Air conditioning systems designed for refrigerant R12 are
only to be filled with refrigerant R134a if certain requirements
are fulfilled. Refer to
→ Chapter "Refrigerant Circuit, Convertin
General Information
Vehicles with a high-voltage system (hybrid vehicles)
Extremely Dangerous Due to High-Voltage
The high-voltage system is under high-voltage. Death or serious
bodily injury by elec
Work procedure may vary depending on the type of tools
selected (the tool-specific operating instructions should
therefore be followed).
The refrigerant circuit is to be discharged if parts of th
Capacities
Refrigerant R134a and refrigerant oil. Refer to
→Fluid Capacity Tables; Rep. Gr.03.
Note
Pay attention to the different capacities for refrigerant
R134a in vehicles without a rear heater and A/C unit (with an
evaporator) and in vehicles with a rear heater and A/C unit
(w
Caution
This procedure contains mandatory replaceable parts.
Refer to component overview prior to starting procedure.
Mandatory Replacement Parts
O-ring - Front Expansion Valve to Refrigerant Line - High
Pressure Side
Caution
Danger due to refrigerant coming out under pressure