Ruído do vento

501-25-87 Body Repairs - General Information 501-25-87 DESCRIPTION AND OPERATION ‡ Seals must be correctly installed. Special attention must be paid at corners -arrow- that the installation follows the contours. ‡ The seal must not show any kinks or folds or any other damage. ‡ Seals must seal all around their circumference. Gaps in seals result in openings which lead to an increased incidence of noise. In this respect, it is especially important to pay attention to the seals in the area of the windows. Remedial Action Renew older seals which no longer have adequate preload. Deformed or widened retaining flanges must be reworked and provided with a new seal. TIZ0121069 The corner areas -arrow- of a seal must be properly seated. In some circumstances, a butyl sealing strip must be affixed to support the sealing at a corner. Bonded joints Glass is usually installed today using a bonded joint. Gaps in the bonded joint can lead to noises in the vehicle interior. If there are noises which are believed to be associated with window glass, the following points should be checked: Gap in window bonding E62115 ‡ The window must be bonded without any gaps -arrow-. Leaks can be found using the ultrasonic tester or compressed air carefully blown from inside onto the window glass bonding. ‡ The installed position of the window glass must be correct. It must not have been bonded into a position which is too low or offset to one side. ‡ The sealing or trim strips must fit tightly and the glass must be mounted so that it is fully enclosed. If a sealing or trim strip has not been applied with enough pressure, high air speeds can cause it to lift up. This can lead to wind noises at higher speeds. Apply masking tape to these areas for test purposes. Corrective measures Leaking areas of the window glass bonding material can be sealed using PU sealing compound. Pay special attention at the front windshield, that any breaks in the bonding are not too large. Otherwise the glass must be removed and bonded in place again. The installed location of a window glass cannot be corrected. It must be removed and bonded into place again. Replace the trim strips or secure the lip seal using PU adhesive. Gaps, edges Door gaps and edges are places where air turbulence can form. This causes noises which can be perceived as troublesome. Gaps and edges - problem areas TIZ0221262 Doors, hood and tailgate can cause wind noises because of gaps -arrow- which are too large. If the components are not installed flush to the bodywork or the neighboring component, air break edges can arise, which in turn can create a wind noise.