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Fits all M52tu/M54 and M56 engines
all made of glass reinforced nylon
which can affect the internal oil pressure of the vanos
If you would like to purchase a full S54 Master Tool kit see our Master Tool Kit product listing
and all solenoids are cleaned and tested to ensure they are working properly
S54 CPV Kit 400-Core Fits all M52tu/M54 and M56A common problem on the S54 engines, the Constant Pressure Valve O ring fails causing a slow oil leak on the passenger side of the engine that frequently resembles a rear main seal leak. Replacing the CPV with our included upgraded Viton O ring ensures a long term solution to this common problem. Our CPV Kit includes a brand new constant pressure valve and the special tool needed to access the valve behind the exhaust header. Without the tool,