A1767800040 is the primary/base OE number for this sunroof roller blind. A1767802000 is a supersession number that replaced the base OE in later production runs or service bulletins. A1767800600 is a variant number that typically denotes a specific color or configuration option. All three OE numbers refer to the same functional component and are fully interchangeable for fitment purposes. When cross-referencing with your vehicle's parts catalog, any of these three numbers may appear depending on model year, trim level and market region.

Our A-Grade classification means the fabric meets the following quality standards: (1) No visible wrinkles, creases or fold marks when fully extended; (2) Color consistency within ΔE≤2.0 compared to OE reference sample under D65 lighting; (3) Edge cutting tolerance ≤1mm with no fraying or loose threads; (4) Uniform opacity with no thin spots or light leakage patches; (5) Smooth retraction without binding or uneven rolling. B-Grade units (minor cosmetic defects) are available at reduced pricing upon request.

Color matching is critical for interior trim parts. We strongly recommend providing your VIN AND a clear photo of your existing roller blind or adjacent interior trim when placing an order. Our team will cross-reference the VIN against Mercedes-Benz build data to confirm the original factory color code. Additionally, all shipments include a color verification label on each individual box showing the exact shade name and batch dye lot number. If you are stocking multiple colors, we can provide physical fabric swatch cards free of charge for your showroom or warehouse reference.

This is a complete roller blind assembly including the fabric roll, spring-loaded retraction mechanism, aluminum/plastic guide rails, end caps and mounting brackets. It is designed as a direct drop-in replacement for the entire original unit. Fabric-only replacements are not recommended because the retraction spring tension degrades over time and reused mechanisms often cause uneven rolling or premature fabric wear. Full assembly replacement ensures consistent operation and appearance.