Working on R-1234yf systems is not that different from the R-134a variety.
The characteristics that make the parallel-flow condenser so efficient are among its major drawbacks as well.
Toyota vehicles may exhibit odors naturally occurring from the HVAC system and/or related environmental factors.
HVAC systems often fail because the air conditioning compressor fails. Not following the proper service procedures or compressor oil recommendations could be factors that contribute to premature compressor failure.