Where is the main relay location of Passat B5?

[Lauren]

Inside the interior trim panel in front of the driver's seat. The starting relay is a specialized component for compressor starting in single-phase asynchronous motors, functioning as an independent unit to connect or disconnect the attraction coil and holding coil circuits. Employed in single-phase split-phase asynchronous motors, the starting relay assists motor initiation and automatically disengages the auxiliary winding post-start to prevent coil burnout. The operational principle of the starting relay is as follows: 1. Known colloquially among veteran electricians as a "magnetic pull," it utilizes electromagnet action to control the engagement or disengagement of another circuit. An electromagnetic relay comprises essential components such as coils, iron cores, springs, and contacts. 2. Contacts typically include normally open (NO) and normally closed (NC) types, often sharing a common terminal. When the coil is de-energized, the NC contact remains closed with the common terminal, while the NO contact stays open; upon energization, this state reverses—NO contacts close with the common terminal, and NC contacts open—thereby enabling control over the circuit connected to the contacts by regulating the coil's voltage (current).