N55 ENGINE (2016-2018):

11 65 TURBOCHARGER AND CONTROL - TIGHTENING TORQUE SPECIFICATION

	Type	Thread	Tightening specification	Measure
1AZ Exhaust turbocharger to cylinder head	N55	M7	Replace flange nut.	13 Nm
2AZ Heat shield/retaining plate to crankcase top section	N55	M6 x 16		8 Nm
3AZ Pressure converter (EPDW) to cylinder head.	N55	M6 x 16		8.5 Nm
4AZ Pressure converter (EPDW) to holder with heat shield.	N55	M6 x 16		9 Nm
5AZ Vacuum unit (wastegate valve) to bracket	N55	M6		7 Nm
6AZ Lock nut to vacuum unit (wastegate valve) linkage	N55	M6		7 Nm
7AZ Bracket, vacuum unit (wastegate valve), to turbocharger	N55	M8		7 Nm
8AZ Holder to exhaust turbocharger.	N55	M8		20 Nm
9AZ Exhaust turbocharger holder to cylinder crankcase.	N55	M8	Replace microencapsulated screws	20 Nm

S55 ENGINE (2019-2022):

11 65 CHARGER WITH CONTROL - TIGHTENING TORQUE SPECIFICATION

	Type	Thread	Tightening specifications	Dimension
1AZ Exhaust turbocharger to cylinder head	S55	M7	Replace flange nut. See REPAIR INSTRUCTIONS .
			1. Joining 1 to 9/10	12 Nm
			2. Centering pin	90°
			3. Final torque 2 to 9/10	18 Nm
2AZ Heat shield/retaining plate to crankcase/cylinder head	S55	M6x16		10 Nm
3AZ Wastegate valve controller to exhaust turbocharger	S55	M4		2.5 Nm
4AZ Wastegate valve actuator linkage lock nut	S55		Replace adjusting and lock nut	6 Nm

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

11 65 Charger With Control