Mk3 / Mk3.5 (C346; facelift built from late 2014, sold as 2015 model year). Hatchback and estate, including ST and RS
Key reference: 1743826
Select variant
Select variant
Diagnostic port location (OBD)
Illustrative — for orientation only.
RHD (UK/Ireland): lower dash to the right of the steering column on the door side, behind the small pop-out cubby (coin tray) set into the lower dash panel. The 16-pin socket is clipped into the back wall of that recess. LHD (mainland Europe): the mirror position, lower dash to the left of the steering column near the driver's door, behind a small cover marked OBD. Same position on hatch, estate, ST and RS, pre-facelift and facelift. ST and RS owners often unclip the socket and relocate it or splice it into a hidden connector as an anti-theft measure. If the recess is empty, follow the loom up behind the lower dash before quoting.
RHD: squeeze the sides of the pop-out cubby and pull it straight towards you. It comes out by hand with no tools and the socket is visible behind it. LHD: pull the cover marked OBD off by hand. The socket itself is held by two side clips, so pressing both clips in (two small flat screwdrivers help) lets you push it back into the dash to route a lead or pull it forward if it has been pushed up out of sight.
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