Evaporator Housing, Removing And Installing: Notes
Evaporators With A 40 Mm Block Depth -A- (A/C Unit With The Part Number "8K_ 820 005") Are Being Installed From Start Of Production Through The Changeover From MY 2012. These Evaporators Can Be Replaced With The A/C Unit Still Installed. Refer to EVAPORATOR, REMOVING AND INSTALLING . From MY 2012, Evaporators With A Block Depth -A- Of Approximately 50 Mm Are Being Installed (A/C Unit With The Part Number "8T_ 820 005") As A Running Change Depending On The Vehicle Version. These Evaporators Can Only Be Replaced When Removing The A/C Unit Together With The Evaporator Housing.
Replace the evaporator and the evaporator housing if the evaporator is not available as a single part, or if for other reasons it must be replaced together with the evaporator housing (it is necessary to remove the A/C unit in order to replace the evaporator).
For refrigerant R1234yf, there must not be any separable connection points in the refrigerant circuit in the vehicle interior (for example, separating points on the refrigerant lines to the evaporator). Therefore the A/C unit (with the evaporator housing) must always be removed on these vehicles and the evaporator with the refrigerant lines must be completely replaced. Refer to the HEATER AND A/C UNIT, REMOVING AND INSTALLING .
There is a label -A- on the outside of the A/C unit with a part number -B- that tells which version is installed.
The part number -B- on the label -A- can be read, for example, when the CD changer is removed (depending on the vehicle equipment level). Refer to appropriate service information. .