1993 300D 2.5. After compressor replacement (bad air gap and clutch bearing caused kilma cut off), after evacuation, had small vacuum leak. Filled with R134A and dye. After a few days I have the dye in the water condensation in the driveway.

What causes these dreaded W124 evaporator failures? bad welds? aluminum instead of copper? copper/alum blends?

Anyway, I see there are 3 brands of evaporators available; ACM (all alum-$231), Meistersatz (all alum - $141) and Proliance (all copper- $126). Any opinions on these brands?

I dread the dash removal. Would like to not fix and just keep adding R134A and Pag 46 oil charge as needed.

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1993 Mercedes Benz 300D 2.5 205K (ex wife's)
1984 Mercedes Benz 300SD 320K (SOLD)
2004 Mercedes Benz C240 75K
1995 GMC Sierra 2WD 5.7L 188K
1983 Mercedes Benz 300SD 239K (SOLD)
1987 BMW 325i 220K (SOLD FOR SALVAGE)

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