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Home >> BMW >> 2021 >> X4 M Base >> Repair and Diagnosis >> Engine Mechanical >> Exhaust >> Exhaust System -- Repair (F98) >> 18 00 Exhaust System, Complete >> 18 00 018 Remove & install complete exhaust system >> Install exhaust system

Install exhaust system

CAUTION: Component with heavy weight. 
Injury hazard! 
  • Note component's center of gravity.
  • Support component using a jack.
  • Secure component against falling off the jack.
CAUTION: Heavy component. 
Heavy components can lead to injury or damage. 
  • Remove and install heavy components with the aid of another person/other persons.
NOTE: Schematic diagram is for example purposes. Some parts may differ in certain details.
G14925428Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUES SPECIFICATION

Rear silencer to body/bumper support
M8
Replace nuts.
Tightening torque  19 Nm
G14928302Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUES SPECIFICATION

Rear silencer to body/bumper support
M8
Replace nuts.
Tightening torque  19 Nm
G14928301Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUES SPECIFICATION

Exhaust system to rear axle carrier
M8 Nut
Replace nuts.
Tightening torque  19 Nm
G14928300Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUES SPECIFICATION

Front pipe/front silencer/gasoline particulate filter to the transmission holder
M8
Replace nut.
tightening torque  19 Nm
G14925426Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUES SPECIFICATION

Exhaust system on catalytic converters
M8
Replace nuts.
1. Tightening torque  5 Nm
2. Tightening torque  24 Nm
TIGHTENING TORQUES SPECIFICATION

Exhaust system to catalytic converters/intermediate pipe
M8
Replace nut.
1. Tightening torque  5 Nm
2. Tightening torque  24 Nm
G14925410Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUES SPECIFICATION

Exhaust system on the transmission cross member
M8x25
Replace screw.
Tightening torque  19 Nm
G14925411Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUES SPECIFICATION

Exhaust system on the transmission cross member
M8x25
Replace screw.
Tightening torque  19 Nm
G14925412Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: The following step(s) must be performed if the specified component(s) is/are installed.
CONSUMABLE SPECIFICATION

High-temperature assembly paste  10 g, Tube 83230309003
G14925413Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUES SPECIFICATION

Pressure line union nut
Pressure line union nut Tightening torque  40 Nm

Follow-up work