Installing the catalytic converter near engine, bottom at bank 1

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2023 BMW M5, 2022 BMW M5, 2021 BMW M5, 2020 BMW M5, and 2019 BMW M5. However, it is still accessible from the selected car via links, so may be relevant.

Thread in the catalytic converter (3) toward the top.
Position the catalytic converter (3) at the stud bolts (1).
Tighten nuts (2).

TIGHTENING TORQUES SPECIFICATION

Bottom catalytic converter
Nut M8 Replace nuts.	tightening torque	23 Nm

Courtesy of BMW OF NORTH AMERICA, INC.

Replace V-band clamp.

Parts: V-band clamp

Replace gasket.

Parts: Seal

Slide the V-clip (2) towards the bottom onto the catalytic converter near engine.
Position the V-ribbon clip on the catalytic converter near the engine.
Tighten down screw (1).

TIGHTENING TORQUES SPECIFICATION

Top catalytic converter to bottom catalytic converter
V-band clamp Replace V-band clamp.	Tightening torque	14 Nm

Courtesy of BMW OF NORTH AMERICA, INC.

Variant with gasoline particulate filter cylinder 1 through 4

Guide in the differential pressure sensor upwards with the pressure line.
Clip the pressure line (2) into the clamps (1).

Courtesy of BMW OF NORTH AMERICA, INC.

Clip the differential pressure sensor (2) with the pressure pipe into the clamps (1).

Courtesy of BMW OF NORTH AMERICA, INC.

Tighten nut (2).

TIGHTENING TORQUES SPECIFICATION

Differential pressure sensor to holder
Nut M5	tightening torque	5.5 Nm

Connect connectors (1) and lock.

Courtesy of BMW OF NORTH AMERICA, INC.

Grease the thread on the exhaust system with high-temperature assembly paste.

CONSUMABLE SPECIFICATION

High-temperature	10 g,	83230309003
assembly paste	Tube

Tighten nut (1).

TIGHTENING TORQUES SPECIFICATION

Pressure line on catalytic converter
Pressure line	Tightening torque	40 Nm

Courtesy of BMW OF NORTH AMERICA, INC.

Fastening the prop shaft (partially removed)

Check centering (1) for damage and replace if necessary.

Courtesy of BMW OF NORTH AMERICA, INC.

Apply a thin coat of grease to the soft centering (1), if necessary.

The hard centering (2) must not be greased.

CONSUMABLE SPECIFICATION

Lubricating grease	100 g,	83 19 0 447
Olistamoly 2 LN 584 LO	Tube	919

Courtesy of BMW OF NORTH AMERICA, INC.

Replace the screws and the self-locking nuts.

Parts: Screws, self-locking nuts

Assemble the screw connections (1) of the flexible disc (2) and the three-hole flange (3) according to the self-affixed identification.

This should prevent a humming noise from the drive train during driving.

Courtesy of BMW OF NORTH AMERICA, INC.

Hand-tighten screws and nuts (arrows), but do not tighten fully.

Courtesy of BMW OF NORTH AMERICA, INC.

Install central mount (1) into the transmission tunnel with the designation TOPPING facing upwards.

Courtesy of BMW OF NORTH AMERICA, INC.

Position central mount.
Hand-tighten the bolts (1), but do not tighten fully.

Courtesy of BMW OF NORTH AMERICA, INC.

Replace screws.

Parts: Screws

Counter-hold the screws of the flexible disc on the nut and tighten with the screws.

Courtesy of BMW OF NORTH AMERICA, INC.

TIGHTENING TORQUES SPECIFICATION

Front flexible disc to prop shaft
M12 Replace screws. Joining torque and angle rotation must be adhered to. Tightening via screw.	Joining torque Angle of rotation	55 Nm 90°

Secure the special tool 0 490 504 (00 9 120) with the special tool 0 495 108 (00 9 130) on the vehicle underbody and continue to screw it in according to the angle of rotation.
Tighten down screws (1).

TIGHTENING TORQUES SPECIFICATION

Central mount to body
M8	Tightening torque	19 Nm

Courtesy of BMW OF NORTH AMERICA, INC.

Installing transmission cross member .

Install the transmission cross member (2).
Tighten down screws (1).

TIGHTENING TORQUES SPECIFICATION

Transmission cross member to body
M8	tightening torque	19 Nm

Courtesy of BMW OF NORTH AMERICA, INC.

Release the luggage strap (1) from the transmission.

Courtesy of BMW OF NORTH AMERICA, INC.

Remove the special tools 2 219 012 and 0 495 498 (23 4 050) .

Installing the heat shields

Install heat shield (1).
Tighten nuts and screws (arrows).

TIGHTENING TORQUES SPECIFICATION

Heat shield to underbody
Screws and nuts	Tightening torque	3 Nm

Courtesy of BMW OF NORTH AMERICA, INC.

Install heat shield (1).
Tighten nuts and screws (arrows).

TIGHTENING TORQUES SPECIFICATION

Heat shield to underbody
Screws and nuts	Tightening torque	3 Nm

Courtesy of BMW OF NORTH AMERICA, INC.

Install the stiffening plate

Insert the thrust field (3) on the covers of the steering assembly (2) and position.
Replace the bolts (arrows).

Parts: Screws

Tighten screws (arrows).

TIGHTENING TORQUES SPECIFICATION

Thrust field to front axle support
M8 Replace screws.	Joining torque Angle of rotation	25 Nm 70°

Courtesy of BMW OF NORTH AMERICA, INC.

Tighten down screws (1).

TIGHTENING TORQUES SPECIFICATION

Underbody protection
screw	Tightening torque	3 Nm

NOTE: The operations shown only for one side must be carried out on both sides.

Insert the undershield (1).
Tighten all bolts and nuts (arrows).

Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work

Refer to INSTALLING HEAT SHIELD, TOP .

Installing conduit on bank 2

Courtesy of BMW OF NORTH AMERICA, INC.

Clip the wiring harness (2) into the clamps (1).

Courtesy of BMW OF NORTH AMERICA, INC.

Position the wiring harness.

Tighten down screws (1).

TIGHTENING TORQUES

Cable duct
M6x16 screw	Tightening torque	10Nm

Installing cable duct at cylinder bank 1.

Courtesy of BMW OF NORTH AMERICA, INC.

Position the conduit (2).
Tighten the screws (1).

TIGHTENING TORQUES

Cable duct
M6x16 screw	Tightening torque	10Nm

Refer to INSTALLING THE OXYGEN SENSOR MONITOR OF CYLINDER BANK 1 .
Refer to CHECKING THE POSITION OF THE HEAT SHIELD .
Refer to INSTALLING THE EXPANSION TANK FOR THE CHARGE AIR COOLER .
Refer to INSTALLING COOLANT EXPANSION TANK .
Refer to INSTALLING HOLDER OF THE DME CONTROL UNIT FOR CYLINDERS 5 TO 8 .
Refer to INSTALLING THE LAMBDA OXYGEN SENSOR FOR THE CYLINDERS 5 TO 8 .
Refer to INSTALLING THE LAMBDA OXYGEN SENSOR FOR THE CYLINDERS 1 TO 4 .
Refer to INSTALLING ACOUSTIC COVER .
Refer to INSTALLING THE COVER PANEL OF THE SLAVE DME CONTROL UNIT .
Installing the cover panel of the master DME control unit.

Courtesy of BMW OF NORTH AMERICA, INC.
- Position the cover of the master DME control unit (1)
- Engage the cover panel of the master DME control unit (1) downwards with the clamps (2) and the guide pins (3) in the carrier plate of the DME.
Refer to INSTALLING THE CENTER COWL UPPER PART .
Refer to INSTALLING TENSION STRUT ON SHOCK TOWER .
Refer to INSTALLING WINDSHIELD PANEL COVER .
Refer to INSTALLING LEFT AND RIGHT WIPER ARM .
Installing the rear right engine compartment cover.

Courtesy of BMW OF NORTH AMERICA, INC.

Remove the battery cover .

NOTE: The following step(s) must be performed if the listed component(s) is/are installed.
- Remove the special tool 2 452 007 from the battery.
Courtesy of BMW OF NORTH AMERICA, INC.
- Install the cover (2).
- Lock the lock (1).
Refer to INSTALLING THE COVER OF THE ENGINE COMPARTMENT ON THE REAR LEFT .
Refer to INSTALLING EXHAUST SYSTEM .

Installing the rear tunnel connecting support.

Courtesy of BMW OF NORTH AMERICA, INC.

Position the connecting support (3) on the rear of the tunnel.

Tighten the screws (1).

TIGHTENING TORQUES

Rear connecting support tunnel to body
M8x30	Snug torque Angle of rotation	28Nm 90°

Tighten screws (2).

TIGHTENING TORQUES

Undershield
Hexagon screw	tightening torque	2.6Nm
Plastic nut	tightening torque	2.6Nm

Refer to INSTALLING THE REINFORCEMENT STRUT .
Refer to INSTALLING UNDERSHIELD ON THE FUEL TANK ON THE RIGHT .
Removing the undershield on the left fuel tank.

Courtesy of BMW OF NORTH AMERICA, INC.
- Loosen screws (1).
Courtesy of BMW OF NORTH AMERICA, INC.
- Loosen screws (2).
- Remove the undershield (1) at the fuel tank on the left.
Refer to INSTALLING THE REAR DIFFUSER .
Refer to CONNECTING BATTERY GROUND LEAD .