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.
Speech Processing System Control Unit
The SVS control unit is part of the MOST network. It is a slave component that has no network management responsibilities. The SVS control unit is responsible for recognizing the customer's speech and processing it into a command that is sent out over the MOST.
The SVS control unit is located in the left rear corner of the luggage compartment.
The SVS control unit has one 12 pin ELO connector that supplies KL 30, KL 31 and the two MOST connections.
The remainder of the components needed for the operation of the system are:
- Push-to-talk switch (part of MFL/SZL)
- Microphone (hardwired to telephone control unit)
- Audio output (generated by ASK)
- Instrument cluster for visual display of selected menus and functions.
The SVS control unit is diagnosable by the Diagnostic Program via the MOST network.
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.