Factory Equipment Codes
What is Factory Option Code 840?
Official factory specification for Dark Tinted Glass (Exterior & Body).
Specification & Capabilities
Dark Tinted Glass is classified under the Exterior & Body category.
Deep dark privacy glass applied to the rear doors, side windows, and rear window panels.
STANDARD CODE IDENTIFIERCode 840
EQUIPMENT CATEGORYExterior & Body
Used Car Buyer Checklist: Code 840
This is factory-installed dark glass, not an aftermarket plastic film. It offers superior thermal insulation and does not peel or bubble over time. Look for the 'E' safety marking on the glass panels showing original factory dark glass values.
🚨 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.