I just did the core job on my 95 E320, had it recharged, and I'm getting about 50-52 degrees F at the vents. I tested my E420 which had the core done a couple years ago and it too is right there at the 50-52 degree F mark. Is that normal? not cold enough? what are you getting with your R134?

50-52 degree vents temps in Hotlanta during the summer...bet that's not too cool.

My MBs R-12 cools down between 38-42 degrees at the vents when working.

My '04 Tacoma is equipped with 134A and it freezes me out.

I'd say your system needs work.

__________________
Mike Murrell
1991 300-SEL - Model 126
M103 - SOHC
"Fräulein"

possible that the fresh air doors are not closing in both cars.

__________________
David S Poole
European Performance
Dallas, TX
4696880422

"Fortune favors the prepared mind"
1987 Mercedes Benz 420SEL
1988 Mercedes Benz 300TE (With new evaporator)
2000 Mercedes Benz C280
http://www.w108.org/gallery/albums/A...1159.thumb.jpg

are testing it at speed? i would say the car needs to be running at 1500-2000 rpms to get a fair reading... at idle in the city...50 probably isnt bad.

__________________
1989 300ce 129k
( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone)

1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus

1994 e320 Cabriolet 108k



1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it


[/SIGPIC]

yeah it was at idle.

everything is new in the 320, new core, new drier, even new cabin filters and blower motor.

I'm going to take a digital thermo with me tomorrow and drive around.

I'm getting a steady 40F at speed and about 50-55F in stop-and-go traffic at 109 F outside today. Other than when I parked my car for a few minutes and restarted it, I have not seen coolant temps above 100C. The CoolHarness works great.

__________________
1993 400E, 256,000 miles (totaled)
1994 E420, 200,000+ miles
1995 E420, 201,000 miles

I use freeze12 and get 40 when the climatic wheel is set at 65 in the drive way. It gets cold enough that the heat cycles.

I get a steady 42 F. with revs at 1500 to 2000 running R-134a. Just put in a new evaporator, expansion valve and dehydrator.

Not bad for a 20 year old car though!

__________________
William
________________________________________
1987 420 SEL - Like a fine wine only better with age

Mine gets around 45 or so. 1987 560SL - 134 system, new drier, schrader valves and a prayer for nothing else!

I get 42 Degrees F in my 560SL and 300D on a 95 degrees F day. This is at a normal driving speed. I have actually been quite satisfied with my 134a conversions on Mercedes. My BMW didn't fare so well!

__________________
All the best,

J. P. Mose
1968 250SL
1970 280SE 3.5 Cabrio
1987 560SL
1990 560SEL