SPEC & OE — 12V mini ISO 5-pin relay for Terminal 30 main power supply (code 458), normally-open contact; restores battery feed to control modules. OE ref: 1K0906381 / 1K0 906 381. Fits the engine-compartment relay carrier as equipped; confirm by OE number and slot marking 458 before purchase.
INSTALL & FUNCTION — Mounts in the engine-compartment fuse/relay carrier (E-box; left side on many models), location noted as code 458; this is the Terminal 30 power-supply relay (often called J317) feeding ECM/other modules. Typical failure symptoms include intermittent no-start, loss of ECU power and multi-system electrical faults. Disconnect negative battery cable, remove cover, swap relay, and seat fully.
FITMENT — Compatible with EOS & GOLF — Compatible with 2007 Volkswagen Eos Engine Compartment Relay; 2008 Volkswagen Eos Engine Compartment Relay; 2009 Volkswagen Eos Engine Compartment Relay; 2010 Volkswagen Eos Engine Compartment Relay; 2011 Volkswagen Eos Engine Compartment Relay; 2012 Volkswagen Eos Engine Compartment Relay; 2013 Volkswagen Eos Engine Compartment Relay; 2014 Volkswagen Eos Engine Compartment Relay; 2015 Volkswagen Eos Engine Compartment Relay; 2016 Volkswagen Eos Engine Compartment Relay.
FITMENT — Compatible with PASSAT & AUDI A3 — Compatible with 2006 Volkswagen Passat Engine Compartment Relay; 2007 Volkswagen Passat Engine Compartment Relay; 2008 Volkswagen Passat Engine Compartment Relay; 2009 Volkswagen Passat Engine Compartment Relay; 2010 Volkswagen Passat Engine Compartment Relay. Compatible with 2006 Audi A3 Engine Compartment Relay; 2007 Audi A3 Engine Compartment Relay.
COMPLEMENTARY PARTS — If the relay seat or carrier is heat-damaged/loose, consider the engine-bay Fuse/Relay Panel Compatible with 1K0937125D / 1K0937125A (engine-compartment relay carrier). Replacing a degraded carrier together with this relay can restore stable power distribution (sold separately).
Description
Function: Provides Terminal 30 battery power to the engine/transmission control and other modules (J317/main power feed).
Type: 12V, 5-pin Mini ISO, normally-open contact; standard “458” footprint.
OE reference: 1K0906381 / 1K0 906 381 (confirm by OE number and your vehicle catalog).
Install location: Engine-compartment fuse/relay carrier (“E-box”, left side on many models).
Typical symptoms addressed: intermittent no-start, loss of ECU/TCM power, sporadic electrical faults, Terminal 30 power-supply trouble codes.
What's in the box1 × Power supply relay, code 458
Fitment guidanceUse the OE number and the model/year list in bullets to confirm. Equipment and production splits may vary by VIN.
NotesDisconnect the negative battery cable before replacement.
If the relay seat or under-hood fuse/relay panel shows heat damage, inspect/repair the carrier before reuse.
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