.........you're sure it's not cheap perfume??

make sure you replace the little foam evap hose while your in there. it goes bad and will start to dump water in the car from condensation.

well, you cant be sure just getting it here.

course to us diesel geeks antifreeze on our ladies might turn us on more.

tom w

Just to clarify, the sickly sweet smell that has been mentioned here and often in other posts comes from ethylene glycol, the main ingredient in most of the current antifreeze. This is particularly noticeable when the engine and heater is hot, if there is a leak in the in-cabin heater coil. Would seem to be a better design to have put these coils on the other side of the firewall, but that has not been common since the late 50's early 60's.

That had to be cheap perfume. :D

Its a big job. Having done 2 W123 evaporator core replacements, so I know.
For the heater core leak I would have tried a radiator leak sealant first. But thats just my opinion.
While its out consider the following for replacement.

Evaporator If old and rusting, unless you like dash removals.
All vacuum elements pods.
The temp sensor tube at the top of the dash.
A new evaporator drain tube at the bottom of the evaporator box. I used a hard rubber garbage disposal drain tube.
All new light bulbs in the center console, dash and instrument cluster.
Test your temp sensor in the top center of the dash.
Test your evaporator temp sensor.
Expansion valve.
Shifter bushings in the shifter assembly.
Rebuild the instrument cluster if you want.
Check all rubber 2 and 3 connectors for the vacuum tubes.
Check all hard plastic tubes for cracks.
Check for oil in the ignition shutoff switch.
Check blower motor brushes.


Have fun.

Dave

For this I bet you had battery acid leaking under your rear seat.
 

of course it could be referigerant if you had a 74 and up superbeetle, or mabye someone installed a water coil heater kit from JC Whitney? :eek: :eek: :eek: :D

Hey, in this world, it can be BOTH!!!:D

I have the parts to put it all back together I have just been too busy sailing....

Evaporator If old and rusting, unless you like dash removals.-Its in fine shape, cleaned and reassembled
All vacuum elements pods.-they all work, leaving well enough alone.
The temp sensor tube at the top of the dash.-already replaced
A new evaporator drain tube at the bottom of the evaporator box. I used a hard rubber garbage disposal drain tube.-already replaced.
All new light bulbs in the center console, dash and instrument cluster.-already replaced.
Test your temp sensor in the top center of the dash.-How do you do this?
Test your evaporator temp sensor.-How do you do this?
Expansion valve.-already replaced
Shifter bushings in the shifter assembly.-already replaced
Rebuild the instrument cluster if you want.-ditto
Check all rubber 2 and 3 connectors for the vacuum tubes.-ditto
Check all hard plastic tubes for cracks.-ditto
Check for oil in the ignition shutoff switch.-ditto
Check blower motor brushes.-ditto

Thanks, RT

Temp sensor at the top.

Job 83-640 in the climate control manual

http://mb.braingears.com/123_DISK2/program/Climate/83-640a.pdf

Evaporator temp sensor.

Job 83-645

http://mb.braingears.com/123_DISK2/program/Climate/83-645a.pdf

Dave