Constant Pressure Valve for E46 M3, MZ3 (S54), and Z4 M

This part is listed by BMW as BMW part number 11111318185 (11-11-1-318-185) and is described as Constant Pressure Valve for E46 M3, MZ3 (S54), and Z4 M. 

This is a high failure part on the S54 equipped BMWs. When it fails it will create an oil leak. Fortunately this is a pretty striaght forward fix -- Replace and install a new the CPV (constant pressure valve) and the leak is fixed. 

For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.

BMW Fitments:

3 Series
E46 (99-05) > M3
Z Series
E36/7 / E36/8 Z3 (96-02) > Z3 M - S54
Z Series
E85 / E86 Z4 (03-08) > Z4 M