Mercedes Benz

2020 Mercedes Benz Truck ML 350 Technical Service Bulletin # LI83-50_P-0473262 Date: 120424 A/C - No Cooling Output/Rear A/C Line Leaking No cooling output/ rear A/C line leaking 2020 Mercedes Benz Truck ML 350 4MATIC (164.186) V6-3.5L (272.967) Page 79 Topic number LI83.50-P-047326 Version 2 Design group 83.50 Rear air conditioning Date 04-24-2012 Validity X164/ model series 251 with rear air conditioning (code 582) production up to and including 01/2010 Reason for change Damage code corrected Complaint: No cooling output/ rear A/C line leaking. Cause: Unfavorable material pairing of rear A/C line and plastic spacers leads to corrosion of the rear A/C line. This is noticeable at points directly under the spacers of the rear A/C line. Affects vehicles built up to and including January 2010. Remedy: 1. Remove and dispose of leaking rear A/C line. 2. Install new rear A/C line. The current rear A/C lines for both model series 251 and X164 feature optimized plastic spacers.

2010 Mercedes Benz Truck GL 350 BLUETEC (164.825) V6-3.0L DSL Turbo (642.820) Vehicle: All Technical Service Bulletins A/C - No Cooling Output/Rear A/C Line Leaking No cooling output/ rear A/C line leaking Topic number LI83.50-P-047326 Version 2 Design group 83.50 Rear air conditioning Date 04-24-2012 Validity X164/ model series 251 with rear air conditioning (code 582) production up to and including 01/2010 Reason for change Damage code corrected Complaint: No cooling output/ rear A/C line leaking. Cause: Unfavorable material pairing of rear A/C line and plastic spacers leads to corrosion of the rear A/C line. This is noticeable at points directly under the spacers of the rear A/C line. Affects vehicles built up to and including January 2010. Remedy: 1. Remove and dispose of leaking rear A/C line. 2. Install new rear A/C line. The current rear A/C lines for both model series 251 and X164 feature optimized plastic spacers. Symptoms Parts Work units