1iqqq9n¶

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Reddit thread: Smart roof UV failing . .¶

reddit.com/r/SmartCar/comments/1iqqq9n · p. 1 · Applies to: 451

Source: r/SmartCar (score 39, 21 comments) Topic: panoramic roof UV degradation Models discussed: 451 Solution status: unclear

Problem: Smart roof plexi-glass showing UV damage that looks like an oil slick after 15 years in the sun. Polishing provided temporary improvement but the damage returned within 1 year.

Solution: Use fine sandpaper to clean and polish the roof, then apply UV protection spray coating (lasts couple of years). Alternative solutions: vinyl wrap the roof, or spray satin black over affected areas. Clear coat can be added before sanding/polishing for additional UV resistance.

Key facts: - Polishing removes the original UV protection layer from the plexi-glass roof - UV protection spray coatings provide temporary protection (1-2 years) before reapplication needed - Vinyl wrapping is a long-term alternative to repeated polishing or costly OEM replacement - This is a common issue affecting Smart cars with panoramic/glass roofs - Mercedes OEM replacement is expensive both in parts and labor costs