|
|
|
|
|
#1
10-03-2001, 03:19 PM
|
|||
|
|||
Early vs. late W124 A/C condensers
Can anyone confirm that the R12 condensers in the older W124's are not as big/dense as the R134a condenser of the later model W124's?
For the 6-cylinder W124's, can I easily switch out the older R12 condenser with the newer R134a, or are there fitment and plumbing issues? Can I keep my single A/C fan, or do I have to go to dual-fans? Thanks, :-) neil 1988 360TE AMG 1993 500E 
|
|
#2
10-03-2001, 03:28 PM
|
||||
|
||||
|
I am not an A/C expert by ANY means, but I do know that an R12 to R134a conversion involves much more than a compressor swap.
The refrigerant molecules of R134a are smaller, and therefore would leak though R12 seals, connectors, and plumbing. So those would have to be replaced for starters...
__________________
2009 ML350 (106K) - Family vehicle 2001 CLK430 Cabriolet (80K) - Wife's car 2005 BMW 645CI (138K) - My daily driver 2016 Mustang (32K) - Daughter's car
|
|
#3
10-03-2001, 03:36 PM
|
|||
|
|||
|
My system has already been converted, but it just doesn't cool-down as quickly as our 1993 500E.
There are no leaks, and it has an 80% capacity charge of R134a. I'm thinking it's because of the A/C condenser and/or not having dual-fans up front. Looking for any help. Thanks, :-) neil
|
|
#4
10-03-2001, 03:42 PM
|
||||
|
||||
|
Oops, you were referring to CONDENSERS, not COMPRESSORS, as I erroneously pointed out.
From the A/C posts I've read, those who have done the conversion say that R134a doesn't cool as well as R12. Again since I'm not an expert, I don't know if there is a way to "hot rod" the A/C...
__________________
2009 ML350 (106K) - Family vehicle 2001 CLK430 Cabriolet (80K) - Wife's car 2005 BMW 645CI (138K) - My daily driver 2016 Mustang (32K) - Daughter's car
|
|
#5
10-03-2001, 04:24 PM
|
||||
|
||||
|
The following thread may be of help. At any rate, Benzmac has an interesting comment about the expansion valve.
condensor inefficient
__________________
Mike Murrell 1991 300-SEL - Model 126 M103 - SOHC "Fräulein"
|
|
#6
10-03-2001, 07:09 PM
|
|||
|
|||
|
I went thru this process a few months ago. At some point, MB put larger compressors and 2 cooling fans on the 124... Those cars, apparently, take the 134 changeover better. We did ours this summer, and it's not bad. Consider that we live in South Texas - "not bad" is pretty good, most places.
__________________
Bill Streep San Antonio '57 190SL (toy) '08 S5500 (mine) '09 CLK550 (wife's) '06 SLK350 (daughter's) '11 GLK350 (daughter's) '03 CLK310 (spare)
|
|
#7
10-03-2001, 11:27 PM
|
|||
|
|||
|
Bill- are you saying that you put in a bigger compressor and condenser, and even went to dual A/C fans?
If so, was the conversion a bolt-on deal, or lot's of "gotchas"? If not, what parts did you replace, and did you factory MB parts, or aftermarket (like condenser)? Thanks, :-) neil
|
 |
| Bookmarks |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| W124 A/C after a few hours driving | Q-Ball | Tech Help | 25 | 07-11-2004 03:42 PM |
| How easy is it to re-charge A/C on W124 | msheehan1 | Tech Help | 11 | 06-18-2004 10:16 PM |
| Want size bolts hold on the w124 a/c compressor | The Bob | Diesel Discussion | 3 | 04-26-2004 09:54 PM |
| W124 A/C System Oil Fill Quantity | jgl1 | Tech Help | 3 | 03-30-2004 05:52 PM |
| WTB: A/C Condenser for late W123 | ncarter | Mercedes-Benz Used Parts For Sale & Wanted | 0 | 11-12-2001 05:11 PM |
Linear Mode
