The Audi TT Door Lock Cylinder is a mechanical device to lock and unlock the front door. The driver can insert the vehicle key and turn the key to operate the lock. The cylinder, which is located in the outer door skin, aligns internal tumblers with the cuts on the key. This, in turn, moves a small cam that operates the latch that secures the door. This solely mechanical connection allows instant access to the cabin or reliable closure without electronic means. A large number of road vehicles still use such equipment, and the Audi system uses the same. On the TT model, the hardware remains simple and purely mechanical, consistent with the original Audi locking design. Repeated exposure of the moving parts to friction may cause them to wear out faster than more stable components of the latch assembly. When wear develops and turning effort increases, the key may not turn or may get stuck in the keyway. When you notice these symptoms, it means the tumblers inside the Door Lock Cylinder are not properly sized anymore or the cam surfaces are distorted. This application is available in only one general style, which features a metal body, precision tumblers, and a cam geared to the door latch rod. When in great condition, the Door Lock Cylinder allows the Audi cabin to be locked with minimal pressure. If it continues to get worse, then it can obstruct easy access to your Audi vehicle and alert the user that the TT door mechanism requires attention. The Door Lock Cylinder should be replaced when it becomes degraded. It causes the key to jam and should be serviced at the early.
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