Mercedes 300 rear window replacement — booked online.

What features does your 300 have?

Tap a feature to see what it is, how to spot it on your car, and how it affects glass replacement. We confirm the exact match for your vehicle when you book.

• Heated Rear Windscreen3

  1985–1997

  Heated rear windscreen with integrated wires clears mist and ice when you switch on the demister.

  What it means

  A heated rear windscreen contains fine heating wires embedded within the glass. When you activate the rear demister, an electrical current passes through these wires, warming the glass and melting ice or condensation. This feature is particularly useful in cold or damp weather, improving rear visibility quickly. The heating grid is integral to the glass and connected to your vehicle's electrical circuit via connectors at the base of the windscreen.

  How to tell

  Look at the rear windscreen from inside the vehicle — you will see a fine grid of horizontal lines across the glass, typically bronze or copper in colour. On the dashboard or steering wheel stalk, there will be a dedicated rear-demist button, usually marked with a windscreen symbol and heating lines. If in doubt, ask your vehicle's service centre or consult your handbook.

  Replacement impact

  Replacement rear windscreens with heated grids are widely available as original-equipment aftermarket or dealership parts. The new glass must include the factory heating grid and electrical connectors intact. The technician will reconnect the heating circuit to your vehicle's rear-demist switch. Heated rear windscreens are bonded glass, so adhesive cure time applies; drive-away time will be confirmed by the fitter on the day.

• Green2

  1985–1997

  Green tint reduces glare and improves visual comfort by filtering certain light wavelengths.

  What it means

  Green tint is a light-filtering coating applied to the glass during manufacture. It absorbs and reduces transmission of certain wavelengths of light, primarily to cut glare from sunlight and reflections. The tint is subtle — often barely visible to the naked eye — but measurably improves visual comfort during prolonged driving, particularly in bright conditions. It's a factory specification chosen by the vehicle manufacturer to balance daylight comfort with interior visibility and aesthetic consistency across all glass in the vehicle.

  How to tell

  The easiest way to check is to roll your side window halfway down and hold a piece of white paper behind it. Look carefully for a tint cast — green tint will appear as a subtle green hue compared to clear glass. Your windscreen will have the same tint as your side windows. You can also ask your vehicle's dealership or service centre — they'll have the original specification on file.

  Replacement impact

  Green-tinted replacement glass must match the original tint specification to maintain visual consistency across all windows and preserve the vehicle's interior aesthetics. Aftermarket OE-equivalent (OEE) green-tinted glass is widely available, though some vehicles may require original equipment (OEM) dealership glass if the tint specification is proprietary. Tint does not affect calibration, cure time, or installation procedure — it's a cosmetic and functional specification only.

• Clear1

  1985–1996Calibration varies by vehicle

  Clear windscreen glass has no tint; most cars have a slight tint as standard.

  What it means

  A clear windscreen contains no added tint layer. Most modern windscreens incorporate a subtle tint (typically blue, green, grey or bronze) as standard to reduce glare, provide UV protection, and improve cabin comfort. A genuinely clear windscreen is the absence of this tint. Clear glass is less common than tinted variants and is sometimes specified for aesthetic or operational reasons, though the tint difference is usually imperceptible to the naked eye.

  How to tell

  Lower your side window halfway and hold a white piece of paper behind it. If you see a noticeable colour cast (blue, green, grey or bronze) in the side glass, your windscreen has the same tint. You can also ask your vehicle's dealership or service centre to confirm the windscreen specification in your service records.

  Replacement impact

  Clear windscreen replacement uses the same installation process as any other windscreen. No special calibration or extended cure time applies. Sourcing is straightforward — clear glass is widely available as an aftermarket replacement. Installation time and drive-away restrictions follow standard windscreen replacement timings.

• Laminated1

  1985–1996

  Laminated windscreens hold together when they crack, staying bonded to an inner layer rather than shattering into dangerous shards.

  What it means

  Laminated glass consists of two glass panes bonded to a tough plastic interlayer, usually polyvinyl butyral (PVB). When struck, the glass cracks but the interlayer holds the pieces in place, preventing the sharp shards that would scatter from tempered glass. This design prioritises occupant safety — the windscreen remains structurally sound even after impact, reducing the risk of ejection and keeping wind and weather out of the cabin. Laminated glass also provides sound dampening and blocks most ultraviolet light. All modern windscreens are laminated as standard.

  How to tell

  Look at your windscreen edge-on — you'll see a thin darker line (the interlayer) sandwiched between the two glass panes. Tap the glass gently with your knuckle: laminated glass produces a duller, more solid sound compared to the sharper ring of tempered side or rear windows. Your service manual or dealer can confirm, but all production windscreens are laminated.

  Replacement impact

  Laminated glass is bonded to the frame with structural adhesive, so cure time applies after replacement. Your windscreen is safety-critical — it contributes up to 30% of vehicle structural integrity and supports airbag deployment. The adhesive bond must fully cure before the vehicle is driven normally; your fitter will confirm the specific drive-away time before releasing the car. This is true whether or not your windscreen has camera or sensor features.