8J (Mk2)
Key reference: 8P0837220D
Select variant
Select variant
Diagnostic port location (OBD)
Illustrative — for orientation only.
RHD (UK cars): driver's footwell, tucked under the lower edge of the dash above the accelerator pedal, roughly in line with the headlight switch and just behind the bonnet release handle. Look upwards from the footwell rather than down at the carpet — sitting in the seat you will not see it. LHD: driver's footwell, under the lower edge of the dash above the brake pedal, immediately alongside the bonnet release handle. The 16-pin socket faces downwards on both and sits in the same place on Coupé and Roadster and on every trim from 1.8 TFSI through TTS and TT RS. Drop the steering wheel to its lowest setting before you plug in a chunky connector or a bench harness.
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