Install exhaust system
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2025 BMW X4, 2024 BMW X4, 2023 BMW X4, 2022 BMW X4, and 2021 BMW X4. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Component with heavy weight.
Injury hazard!
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.
Heavy components can lead to injury or damage.
- Remove and install heavy components with the aid of another person/other persons.
CAUTION:
Grinding dust from grinding of components.
Hazardous to health!
Hazardous to health!
- Directly draw off the grinding dust.
- Ensure adequate ventilation.
- Conduct all work in appropriate personal protective equipment only.
NOTE:
TECHNICAL INFORMATION
Check the exhaust system for tightness after installation.
Check the exhaust system for tightness after installation.
NOTE:
TECHNICAL INFORMATION
Mount the exhaust system in a de-energized state, following the tightening sequence from the rear silencer towards the exhaust manifold.
Mount the exhaust system in a de-energized state, following the tightening sequence from the rear silencer towards the exhaust manifold.
CAUTION:
Shavings resulting from sawing or grinding components.
Injury hazard!
Injury hazard!
- Conduct all work in appropriate personal protective equipment only.
- Wear safety goggles and hand protection.
- Version 1 (Ribbon clamp)
Open the weld seam (1) with a conventional tool.
- Remove ribbon clamp (2).
- Replace the (2) ribbon clamp.
Parts: Ribbon cable clamp
NOTE:
Schematic diagram is for example purposes. Some parts may differ in certain details.
- Check all rubber mounts (1) of the exhaust system for damage and replace, if necessary.
NOTE:
TECHNICAL INFORMATION
Conduct the following operation with the assistance of a second person.
Conduct the following operation with the assistance of a second person.
- Insert and install the exhaust system with the help of another person.
- Replace nut (1).
Parts: Nut
- Tighten nut (1).
TIGHTENING TORQUE SPECIFICATIONS
| Rear silencer to bumper bracket | ||
| M8 | Tightening torque | 19 Nm |
- Replace nut (1).
Parts: Nut
- Tighten nut (1).
TIGHTENING TORQUE SPECIFICATIONS
| Rear silencer to bumper bracket | ||
| M8 | Tightening torque | 19 Nm |
NOTE:
The following step(s) must be performed if the listed component(s) is/are installed.
- Replace the nut (1) on the rear axle support.
Parts: Nut
- Tighten nut (1).
TIGHTENING TORQUE SPECIFICATIONS
| Exhaust system to rear axle carrier | ||
| M8 Nut | Tightening torque | 19 Nm |
- Replace nut (1).
Parts: Nut
- Tighten nut (1).
TIGHTENING TORQUE SPECIFICATIONS
| Exhaust system to transmission | ||
| M8 | Tightening torque | 19 Nm |
- Tighten the ribbon clamp (1).
TIGHTENING TORQUE SPECIFICATIONS
| Exhaust system to catalytic converter | ||
| Ribbon clamp nut M8 Replace the ribbon clamp. |
Tightening torque | 26 Nm |
| Ribbon clamp nut M10 Replace the ribbon clamp. |
Tightening torque | 55 Nm |
- Version 2 (V-band clamp)
Replace V-band clamp.
Parts: V-band clamp
Unscrew the nut (1) and remove the sealing ring (2).
- Bend all the sheet metal tabs, except those in the marked area, all around using a suitable tool.
- Mount the V-clip (1) on the sealing ring (2).
- Make sure that the V-ribbon clip is (1) correctly positioned on the sealing ring (2).
- Make sure that, after mounting, the V-ribbon clip is on the sheet metal tabs in the marked areas.
- Connect the exhaust system (1) with the catalytic converter (2) and position it correctly (arrow).
- Make sure that V-clip (1) is fitted correctly.
- Tighten down screw (2).
TIGHTENING TORQUE SPECIFICATIONS
| V-ribbon clip to catalytic converter | ||
| V-ribbon clip Replace V-ribbon clip. |
Tightening torque | 25 Nm |
NOTE:
The following step(s) must be performed if the listed component(s) is/are installed.
- Connect and lock the connector (1).
The connector (1) must lock audibly.
- Mount cover.
- Tighten down screws (1).
TIGHTENING TORQUE SPECIFICATIONS
| Undershield | ||
| screw | Tightening torque | 2.6 Nm |
| Plastic nut | Tightening torque | 2.6 Nm |
If installed: Install right torsion strut
- Insert and install the torsion strut (3) on the right.
- Replace screws (2).
Parts: Screws
- Tighten down screws (2).
TIGHTENING TORQUE SPECIFICATIONS
| Torsion strut to mounting | ||
| M12 Replace screws. |
Tightening torque | 100 Nm |
| Angle of rotation | 90° | |
- Tighten nut (1).
TIGHTENING TORQUE SPECIFICATIONS
| Torsion strut to compression strut | ||
| M8 | Tightening torque | 28 Nm |
Follow-up work
- Refer to INSTALLING THE CONNECTING SUPPORTS ON THE TUNNEL .
- Refer to INSTALLING TANK COVER ON LEFT AND RIGHT .