Steering Column

The upper steering column with crash element can be compressed telescopically by 70 mm when the steering column is subject to load in the event of a crash. This telescopic action is controlled by a crash element made of fiber glass reinforced plastic. See Fig 1

Fig 1: Identifying Steering Column Components

Courtesy of BMW OF NORTH AMERICA, INC.

The compression movement begins when the three plastic pins shear under an axial force of approximately 3 kN. The telescopic adjustment splines inter-slide allowing compression when the crash element is deformed over a defined length (at a force of 3 to 7 kN). See Fig 2.

Fig 2: Crash Element Components

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Never disassemble the steering column to perform repairs on the crash element! In the event of a defect (particularly a crash), replace the entire steering column. See Fig 3 and Fig 4 .

Fig 3: Identifying Crash Element (Before)

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 4: Identifying Crash Element (After)

Courtesy of BMW OF NORTH AMERICA, INC.

Always set the steering wheel in the straight ahead position before removal/installation. Remove/install the steering column switch center (SZL) in the straight ahead position, also observe the marking on the locking tooth when installing the steering wheel.