Mercedes-Benz P1666: Cylinder Cutoff' Valve Does Not Open at Cutoff
Is your scanner showing Mercedes-Benz P1666?
No worries. We'll show you what it means and how to deal with it.
Mercedes-Benz P1666: Cylinder Cutoff' Valve Does Not Open at Cutoff
OVERVIEWWhat Are The Potential Causes Of The Mercedes-Benz P1666 Code?
- Check cylinder shut-off valve.
- Test prerequisite: Fault code ‘P1666’ present. Fault code P1666 may be caused by incorrect mass air flow measurement.
- Check the entire air intake system (air cleaner, HFM-SFI mass air flow sensor) for correct installation (unmetered air).
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> Mercedes-Benz Shut-Off Valve
>>> Bosch OEM Mass Air Flow Sensor
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
Mercedes-Benz P1666, DTCDECODE.
