Mercedes-Benz S - 2.1 CDI S250

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

Mercedes-Benz S 2.1 CDI S250 Engine Specifications

Fuel Type
Diesel
Displacement
2143 cc (2.1L)
Compression Ratio
16.2 : 1
Bore x Stroke
88.0 X 88.3 mm
Engine Code
OM646.963
Power per Liter
95.2 HP/L

Mercedes-Benz S 2.1 CDI S250 Stage 1 Chiptuning Results

VariantOriginal HPTuned HP+HPOriginal NmTuned Nm+Nm
250 CDI 204hp204230+26500560+60
300 Hybrid 231hp231260+29500600+100
Delphi CRD3.xx14 services

Mercedes-Benz S 2.1 CDI S250: Before this file is prepared

For the Mercedes-Benz S 2.1 CDI S250, 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.

Other S Engines

2.1 CDI3.0L V63.2 CDI3.2L V63.5L V63.7L V8

Mercedes-Benz S 2.1 CDI S250 Frequently Asked Questions

What tuning services are available for the Mercedes-Benz S 2.1 CDI S250?
WEREMAP offers 14 tuning services across 1 ECU variants for the Mercedes-Benz S 2.1 CDI S250.
How much does ECU tuning cost for a Mercedes-Benz S?
ECU tuning prices for the Mercedes-Benz S 2.1 CDI S250 range from 24 to 180 credits, depending on the ECU variant and tuning service selected.
What ECU does the Mercedes-Benz S 2.1 CDI S250 use?
The Mercedes-Benz S 2.1 CDI S250 is available with the following ECU variants: Delphi CRD3.xx. WEREMAP provides professional tuning files for all of these.

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