050 121 113 C : Thermostat 87/102°C for Audi A4 (B6)

This dual-opening thermostat (87/102°C) is designed to replace a worn, stuck or faulty original thermostat on the Audi A4 (B6) equipped with the 1.6 102 bhp engine (engine code ALZ). It regulates the circulation of coolant between the engine and radiator, ensuring optimal temperature rise and stable thermal management. As part of the restoration or maintenance of a classic vehicle, replacing this component helps preserve the integrity of the cooling circuit over the long term. An essential new part to keep this engine in its original operating conditions.