OEM 02D525558A direct replacement ensures precise fit and function for Haldex AWD systems
Maintains correct AWD oil pressure for reliable rear wheel engagement
Prevents delayed or absent AWD fault codes by replacing clogged filters
Compatible with Audi A3 TT 4WD Quattro and VW Golf 4Motion Haldex Generation 1 systems
Summarized by Shop
Haldex AWD Coupling Filter – Generation 1 | VAG | OEM 02D525558A The Haldex Gen 1 coupling filter must be replaced at regular service intervals. A clogged filter reduces oil pressure to the coupling pump — causing delayed or absent rear wheel engagement and AWD fault codes. Direct replacement filter for VAG Gen 1 Haldex systems. Fits OEM #0