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.
2004 Mercedes Benz SLK320 AutomaticFACTORY OEM SERVICE PROCEDURE
Mixture Formation DTCS
DIAGNOSTIC TROUBLE CODE LIST
| DTC | Description |
|---|---|
| P0440 | Purge control valve vacuum control, ME-SFI fuel injection system electrical testing |
| P0441 | Purge control valve vacuum control, ME-SFI fuel injection system electrical testing |
| P0805 | Compressor function - Check electrics - ME-SFI fuel injection system |
| P1235 | Compressor function - Check electrics - ME-SFI fuel injection system |
Factory Service Tools
Use the Manual With the Right Hardware
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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.