2013 Mercedes Benz C 63 AMG Coupe Technical Service Bulletin # S-83_30-136 Date: 120815

A/C - A/C Sealant
Date: August 15, 2012
Order No: S-B-83.30/136
Group: 83
SUBJECT: MY-All, Models All
A/C Sealant
If refrigerant circuit becomes leaky while under warranty, do not apply sealant. This can lead to contamination of the air conditioning service unit
and damage the vehicles refrigerant circuit.
The damaged part must always be determined using the usual inspection procedures and replaced by a genuine Mercedes-Benz new part.
Returned components that have been contaminated, damaged or clogged by sealant will not be covered under warranty.
NOTE:
If sealant is in the refrigerant circuit of the air conditioning system, this cannot be determined before the refrigerant is extracted. To determine if
sealant has been used in previous repairs, look for an adhesive label affixed to the engine compartment of the vehicle Protective devices for air
conditioning service units are offered by some manufacturers. They must be requested from the manufacturer of the air conditioning service unit.