Disassemble the Breathing System Repair and Disassembly
6 - 52 046-001141-00 A5/A3™ Service Manual
If it is necessary to replace or re-install the Pre-pak absorber sealing cushion (049-000143-00), set the 
internal groove of the Pre-pak absorber sealing cushion in the side flange of the Pre-pak absorber, as 
shown below..
FIGURE 6-99
Make sure that the sealing cushion is correctly installed. The comparison between correct installation 
and incorrect installation is shown below..
FIGURE 6-100
6.3.6 Remove the CO2 Bypass Assembly
1. Remove the absorbent canister as per section 6.3.5.
2. Press inward the fasteners on both sides and the CO2 bypass assembly will drop down for 
removal.