Description
This Volkswagen fuse relay box is an original power distribution unit for Passat B3 and Passat B4 models. The primary OEM number is 357937039. It houses the main fuse and relay positions that support the vehicle’s central electrical system and under-dash power routing.
Its job is to organize, protect and distribute electrical power to multiple vehicle circuits while providing mounting points and connections for relays and fuses. A sound fuse relay box helps maintain stable operation of lighting, ignition-related feeds, accessories and other essential electrical functions across the car.
Common signs of a faulty unit include intermittent electrical faults, blown fuses without an obvious cause, relays that lose contact, non-working accessories, starting issues linked to power supply interruption, or visible heat damage and corrosion at the terminals. Cracked housings or burnt connector points can also lead to unreliable system performance.
This is a used original part, removed from a vehicle and tested. Match OEM number 357937039 before ordering. Professional installation is recommended, especially where old wiring, relay sockets or terminal positions need careful inspection to ensure proper and safe electrical operation.
Returns accepted only for genuine faults — faulty on arrival, not as described, or wrong part supplied — requested within 14 days, with all 3 anti-tamper stickers intact. No returns for change of mind, incorrect installation, coding/programming, or buyer compatibility errors; checking compatibility (OEM number, firmware, vehicle) is the buyer’s responsibility. Full policy: https://giantparts.eu/refund-and-returns/
