Electrical - Horns Too Quiet, Inoperative, Or Has Poor Sound Horn sound issues

Mercedes-Benz Mercedes Benz OEM Parts Mercedes Benz OE Replacement PartsTechnical Service Bulletin # LI54-35_P-053444 Date: 120907
Electrical - Horns Too Quiet, Inoperative, Or Has Poor Sound
Horn sound issues
Topic number LI54.35-P-053444
Version 2
2010 Mercedes Benz E 550 Sedan (212.072) V8-5.5L (273.971)   Page 39
Design group 54.35 Signaling system
Date 09-07-2012
Validity 204 Bremen production up to August 2011 VIN 204.... F775666
204 South Africa production up to August 2011 VIN 204 ... R193863
204 Sindelfingen production up to December 2011 YoM 802 +052
212 up to YoM 802 + 052
218 up to YoM 802 + 052
Reason for change Damage code revised
Complaint:
Horns too quiet, inoperative or have poor sound
Cause:
Flat plug on horn broken off
Remedy:
Replace problem horn with new horn with 2-pin plug contact
Symptoms
Part