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A sunroof or moonroof can be a nice feature in a car. Not all car owners like them, but about 35% of new premium vehicles manufactured worldwide have sunroofs circular insightThis shows that many car owners value the aesthetic and ventilation benefits of a tilting, sliding lid. Still, whether you like using them or not, sunroofs require diligent maintenance to function without malfunctions or leaks.
If your vehicle has a sunroof and you don’t remember the last time you used it, take note. The sunroof is exposed to wind, sunlight, rain, snow and the dirt, debris, leaves and particles that come with the weather. Although the glass or metal assembly adheres to the roof when closed, it does not form a 100% watertight seal with the actual roof. That’s why sunroofs have rubberized seals around the edges and drainage channels around the assembly. Water or moisture that gets past the first seal should be drained into a drainage system to ensure that the interior does not get wet.
Although subtle and without any early symptoms, there are some signs that a sunroof is about to leak. A bad or burned-out motor can cause the sunroof to become immobile, causing it to operate intermittently, or cause it to not sit flush with the roof. Broken or broken glass can also cause a leak. Dried seals can block drainage channels causing excess water to seep through. And if you open the sunroof and find water pooled in the front channels, you’re probably dealing with clogged drains, and ignoring the problem could leave your wallet empty due to potential damage. This is why regular inspections are important to prevent bad sunroof leaks.
Sunroof leaks are easy to prevent
Preventative maintenance will keep any part of your car in optimal performance. That’s why oil changes every 5,000 to 10,000 miles (depending on the vehicle) and flushing your automatic-transmission fluid every 30,000 to 60,000 miles (or sooner if the fluid has turned black) are usually recommended to keep everything humming along like clockwork. And while sunroof maintenance isn’t typically scheduled in the owner’s manual, inspecting and cleaning the drain tubes at least twice a year can prevent leaks.
Open the sunroof completely and take a look around its drainage channels. It will likely be dirty and would benefit from a light cleaning. Not using it frequently or neglecting periodic inspection will clog drains and cause the rubber seals to wear prematurely. Remove any dirt, leaves or debris from the water channels by picking up or using a vacuum cleaner. Take a wet towel to clean everything. Use cleaners and conditioners like 303 rubber seal protector To rejuvenate and protect sunroof weatherstripping. Also, lubricate the sunroof track WD-40 Expert Silicone Or a similar product for added protection.
Use a soft wire or weed-resistant string about 6 to 8 feet long Viabrico To unclog sunroof drains. You can test the drainage system by taking a cup of water and pouring its contents into the water channel. Water should flow efficiently through the holes on the left and right sides of the assembly. If not, water can enter the cabin and cause wet carpet (which can lead to mildew if left unchecked), damp ceiling, loose interior trim and malfunctioning electrical faults.
How to recalibrate a faulty sunroof
A sunroof that slides inches by inches or doesn’t open or close completely when you press a button is a nightmare, especially when it suddenly rains while you’re driving. Many times the glass panes refuse to rise up and close with the roof, causing wind noise and even annoying water leakage. If the sunroof moves but doesn’t fully deploy, it may need recalibration or basic relearning of the system.
The steps to recalibrate the sunroof depend on the make and model of the vehicle. To recalibrate the sunroof electronic control unit and motor on some Honda cars and SUVs, turn on the ignition, press and hold the Auto Open button for an additional three seconds after the roof is fully open, and repeat the steps while closing the sunroof. Similarly, the recalibration process for the Mitsubishi sunroof involves fully opening, closing, and tilting the sunroof, and holding the tilt button for approximately three seconds while the glass panel is in the tilt position. The motor will confirm calibration with a light clicking sound.
