found a pic from about a month ago of my w123's evap. i cleaned it over a year ago and it's staying clean. the air volume is VERY good with all vents open. before i cleaned it, i always closed the passenger vents in the summer because it was a pathetic amount of air flow. the coil clean has a good smell too :) not a chemical smell, but a new window air conditioner smell :D

Thanks so much, that gives me more encouragement. Just need for it to warm up a bit and I'll give it a go!

Thanks,

Packman

No kidding! Tired of this weather... you'll be blowing your sun visors back when summer comes around:cool:

Evaporator 1984 W123
 

When you pull the blower motor assembly and look at the evaporator is this the side that the air flows through/input. Thanks for any info

Yes

Thanks for the info, my problem is my center vent temp is about 37 degrees on low blower setting and about 58 degrees on high blower setting 94 degree ambient/80% humid. I have replaced the R4 with a sanden compressor and running R12,I suspect it is a dirty evaporator also air velosity out of vents is good but not great.

I noticed from this picture and the 2 others you posted earlier,
that the shots were taken from the same opening or access.
Was this opening big enough to fit a hand into it with a toothbrush
and a foam spray cleaner (no-rinse) to clean the fins?

Any tips you can share in taking down the blower motor?

I have a 300D 1984 USA model to work on and I've been gathering
pointers from Brian Carlton from another forum of a similar subject.

I also want to replace the motor brushes if I can find a good source.
Any tips on this too?

I'll look forward to your answers.

Thanks.

i was able to reach my hand inside with a toothbrush without issue. i tried to hold a can and put it through the opening but i couldn't. so i had to get the evaporator cleaner that has the hose attached to the can. in that case it was easy to reach up inside with the nozzle while pushing the spray button with my other hand. for rinsing i used a small pressure sprayer with a long hose.

there is nothing to taking down the motor. unclip the electrical connector, then there are just a handful of very obvious screws that attach the blower to the housing.

I am in the process now of refurbishing the whole climate control assembly for my car. After taking two of them apart, I can only recommend complete disassembly. Both have been completely full off dirt, dust, and garbage, not to mention that every bit of old foam is rotten.