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 Input Control Module J507 , removing and installing
- If control module is replaced, select "Replacement" function for appropriate control module in "Guided Fault-Finding" routine.
Use the Vehicle Diagnosis, Testing and Information System VAS 5051 to do so.
- Switch off all electrical components.
- Switch off ignition and remove ignition key.
Removing
- Remove Radio R → Radio R , removing and installing .
- Open cover - 2 - of Radio R and fold it downward - arrow -.
- Carefully pull Speech Input Control Module J507 - 1 - out of Radio R in - direction of arrow -.
Installing
- Install in reverse order.
- Make sure that harness connector between Speech Input Control Module J507 and Radio R engages correctly in Radio R.
Perform the following function test:
- Switch on Radio R.
- Press PTT button briefly on multi-function steering wheel.
A "ping" tone sounds, the speech dialog system is active.
- Speak the command "Help"
Since the Radio R is active, the speech dialog system responds with "Radio commands are...".
Can be switched to other sources, depending on equipment:
- If a telephone is installed, say "Telephone".
The speech dialog system changes to Telephone mode.
- Press the PPT button for approx. 1 second.
The speech dialog system responds with "Cancel" and is deactivated.
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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.