CEL P0456 and P0442
04-27-2015, 02:59 PM
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GL450, Sienna SE
CEL P0456 and P0442
Anyone ever have this? P0456 and P0442 Evaporative Emission System Leak Detected (very small leak). Both codes give same description. I searched and noticed some of the E classes have this associated with a fuel tank sending unit malfunction but they smell gas in the rear seat and I don't smell anything. They said possibly gas cap but that would also throw a major leak CEL. Going to replace the gas cap anyways since it's not too expensive...
By the way I have a 2008 S550. I did call the dealer and gave them my VIN and asked for any open recalls and they said nothing.
By the way I have a 2008 S550. I did call the dealer and gave them my VIN and asked for any open recalls and they said nothing.
Last edited by BrabusCClass; 04-27-2015 at 03:06 PM.
