Part description

This hands-free microphone serves as a voice input sensor for calling via Bluetooth / hands-free system in the car. If the original microphone is not working or has poor sensitivity, this can be manifested by the other party not being able to hear you, the voice being muffled, distorted or the transmission is interrupted. Thanks to this, it is a practical part for quickly restoring a functional handsfree without unnecessary intervention in other parts of the audio system.

Technical information

• Manufacturer: PSA (Citroën / Peugeot / DS)
• Model: not specified
• Other numbers: not specified

Product codes

• Product codes: 9812373180

Installation recommendations

• Please verify part number 9812373180 matches the original microphone before assembly.
• It is recommended to carry out assembly with the battery disconnected (due to wiring and connectors).
• Check the condition of the connector and wiring – a loose contact often causes dropouts or noise.
• After installation, test the handsfree with a call and, if necessary, check the volume/microphone settings in the infotainment.

Reasons why the part is damaged

• Mechanical damage during disassembly of interior parts (ceiling, covers, pillars).
• Moisture and condensation in the interior, which can cause oxidation of the contacts.
• Loose or dirty connector, possibly damaged wiring.
• Aging of the component and gradual loss of microphone sensitivity.

This handsfree microphone is a direct-fit interior microphone designed for Citroën, Peugeot and DS models. It restores clear voice pick-up for Bluetooth phone calls and voice commands, making it an essential replacement part for workshops and experienced DIYers. Compatible with popular OEM part numbers, this microphone improves call intelligibility and reduces background noise when installed correctly.

Function And Typical Location

The microphone captures the driver’s voice for the vehicle’s handsfree and voice recognition systems. It is typically mounted in the overhead console/headliner area, often integrated with the interior light unit or sunroof console. Connection is via a small multi-pin plug into the vehicle wiring harness.

Compatibility

Compatible with selected Citroën, Peugeot and DS models, including (but not limited to):

• Citroën C-Elysée
• Citroën C3 Picasso
• Citroën C4 II / C4 Picasso
• DS4
• Peugeot 301
• Peugeot 308 (including T9)
• Peugeot 3008 I
• Peugeot 5008 I

Technical Information

• Manufacturer: Stellantis (Citroën / Peugeot / DS)
• Model: Microphone For Handsfree Systems
• Product Codes: 9656164180; 9812377180; 9812373180; 6563HS
• Other Numbers: 6563.HS

Installation Recommendations

Recommended for fitment by professional technicians or skilled DIYers with appropriate trim tools. Typical replacement steps:

• Disconnect the battery and wait the manufacturer-recommended time before working near the roof area to avoid electrical short circuits and reduce the risk related to restraint systems.
• Carefully remove the overhead console or headliner trim using plastic trim tools to avoid damage.
• Unplug the microphone connector from the harness and note routing of the cable.
• Fit the new microphone, reconnect the plug securely and reassemble trim in reverse order.
• Verify correct operation by making a handsfree call and checking voice clarity and signal level. Inspect connector seating and cable routing for pinched wires.

Why This Part Most Commonly Fails

• Moisture Ingress: Water leaks or condensation can corrode contacts or damage the microphone element, causing muffled or no sound.
• Connector Corrosion Or Poor Contact: Oxidation or loose connectors lead to intermittent audio or dropouts.
• Physical Damage: Impact during removal/installation or from objects contacting the headliner can damage the unit.
• Aging And Foam Deterioration: Acoustic foam or mesh can degrade over time, reducing sensitivity and introducing noise.

Practical Notes For Mechanics

Search by OEM part number (e.g., 9656164180, 9812377180, 9812373180, 6563HS) to quickly locate the correct unit for a vehicle. When diagnosing poor call quality, check the microphone connector and wiring before replacing the part. Replacement is typically straightforward but requires careful trim removal to avoid damaging interior panels or airbags.