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We calibrate the original software of your Mercedes S (W221) with the S420 4.0 CDI (OM629DE40LA) individually, for more power, more torque and sharper throttle response. Bring the car to us in Stödtlen or send us the ECU.
Choose stage and options yourself, plus an on-site appointment or sending in the ECU. One fixed price, the same for both.
Stage 1 from250 €
Configure nowTypical range for this ECU family, no power guarantee. The result depends on engine condition, fuel and original software.
Your S420 4.0 CDI runs on the BOSCH EDC16CP36 ECU (Bosch EDC16 Common-Rail (C/CP/+: Fiat/Alfa/Opel C39/C9/C8, PSA/Ford C34/C0/C3/CP39, Renault C36/C0, Mercedes C2/C31/CP31/CP36, VAG V6 CP34, Hyundai EDC16+, Volvo C31) family). We read out the original software, back it up and adapt the maps individually. No off-the-shelf file.
On diesels we mainly optimise injection quantity, rail pressure and boost as well as the torque and smoke limiters, for clearly stronger pull from low revs.
The original stock software can be restored at any time.
| Feature | Stock | Stage 1 | Stage 2 |
|---|---|---|---|
| Power | 320 PS | +20–30 % (guide value) | above Stage 1, depends on hardware |
| Additional hardware | – | none (software only) | upgraded intercooler and/or downpipe with sport cat |
| Fixed price | – | 250 € | 300 € |
Power figures are typical ranges (guide values) for this ECU family, not dyno measurements and not a guarantee. Stage 2 requires modified hardware.
You can add these options for your ECU right away:
On request, depending on engine and software version. We check it on your original file:
Launch ControlHardcut LimiterDPF OffSwirl Flap Delete
Configure & order
Choose stage and options, on site or send-in, at one fixed price.
Appointment or shipping
On site in Stödtlen on your preferred date, or send us the removed ECU, insured.
Individual calibration
We read out the original software, back it up and adapt it to your engine.
Done
On site you drive off right away; a sent-in ECU goes back to your delivery address programmed.
Same price, on site or sent in.
No franchise, no mass production. Every tune is handcrafted.
Usage notice
The software change voids the type approval of your vehicle. The software is intended for motorsport use only. Learn more
Mercedes S (W221) · S420 4.0 CDI OM629DE40LA