Coolant Temperature Sensor, Remove and Install
 Remove, Disconnect For 16 LZ2: see operation "Coolant Temperature Sensor, Remove and Install" in "Engine Management System Motronic M 1.5.4". Remove lower coolant hose from radiator. Collect escaping coolant. Remove air intake hose and air intake cover - see illustration "Air Cleaner Housing, Air Flow Guide (X 16 SZR)". Disconnect wiring harness plug (1) from coolant temperature sensor. Remove coolant temperature sensor (2) from intake manifold.
 Install, Connect Install coolant temperature sensor with new seal ring in intake manifold - tightening torque 20 Nm / 15 lbf. ft. Connect wiring harness plug to coolant temperature sensor. | 
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Notice: Before assembling components of the intake system (hoses, connections, etc.), they must be cleaned of any possible contamination (grease, oil, etc.). When tightening the hose clamps, be sure to observe exactly the tightening torque of 3.5 Nm / 2.6 lbf. ft.
 Important! It is only ensured that the intake system is free of leaks, thus ensuring operational safety of the engine, if the hose clamps are tightened correctly to the prescribed tightening torque.
Install, Connect Install air intake hose and air intake cover - see illustration "Air Cleaner Housing, Air Duct (X 16 SZR)". Install lower coolant hose on radiator. Top up cooling system - see operations "Cooling System, Top up and Bleed" and "Cooling System, Check for Leaks".
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