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|3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.|
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| Originally posted by sp0rky@Jul 26 2005, 08:42 PM |
The kits at the stores claim you dont need to change any parts at all - just get your R12 evacuated and vacuumed (free from AC shop because they re-sell R12)
However, I don't see how that is RELIABLY (long term) possible.
Either way - those kits are sold at Wal Mart, Kragen, Target, etc...
Generally, you have the R12 evacuated and vacuumed - then flushed - then replace the reciever dryer and seal it all back up and leak test it. Vacuum again and recharge with R134 and compatible oils. Thats the PROPER way to do things.
Changing of the o-rings, etc is usually not necessary (myth) unless yours are cracked, etc.
Originally Posted by <b>superdeadman</b><br>Josh W. IS my hero! |
Originally Posted by <b>JoeMadoo</b><br>325eXTATIC, you're my hero...
Originally Posted by <b>Moosepuck</b><br>Oh yeah... 325eXTATIC...you're my hero...
Originally Posted by <b>e30dream</b><br>325eXTATIC....youre my hero.
| Originally posted by sp0rky@Jul 27 2005, 12:52 PM |
The cost of R12 is around $400 / lb in my area .. I don't know about yours
so If you buy an R12 compressor because it's cheap , having it refilled will far exceed the cost of the 134a system. You need 4.5lbs of refrigerant.
R134a is roughly 9$ per lb.
I dont know why the cost difference between compressors is so huge, though.
And yes - expansion valves sometimes need replacing if they are sticky - but a proper AC flush should eliminate the need for a new one if it's already in good condition.
| Originally posted by ldsbeaker@Aug 1 2005, 04:03 PM |
So what you're saying is that I go to Autozone, ask for a compressor for '86 BMW 325es, and they will bring me this Bosch reman. unit?
| Originally posted by viali8@Jul 26 2005, 09:29 PM |
Just wondering if anyone has done the r12 to r134a conversion for their ac. is it a do it yourself job or is it very difficult. Do you need to buy a new compressor if you switch to r134a? where is the best place to buy a conversion kit? any help is greatly appreciated. thanks
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