Description
Front seat electric adjustment on the W166 is operated via dedicated switches that are often subject to wear over the years. Replacing them does not affect the adjustment motors, seat memory functions, or any other vehicle system.
Replacement involves unplugging the connector from the existing switch, removing it from its housing, then clipping and reconnecting the new part.
Electrically adjustable front seats are not standard across all W166 versions: verify your vehicle’s equipment and the type of switch fitted before ordering. Refer to the compatibility chart on the page.







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