Filter device

A filter device, comprising:

• a filter housing including a housing pot closed by a removable lid part;
• a replaceable filter element being accommodated in the filter housing and having element material separating an unfiltrate chamber from a filtrate chamber in the filter housing;
• a measurement sensor capable of sensing pressure values from at least one of the unfiltrate and filtrate chambers, the measurement sensor being disposed on a lid inner side of the lid part and at least partially guided in the lid part and projecting into the filter housing, at least parts of a measured value evaluator being connected to the measurement sensor and being disposed on a lid outer side facing an environment outside of the filter housing and being opposite the lid inner side, the measurement sensor having a sensor channel at least partially encompassed by a sensor tube extending coaxially with respect to a longitudinal axis of the filter element and connecting one of the one of the unfiltrate and filtrate chambers on the lid inner side to a receiving space on the lid outer side in a fluid-conveying manner, the receiving space being part of the measured value evaluator;
• and
• a bypass valve connecting the unfiltrate chamber to the filtrate chamber when the element material of the filter element is blocked, a valve spring of the bypass valve extending between the lid inner side and a valve member of the bypass valve closing a frontal opening of the filter element in an unblocked state of the bypass valve, the sensor tube passing through the bypass valve.