Smart 800 CDI Remap & Chiptuning – ForTwo 450 CDI, ForTwo 451 CDI

Professional ECU tuning and remapping for the Smart 800 CDI diesel engine. Our dyno-tested Stage 1 calibrations improve torque delivery, throttle response and drivability, with optional DPF, EGR and AdBlue/SCR solutions for supported ECUs.

Engine codes: OM660 0.8 CDI

Fitted to ForTwo 450 CDI ForTwo 451 CDI

+17 hp Best Stage 1 power gain

+37 Nm Best Stage 1 torque gain

1 ECU variant covered

Diesel Fuel type

Performance Gains (Dyno-Tested)

Engine	Stock	Tuned	HP Gain	Torque Gain	ECU	Order
800 CDI	54 hp	71 hp	+17 hp +31%	+37 Nm	EDC16C31Stage 1	Order file →

Figures are dyno-tested averages and may vary with hardware condition and fuel quality.

Cars this engine is fitted to

ForTwo

Smart · 1

ForTwo

Fitment is read from the ECU part numbers in our own database, not from a generic catalogue. The same engine and control unit are fitted to several cars, which is why one page serves them all.

Measured here, tunable everywhere

The figures in the table above are readings taken on the dyno for this engine, not software estimates rounded up to sell a file, and our Stage 1 is calibrated to stay inside the margins the engine was designed with. Only a part of our work is published this way: every ECU, engine and model we can read can be remapped for power, measured page or not.

Available ECU Services for this Engine

The following solutions are supported on the ECU(s) of this vehicle (Diesel):

DPF DTC Removal EGR Flaps/Swirl Removal Hot Start Fix Speed Limiter Removal

Technical Notes per ECU

Disconnection and read requirements differ by ECU. The notes below apply to the specific ECU listed; the exact removal scope per service is confirmed on each service page.

EDC16C31

EGR off ACTUATOR PLUG MUST BE DISCONNECTED

DPF off FULL READ REQUIRED DPF PRESSURE AND TEMPERATURE SENSORS MUST BE DISCONNECTED

General FULL READ REQUIRED

Each note is tagged with the service it refers to and applies to the ECU it is listed under. Mechanical preparation is the installer's responsibility. Emission-related solutions are for off-road or motorsport use where permitted by law.

Supported ECU(s): EDC16C31

Frequently Asked Questions

How much power can a Smart 800 CDI gain with Stage 1 tuning?

Stage 1 ECU tuning for the Smart 800 CDI can add up to +17 hp and +37 Nm of torque, based on dyno-tested calibrations. Actual figures depend on the exact engine variant and hardware condition.

Can DPF and EGR be removed on the Smart 800 CDI?

DPF and EGR off is supported on the ECU(s) of this vehicle, strictly for off-road or motorsport use where permitted by law. The exact mechanical preparation and sensor handling are listed per ECU in the technical notes below.

How do I order and how fast is the tuning file delivered?

Upload your original ECU read through the tuning page and receive the calibration by email. Most files are delivered within 15-20 minutes during working hours (daily, 07:00-23:00 CET).

Is the Smart 800 CDI tuning file plug-and-play?

You receive a ready-to-flash calibration based on your original file. Flashing it back to the ECU and any related mechanical preparation are handled by the installer with their own tools.

Order your Smart 800 CDI tuning file

Upload your original ECU file and receive a professional calibration in 15-20 minutes.

Tune Your File →

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