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 SYSTEMSOIL PRESSURE SENSORDESCRIPTION AND OPERATION
2009 Smart ForTwo BRABUS Coupe (451.333) L3-1.0L (132.930)
Oil Pressure Sensor: Description and Operation
2009 Smart ForTwo BRABUS Coupe (451.333) L3-1.0L (132.930)SECTION Description and Operation
GF18.40-P-4000MCC Component Description For The Oil Pressure Switch
- ENGINE 132.9 in MODEL 451.3 /4
S41/1 Engine oil pressure switch
Location
The oil pressure switch sits at bottom right on the oil filter flange.
Task
The oil pressure switch detects the engine oil pressure and leads this to the ME-SFI [ME] control unit (N3/10).
Function
As soon as there is sufficient oil pressure applied at the switch it opens and thus interrupts the electric circuit. This serves the ME-SFI [ME] control unit as information about sufficient oil pressure in the oil circuit. The oil pressure warning lamp (A1e30) in the instrument cluster (A1) goes out.
RENDER: 1.0x
NO RELATED
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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.