What Are the Causes of Sunroof Noise in the Mistra?
4 Answers
The causes of sunroof noise in the Mistra: 1. Aging of the sunroof rubber seal or sealing ring; 2. Loose sunroof screws; 3. Dust particles in the sunroof sliding track. Solutions for sunroof noise: Wipe the sliding track with cotton cloth or gauze, then apply a small amount of grease to the track. The Mistra is a mid-size sedan from Beijing Hyundai, with dimensions of 4710mm in length, 1820mm in width, and 1470mm in height, and a wheelbase of 2770mm. In terms of exterior design, the Mistra further develops the Fluidic Sculpture design language, particularly with a wide grille bar design similar to that of the Santa Fe, equipped with projector headlights and decorated with frosted silver and chrome lines inside the headlights.
Recently when driving my Mistra on bumpy roads, I noticed a constant creaking noise from the sunroof. After some troubleshooting, I figured out the issue. It's most likely due to either a loose roof frame or aged/deformed sealing strips causing plastic parts to rub and squeak. The problem worsens when sand or leaves get stuck in the seals - even slight vibrations trigger constant noise. The most annoying issue involves the sliding mechanism - rusted/deformed metal guides or dried-out track lubrication make operation rough, sounding like metal grinding each time it opens/closes. The mechanic at the shop mentioned loose screws are also common, especially for vehicles frequently driven on rough roads. He recommended regular application of specialized lubricant on the tracks and cleaning the seals, with complete adjustment or seal replacement as last resorts.
I've encountered quite a few cases of sunroof rattling in Mistra vehicles during repairs. Simply push upward on the sunroof glass with your hand - if there's wobbling or the noise reappears when pressed, it's usually due to loose fastening screws or deformed brackets. Also check around the sunroof drainage outlets, as debris stuck in track gaps can cause mechanical friction noises. Some cars haven't had old grease cleaned from sliding channels during maintenance, and over time the dried, caked grease can also create squeaking sounds. Especially during rainy seasons, check if drainage pipes are clogged - accumulated water seeping into mechanical components accelerates rust corrosion and noise generation. When parking normally, avoid leaving the car on slopes as frame distortion can compress the sunroof framework causing friction point displacement.
For sunroof rattling, try these DIY fixes first: Open the sunroof fully and use a soft brush to thoroughly clean the guide rail grooves, removing sand and leaves. Then wipe the rubber seal folds with a damp cloth to remove dirt, followed by applying rubber protectant spray to restore elasticity. Apply specialized white grease to the guide rails—avoid using regular grease as it attracts dust. If the sealing rubber noticeably rubs against the roof when closing, applying a loop of felt tape can reduce friction noise. If the rattling comes from the rear, it's likely due to loose headliner clips; you'll need to remove and tighten the headliner. These steps take just 10 minutes for initial troubleshooting.
