Mercedes Benz G550 Technical Service Bulletin #LI82-10_P-0517692 Lighting - Headlamp Unit Fogged/Droplets Forming Lamp unit fogged/droplets forming
Mercedes Benz G550 Technical Service Bulletin #LI82-10_P-0517692 Lighting - Headlamp Unit Fogged/Droplets Forming Lamp unit fogged/droplets forming Topic number LI82.10-P-051769 Version 2 Design group 82.10 Exterior lights Date 09-05-2012 Date: 1209052010 Mercedes Benz Truck G 550 (463.236) V8-5.5L (273.963) Validity All models Reason for change New repair method Page 14 Complaint Lamp unit fogged or droplets forming. Cause Due to the vent openings, the lamp unit is an "open system". This means that acidic gases, moisture, dirt and exhaust gases can penetrate it. This can result in deposits on the diffuser and lens. Remedy Check housing cover of lamp unit for natural fogging or dew as per LI82.10-P-050139. 1. If a reduction in the degree of fogging is visible, the pressure compensation membrane can be inserted after complete evaporation of the dew. 2. If no reduction in the degree of fogging is visible, the lamp unit is defective and mus...