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Mercedes-Benz GLC-Class OBD port location

On every North American Mercedes-Benz GLC-Class we cover, the OBD port is on the driver's side.

One generation, 2016–2022.

2016–2022

X253 (GLC SUV)

Illustration — use it to know where to look.

Location

LHD (every US and Canadian car): driver's footwell, on the underside of the dashboard directly above the brake pedal, just to the right of the red bonnet (hood) release handle and left of the steering column. Find the hood release first and the socket is beside it at knee height. Same position on the GLC SUV and GLC Coupé, on GLC300, GLC350e and AMG GLC43/63, before and after the MY2020 facelift.

How to access

The 16-pin socket sits behind a small plastic flap about two fingers wide. Pull the lower edge towards you and it hinges down — no tools. The connector faces down towards the pedals once the flap is open.

Also on this GLC-Class

  • KeysSmart key
  • Tools confirmed5
  • Transponder chipSubscribers
  • Programming procedureSubscribers
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Questions

Mercedes-Benz GLC-Class OBD questions

X253 (2016–2022): LHD (every US and Canadian car): driver's footwell, on the underside of the dashboard directly above the brake pedal, just to the right of the red bonnet (hood) release handle and left of the steering column.
Key battery for this GLC-Class

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Step-by-step add-key and all-keys-lost procedures for every GLC-Class, which of your tools will do it, and what catches people out.

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