Air Conditioner Freon Options...(m)

[Robbie]

Hello All,

When I purchased my 535iS 5 years ago a new receiver dryer
was installed. The coolant or Freon is 134A, it does get cold,
the thermometer I have in the center vent records 41 degrees. I
think thats cold, but here in Southern California it has not reached
the high 80's that we regularly see.

What coolant / freon are you using.
R12, R22, 134A, R502, or ARI-700 ?
Are you happy with the performance
your getting with the coolant / freon ?
and what temperature are you getting in the car ?

TIA
Robbie



[Edit by Robbie on [TIME]1113466386[/TIME]]

[Steve Haygood]

R12 ,getting 36 degrees on a 90 degree day on humid day in central Ga at normal speeds. Humidity and outside temp and cooling fan speed and or car speed will have a bearing on outlet temp.
BTW,41 is good for r134. Some e28 cars have bigger condensors than others and will thus cooler better,esp when r134 is used

[Madhungarian]

My euro was converted to r134 and went back to r12. Made a big difference in the Texsas sun!
Yes the condenser is bigger than on other models, but still not efficient enoughf for r134 requirements. IMHO
I know 3X the price !@#$

[Rich in Tupelo]

one option would be fridge C (think that is the name). It is a hybrid between r12 and r134 and will work in a r12 system without changing anything. I had my 83 Turbo ZX converted to it and it worked really well. Also much cheaper than r12. Just food for thought.

Rich

[MarkD in NJ]

I converted my E28 to R134 a couple years ago - just replaced the receiver/dryer and screwed on the adapter fittings. I see low 40F temps at the center vents on a 90+ degree day as long as the car is moving.

Converted an E30 also at about the same time and see mid-40F temps. No problem with either conversion.

Also had an E23 for a few months one summer - it had been converted to 134 and had a full charge. Never really go cold, even at highway speeds.

[I'm the DRIVER]

sorry to jump in...but what do you guys think about "freeze 12"? my friends neighbor who's a mechanic told me that i can substitute that since there are no longer shops in my area (as far as i know) that has r12.
my '87 535is isnt converted yet. the compressor engages and the aux fan turns on but no cold air.
tia!
wil

[Azure]

I had my former E28 converted from R12 to R134, I never had any issues with it being cold - the R134 felt just as cold as the R12 in the dead of the 100 Florida summer, as far as I was concerned - and that was with a nice sticky dark blue (dried out) leather interior, too.

My new E28 is R134 already, while I haven't seen a really hot summer yet, it seems plenty cold enough the couple of times I've run it on warm days so far - although I will say, the tan interior seems to keep notably cooler so far in general than the blue interior did.