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Relay unit from a 2004–2008 Audi A4 B7, rated 12V 40A/30A. This electromagnetic switch controls high-current circuits in the electrical system. Check the OEM codes (4D0951253, 899309000) against your wiring diagram to confirm fitment, as relay positions vary by model variant and equipment level. Test continuity and coil resistance before installation.
Relay unit from a 2004–2008 Audi A4 B7, rated 12V 40A/30A. This electromagnetic switch controls high-current circuits in the electrical system. Check the OEM codes (4D0951253, 899309000) against your wiring diagram to confirm fitment, as relay positions vary by model variant and equipment level. Test continuity and coil resistance before installation.
