Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Multi-function steering wheel: General description
Function description:
Six function buttons are integrated into the steering wheel for better operation of the radio system. In addition, the multi-function steering wheel is electrically heated (optional).
The electronics integrated in the steering wheel take over the transmission of the six function buttons to CAN-bus and dimming of the function buttons. On vehicles with automatic transmission, 2 additional buttons can be installed for Tiptronic shifting function. The electronics in the steering wheel cannot be replaced individually, the entire steering wheel must be replaced in case of a fault.
The multi-function steering wheel is part of the complete system "switch module-steering column (SMSC) and transmits its data to the Steering Column Electronic Systems Control Module -J527-.
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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.