Where is the sunroof drainage pipe of the Mercedes-Benz E300L?
2 Answers
The sunroof drainage pipe of the Mercedes-Benz E300L is located at the four corners of the sunroof. Open the sunroof to see the two front drainage outlets. Daily lubrication of the sunroof: Fully open the car sunroof, wipe the dust on the slide rails with a clean soft cloth, and use a lubricant that does not easily attract dust to lubricate the slide rails and transmission pipes of the sunroof. Sunroof cleaning tips: In spring and autumn, clean the sealing ring with a wet sponge every quarter. Before long-term parking, thoroughly clean the sunroof with talcum powder to prevent the rubber seal from aging due to chemical changes in the air over time. When using a high-pressure water gun for car washing: When washing the car with a high-pressure water gun, avoid directly spraying water at the sealing ring around the sunroof, as this may cause deformation of the sealing ring under the high-pressure water jet.
When I found the sunroof clogged and water leaking into the car, I immediately checked the drainage tube locations. On the Mercedes-Benz E300L, the drainage tubes are located at the four corners of the sunroof frame, where there are small openings specifically designed to collect rainwater. The tubes run along hidden channels inside the A-pillars and C-pillars of the vehicle body, leading directly to the exits near the wheel arches at the bottom of the car. A common issue is leaves or dust clogging these areas, preventing water from draining and causing it to flow back into the interior carpet, leading to moldy seats. I recommend opening the sunroof every six months and using a toothbrush or compressed air to clean the inlet holes to avoid trouble during rainy days. If clogging persists, a mechanic can inspect the exit points to ensure the tubes aren’t aging.
