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This page covers the Europe-market Mercedes-Benz A-Class. Also on Keysolved:

Australia version · 2004–2012 (W169)

Vehicles/Mercedes-Benz/A-Class 1997–2004

W168

Mercedes-Benz A-Class
1997–2004

Key reference: A1688002348

Verified · record updated 4 May 2026

Mercedes EIS Infra-Red (IR) Key SystemAdd a key · ExpertAll keys lost · Expert

Key

At a glance

Key type: Remote Head Key
Buttons: 2
Battery: CR2025
Cloning: Not possible
OEM part no.: A1688002348, A1688002648, A1688003148

Compatible tools

Confirmed

2 tools confirmed

AVDIAbrites
VVDI MB ToolXhorse

OBD port

Where to find it

Location

Driver's footwell, below the steering column. Early models (pre-2000) may have a non-standard 16-pin layout.

OBD locations for every Mercedes-Benz

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