Service bulletin LI82.70-P-079903

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

NHTSA's summary

Complaint Noise interference when using the hands-free system (phone call). Cause The noise is caused by electromagnetic interference (EMC fault) affecting the microphone lines and thus impacting voice quality. The severity of these faults may vary depending on the vehicle. Remedy To avoid EMC-related interference noise, the SOS microphone line is no longer routed through the rear-installed head unit (A26/17) but is instead routed directly from the new double microphone to the telematics control unit (N112/9). The work instruction for implementation is attached to this document and must be completed in full. Operation steps from the attachment: • Slide 6: De-pin pins 19 and 6 from plug A at the head unit (A26/17), insulate and strap down. These lines are no longer needed. • Slide 7: Replace the front left microphone with the double microphone (A213 820 2801) (AR82.70-P-8969XG). Info: The installation location of the double microphone is always at the front left. There is no difference here between the right-hand drive or left-hand drive versions. • Slide 9: Pin the double microphone wiring harness at connector X58/3X1 at pin 1 (white) and pin 14 (shield). • Slide 10: De-pin the Hermes wiring harness at connector X58/3X1 pin 1 (black line) and pin the white line in its place. Connect to pin 14 (brown line). Insulate the black line and tie it back. • Slide 15: De-pin and strap down the existing lines at connector 1 on the HERMES (N112/9) from pin 29 (brown), pin 30 (white), and pin 31 (black). • Slide 16: Insert the brown line of the new wiring harness at pin 29 and the white wire at pin 30. Connect the shield (black line) to pin 31. After completion, please document following FO text in VeDoc: "Conversion to double microphone (A213 820 28 01) carried out as per LI82.70-P-079903."

The document

• NHTSA's copy of the document (PDF)
• If that address does not open, try this one

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system

Listing a model year does not mean every vehicle of it is concerned: the document says which.

• Bulletins for another vehicle
• Report an error on this page
• Report an error by email