Installing the exhaust turbocharger (cylinder head removed)

WARNING: This page is about a different car, the 2022 BMW X7, 2021 BMW X7, 2020 BMW X7, and 2019 BMW X7. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: RISK OF DAMAGE
Damage of the electric wastegate valve controller .
Excessive force when removing and installing a jammed exhaust turbocharger may damage the electric wastegate valve controller .

Do not pull on the electrical wastegate valve controller or on the coupling rod.
Apply force only at the turbine housing and exhaust manifold.
Do not pull on the compressor housing.

Check screw-in depth (A) of the upper stud bolts (1).

TECHNICAL DATA SPECIFICATION

Screw-in depth of upper stud bolts on cylinder head
	Dimension A	30 mm

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NOTE: RISK OF DAMAGE
Damage to the surface .
The use of metal-cutting tools (e.g., emery cloths) for cleaning surfaces can damage them and lead to leaks and/or engine damage .

Do not use any metal-cutting tools.

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Clean the sealing surfaces (1) on the cylinder head using special tool 0 495 102 (11 4 470) .
Replace gaskets.
Parts: Seals

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Position the seals (1) on the cylinder head.
Make sure the seals (1) are positioned correctly.

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NOTE:
RISK OF DAMAGE
Damage to the surface .
The use of metal-cutting tools (e.g., emery cloths) for cleaning surfaces can damage them and lead to leaks and/or engine damage .
- Do not use any metal-cutting tools.
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Clean the sealing surfaces on the exhaust turbocharger (1) using special tool 0 495 102 (11 4 470) .
Insert and install the exhaust turbocharger (1).
Protect the exhaust turbocharger (1) from falling.

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When replacing nut (1), use the changed version of nut (2).

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Replace nuts (1).
Parts: Nuts
Insert the nuts (1).
NOTE: Insert nuts in 360 degree increments.

Tighten nuts (1).

TIGHTENING TORQUES SPECIFICATION

Exhaust turbocharger to cylinder head
M7 Replace nuts.	1. Snug torque	5 Nm
	2. Tightening torque	18 Nm
	3. Tightening torque	18 Nm

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Feed in and install the heat shield (2).
Replace screws (1).
Parts: Screws
Tighten down screws (1).

TIGHTENING TORQUES SPECIFICATION

Heat shield of exhaust turbocharger to cylinder head top
M8X12 Replace screws.	tightening torque	19 Nm

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