This sensor basically measures the pressure acting on the roof panel, specifically when the roof is moving – either opening or closing, or even just when it’s subjected to wind load while driving. It's sending information to the vehicle’s computer about how much force is being applied. It doesn’t do the moving, it just reports on it. Its main job is to work with the roof control module. That module uses the information from this sensor—along with signals from other sensors—to determine if the roof is operating smoothly and safely. If the sensor detects something’s off—like too much resistance while closing, or the roof isn't latching properly—it tells the control module to stop the movement. It acts like a shield, preventing the roof mechanism from forcing something when it shouldn’t. You’ll notice if this thing goes bad pretty quickly. Usually, it manifests as the roof not operating at all, or getting stuck mid – cycle. Sometimes, it might work intermittently. Ignoring it can lead to bigger problems, like damaging the roof motor or the entire roof assembly, which is a very expensive repair. A faulty sensor can also create a situation where the roof seems to be working, but isn't fully latched, and that can be a real issue at highway speeds. You can find these sensors easily enough online, Fixparts Online has a good selection, and honestly replacing it yourself is often much cheaper than taking it to a shop. Quality assurance: Pressure Sensor (MPN 8T8877695) comes with a 12-month warranty!

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