Some Volkswagen Tiguan owners report experiencing issues related to coolant hose bursts, which can lead to engine overheating due to sudden coolant loss. This loss disrupts the engine's cooling system, often caused by the breakage of the coolant hose pipe. Owners have noted that coolant hoses can burst due to factors like age, wear, corrosion, high pressure, mechanical damage, or improper clamping. It is crucial for owners to address a burst coolant hose promptly to prevent further engine damage and ensure the cooling system functions properly. In such situations, it is advised to stop driving the vehicle immediately and resolve the coolant issue to avoid potential engine damage.

Some Volkswagen Tiguan owners report experiencing issues with their panoramic sunroof being off track and not closing properly. These problems may be attributed to leaks that cause water accumulation in areas like the tray near the wind deflector and the footwell. Additionally, faulty drain tubes can lead to water leaking into the roof lining, resulting in condensation and unpleasant odors. In some instances, owners find that the sunroof may be failing, often leading to unnecessary complete replacements. Furthermore, improper installation of spider traps or end caps on the front sunroof drains can contribute to drainage issues. To resolve these concerns, it is advisable for owners to check for leaks, inspect drain tubes for proper function, seek professional diagnosis for potential sunroof failures, and verify the correct installation of drainage components.