Sunday, April 21, 2019

2020 Mercedes Benz Truck ML 350 Technical Service Bulletin # LI83-50_P-0473262 Date: 120424

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.

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