Mk2 (5J)
Key reference: 5K0837202AD
Diagnostic port location (OBD)
Driver's side dashboard, below the steering column. Located behind a small flap/cover panel — pull the cover towards yourself to open it. The connector is then directly accessible. Confirmed for 2007-2011 via Klavkarr (user-photo source); 2010-2014 facelift retains identical dashboard layout and port position.
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