Where is the sunroof drain hole located on the Mercedes-Benz E-Class?
1 Answers
The Mercedes-Benz E-Class has a black flat panel next to the sunroof, which features a specially designed rain collection channel. This channel is equipped with dedicated sunroof drainage outlets. When rainwater enters the collection channel, it flows out through these drainage outlets and exits via the drain pipes. If the sunroof drainage outlets become clogged, rainwater cannot be discharged, causing the collection channel to overflow and allowing water to enter the vehicle interior. Below is an introduction to common sunroof leakage issues: 1. Accumulation of dust and debris in the sunroof track: When the sunroof drain pipes are blocked and rainfall is excessive, water cannot drain properly and may seep through the sunroof's waterproof seal into the vehicle's headliner. This issue can typically be resolved by using a thin wire to unclog the drain pipes. 2. Deformation of the sunroof sliding guide rails: Rail deformation usually occurs due to obstructed movement, where the motor forcibly moves the components back and forth, causing stretching and deformation. This results in improper sealing of the sunroof glass, allowing rainwater to enter the cabin. If separate rail components are not available, the entire sunroof frame assembly may need replacement. 3. Broken sunroof lift arms: When the sunroof is slid forward and closed, broken lift arms prevent it from rising to align flush with the roof, creating a depression where rainwater can leak in along the edges. This also requires replacement of the entire frame assembly for resolution. 4. Aging of the sunroof waterproof seal: Particularly in vehicles over 10 years old, deteriorated seals fail to create a tight seal with the roof, allowing rainwater to seep into the cabin through gaps.
