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      05-12-2026, 04:33 PM   #3
Fishee
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Drives: 135i MSport, GLK350
Join Date: Jan 2022
Location: Toronto

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Quote:
Originally Posted by rick_flying_machine View Post
How did you confirm the evaporator was leaking ?

I'm trying to isolate the source and having issues. Saw a small leak at the compressor I believe(dye), but my windshield has a small film after a while and I suspect the evaporator as well.

Did you also replace your condenser since your system was probably empty for a while? Thanks!
Confirming dead evap:
- slow decline in performance
- warmer air on one side vs. the other despite the same temp settings on both sides
- slight hiss sound from HVAC box area when AC running
- slight refrigerant smell in cabin when AC running
- confirmed, not holding vacuum using gauge set

- Oily film on inside of windshield, good indicator of bad evap (PAG oil in system misting out of micro cracks)

Did not replace the condenser. System wasn't fully empty, nor for that long.

Hope this helps!
Appreciate 0