Prepare the spring tensioner

WARNING: This page is about a different car, the 2025 BMW M4, 2024 BMW M4, 2023 BMW M4, 2022 BMW M4, and 2021 BMW M4. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: RISK OF DAMAGE
Damage of the coil spring.
Any use of faulty protective inserts leads to coil spring damage. Faulty protective inserts may lead to a cracked coil spring (corrosion).

Check the protective insert for wear or damage and if necessary, replace the protective inserts.

Mount special tool 2 364 829 on special tool 5 AOB 7E2 .
Prepare special tool 5 AOB 7E2 2x and use it only with the protective insert!

Courtesy of BMW OF NORTH AMERICA, INC.
Clamp special tool 2 213 022 (31 3 340) in the vice.
Position special tools 5 AOB 7E2 from above on special tool 2 213 022 (31 3 340) until you feel and hear the retaining bolts engage.
Check the position of special tools 5 AOB 7E2 and, if necessary, correct it.

Courtesy of BMW OF NORTH AMERICA, INC.
Adjust the special tool 2 213 022 (31 3 340) to dimension (A) .
Dimension (A) = 67 mm

Courtesy of BMW OF NORTH AMERICA, INC.