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E350 Fuel filter part number

2K views 4 replies 2 participants last post by  Dan1yar 
#1 ·
Hi guys,
I have Mercedes E350 W211, a previous owner replaced fuel filter (sending unit, don't know what is correct) which is behind driver's seat. I attached a picture and as you can see a sensor is not attached, a hole for this sensor is missing in the filter's body. Please tell me what sensor is this, what part number for the correct fuel filter and what it looks like? Due to this hanging sensor I have error codes P0451, the other error code is P2421 (something related to Y58/1). Any suggestions?
 

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#4 · (Edited)
Current part # is 2114706094. You can Google older part #s for images to match what is installed.

P0451 B4/3 (Fuel tank pressure sensor) Short circuit to positive
P0451 B4/3 (Fuel tank pressure sensor) Short circuit to ground
P0451 B4/3 (Fuel tank pressure sensor) Open circuit
P0451 B4/3 (Fuel tank pressure sensor) Signal implausible

P2421 = mechanical defect or component Y58/1 (purge control valve) is permanently open.
 

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