Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSMART2009FORTWO BRABUS COUPE (451.333) L3-1.0L (132.930)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESAR54.21-P-0013-04MCC OFFLINE SCN CODING
2009 Smart ForTwo BRABUS Coupe (451.333) L3-1.0L (132.930)
AR54.21-P-0013-04MCC Offline SCN Coding
2009 Smart ForTwo BRABUS Coupe (451.333) L3-1.0L (132.930)SECTION AR54.21-P-0013-04MCC Offline SCN Coding
AR54.21-P-0013-04MCC Offline SCN Coding
The following work instructions describe the procedure for offline SCN coding.
Precondition for offline SCN coding:
^ STAR DIAGNOSIS diagnosis system with printer and fax machine
^ Correct adjustment of date and time in STAR DIAGNOSIS
^ Special equipment which was subsequently installed in or removed from the vehicle, must be redocumented in the vehicle documentation system (FDOK).
Offline SCN coding
1 Confirm note on sequence of SCN coding with the "F2 button".
2 Prepare the inquiry form by pressing the "F4 button".
3 Print out inquiry form by pressing the "F11 button".
4 Send the printed-out inquiry form to fax number +49 180511 6373.
The inquiry result must be faxed back immediately.
5 Enter "coding string", "SCN" and "check digit [2]" in the corresponding input fields in the diagnosis assistance system and confirm with the "F3 button".
6 Once the coding process has finished the event log on the documentation of the repair order appears. This event log must be filled in completely, then printed out with the "F11 button" and enclosed with the repair order.
7 Finish SCN coding by pressing the "F2 button".
SCN coding of the control unit is thus successfully concluded.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.