Installing the steering column switch cluster (SZL)

2021 BMW 740iSECTION Installing the steering column switch cluster (SZL)
  • For replacement:  Break off the transportation retainer (1) on the steering column switch cluster (SZL) (2) in arrow direction.

    The fragment (3) of the transportation retainer (1) remains in the steering column switch cluster (SZL) (2).

    G12668149Courtesy of BMW OF NORTH AMERICA, INC.
  • Connect the connector (1) with the steering column switch cluster (SZL) (2).
G11110116Courtesy of BMW OF NORTH AMERICA, INC.

Check the neutral position of the coil spring 

NOTE: TECHNICAL INFORMATION 
Different variants may be installed depending on the vehicle equipment.

Version A: Checking the visibility of the mark on the coil spring 

Check 

  • Check the visibility of the mark (1) on the coil spring in the inspection glass (2).
G15135862Courtesy of BMW OF NORTH AMERICA, INC.

Result 

» The mark (1) on the coil spring is not visible.

Measure

  • Turn the coil spring cassette until the mark (1) on the coil spring becomes visible in the inspection glass (2).

Variant B: Checking the visibility of the mark on the coil spring 

Check 

  • Check the visibility of the mark (1) on the coil spring in the inspection glass (2).
G12668152Courtesy of BMW OF NORTH AMERICA, INC.

Result 

» The mark (1) on the coil spring is not visible.

Measure

  • Turn the coil spring cassette until the mark (1) on the coil spring becomes visible in the inspection glass (2).
  • Position the steering column switch cluster (SZL) (2).
  • Tighten down screws (1).
TIGHTENING TORQUE SPECIFICATIONS

Steering column switch cluster (SZL) to steering column 
Screw TS5x20 Tightening torque  3 Nm
G12668147Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work 

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.