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Replacing the Thermostat on the Alfa Romeo 159 1.9 JTDM

Model: Alfa Romeo 159 MK 1 - Years 2005-2011
Part: Thermostat

In this video, we will see the main steps to remove and replace the thermostat on the Alfa Romeo 159, with a 1.9 JTDM engine. First, drain the coolant or antifreeze by disconnecting the hose from the bottom of the car; then open the bonnet and remove the plastic cover and the battery, disconnecting the terminals. At this point, unscrew the fixing screws of the thermostat pipe; disconnect the electrical connector of the sensor and the coolant hoses, replacing and reassembling everything!

Updated on 24 April 2026 by ScegliAuto

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