Installing torsion springs
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.
CAUTION:
Spring preload.
Injury hazard!
Injury hazard!
- The use of the specified special tool (tool) is mandatory.
- Carry out the described steps properly.
NOTE:
The description is provided only at one component. The procedure is the same for all other components.
- Position the torsion springs (3) on the special tool 2 249 160
.
The lug in area (1) must be positively locked with the torsion spring panel (3) .
The guide pins (2) in the special tool 2 249 160 must be positively locked with the recesses in the torsion spring panel (3) .
- Connect individual parts of the special tool 2 249 160 (3)
to (2)
and secure with the locking pin (1)
.
The locking pin (1) should audibly engage .
- Clamp special tool 2 249 160
in a standard vice at area (2)
.
- Use the lever (1) to push special tool 2 249 160 forward to pretension the torsion springs (3) .
- The retaining pins (5) should be secured to the detent (4) on both sides.
- Do not operate the release lever (2)
.
- Feed in the special tool 2 249 160 with the torsion spring.
- Position torsion springs in the intermediate levers on the cylinder head.
The ends of the torsion springs (1) must be located in the recesses of the intermediate lever (2) .
- Tighten screw at area (1)
on the torsion spring panel.TIGHTENING TORQUES SPECIFICATION
Torsion spring on cylinder head M6x20 screw tightening torque 10 Nm - The special tool 2 249 160 (2)
must be pre-tensioned.
- Press lever (1)
on the special tool 2 249 160
in the direction of the arrow until the detents (2)
release.
- Press the lever (1) on the special tool 2 249 160 forward to keep the torsion springs (3) tensioned.
- Pull lever (2) down to release the retaining pins (5) from the anti-twist locks (4) .
- Carefully release tension on the lever (1) on the special tool 2 249 160 .
- Remove the special tool 0 495 105 (11 4 480) .
- Repeat steps for all torsion springs.
Twist camshaft if necessary.