What is Mercedes-Benz factory option code 401?

Climatised Front Seats (Interior Comfort): Integrates seat ventilation fans alongside traditional electrical heating elements for optimal long-distance ergonomics. Check the door panel switches. A seat heating icon accompanied by a blue fan icon confirms climatisation hardware. Test for proper airflow; fans can accumulate dust or wear out, resulting in noisy operation.

Factory Equipment Codes

What is Factory Option Code 401?

Official factory specification for Climatised Front Seats (Interior Comfort).

Specification & Capabilities

Climatised Front Seats is classified under the Interior Comfort category.

Code 401 - Integrates seat ventilation fans alongside traditional electrical heating elements for optimal long-distance ergonomics.

STANDARD CODE IDENTIFIERCode 401

EQUIPMENT CATEGORYInterior Comfort

Used Car Buyer Checklist: Code 401

Check the door panel switches. A seat heating icon accompanied by a blue fan icon confirms climatisation hardware. Test for proper airflow; fans can accumulate dust or wear out, resulting in noisy operation.

🚨 Avoid Retrofit Frauds:Always decode the VIN configuration rather than relying on visual trims. Sellers frequently install visual replicas (such as speaker covers or AMG body panels) on standard vehicles to charge a premium. A genuine datacard decode matches the vehicle's manufacturing specifications on the day it rolled off the assembly line.