Mercedes-Benz S - 420 CDI 320hp

2 ECUs found for this engine. Select an ECU to view available tuning services and pricing.

Mercedes-Benz S 420 CDI 320hp Engine Specifications

Fuel Type
Diesel
Displacement
3996 cc (4.0L)
Compression Ratio
17.7 : 1
Bore x Stroke
83.0 X 92.0 mm
Engine Code
OM628
Power per Liter
80.1 HP/L

Mercedes-Benz S 420 CDI 320hp Stage 1 Chiptuning Results

VariantOriginal HPTuned HP+HPOriginal NmTuned Nm+Nm
420 CDI 320hp320360+40730820+90

Mercedes-Benz S 420 CDI 320hp: Before this file is prepared

For the Mercedes-Benz S 420 CDI 320hp, the uploaded file is the final reference. We check whether it is original or already modified before preparing the order, and we contact you first if the read or selected service does not match the vehicle data.

  • Upload a complete original ECU read from the tool you used, or a TCU read only when the selected service is gearbox tuning.
  • Add the vehicle year, gearbox, read/write tool and any dashboard or diagnostic symptoms.
  • Select only the services that match the actual vehicle hardware and intended legal use.

Mercedes-Benz S 420 CDI 320hp Frequently Asked Questions

What tuning services are available for the Mercedes-Benz S 420 CDI 320hp?
WEREMAP offers 30 tuning services across 2 ECU variants for the Mercedes-Benz S 420 CDI 320hp.
How much does ECU tuning cost for a Mercedes-Benz S?
ECU tuning prices for the Mercedes-Benz S 420 CDI 320hp range from 24 to 180 credits, depending on the ECU variant and tuning service selected.
What ECU does the Mercedes-Benz S 420 CDI 320hp use?
The Mercedes-Benz S 420 CDI 320hp is available with the following ECU variants: Bosch EDC16CP31, Bosch EDC16CP36. WEREMAP provides professional tuning files for all of these.

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