Bosch EDC16CP36 / Bosch EDC16CP31 |
| Fuel | Diesel |
| Compression ratio | 17.7 |
| Bore × stroke | 83.0 X 92.0 mm |
| Stock power | 320 HP · 730 Nm |
| Remapped power (Stage 1) | 360 HP (+40) · 820 Nm (+90) |
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 S.
Frequently Asked Questions - Mercedes-Benz S
How much power can I gain from remapping my Mercedes-Benz S?
With MasterTuning Stage 1, your Mercedes-Benz S 420 CDI 320hp can gain +40 HP (from 320 to 360 HP) and +90 Nm of torque. This represents a 13% increase in power.
Is ECU remapping safe for the Mercedes-Benz S engine?
Yes, MasterTuning's remapping for the Mercedes-Benz S 420 CDI 320hp is developed within safe parameters. All calibrations are tested on our 4x4 dyno and stay within the mechanical limits of the OM628 engine.
Is the Mercedes-Benz ECU remapping reversible?
Absolutely. The original factory calibration of your Mercedes-Benz S 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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