E46 a/c issues - Dorkiphus.net

BMW Technical Discussions BMW related technical discussions and questions go here.

Reply
 
Thread Tools Display Modes
  #1  
Old 05-17-2018, 08:32 PM
VaSteve's Avatar
VaSteve VaSteve is offline
Essential Personnel
 
Join Date: Oct 2003
Location: Western Prince William County
Posts: 13,681
VaSteve has one HoF thread
Default E46 a/c issues

So the a/c is out on my 2004 325. I'm thinking the compressor is dead as it makes a bad noise when it's on (see video). I had seen oil (freon) on the floor of the garage for some time.

I'm debating whether putting some freon in it is worth it or a waste of money as a test. Can you tell from the sound if the compressor is dead or malfunctioning.

https://youtu.be/AspyXr0jaX8
Reply With Quote
  #2  
Old 05-17-2018, 08:37 PM
cmartin cmartin is offline
 
Join Date: Sep 2003
Location: Pasadena, MD
Posts: 6,921
cmartin
Default

Try another video from the engine compartment. Or better yet, pop off the belt and spin (or try) the compressor by hand.
__________________
78 SC, the 'Red Car'
Reply With Quote
  #3  
Old 05-17-2018, 09:50 PM
VaSteve's Avatar
VaSteve VaSteve is offline
Essential Personnel
 
Join Date: Oct 2003
Location: Western Prince William County
Posts: 13,681
VaSteve has one HoF thread
Default

Quote:
Originally Posted by cmartin View Post
Try another video from the engine compartment. Or better yet, pop off the belt and spin (or try) the compressor by hand.
Will do this weekend.
__________________
1983 911 SC Targa - 1990 944 S2 - Past: 1986 944 n/a - "Doublemint"
"Every one drives to DE but few fly to flight school." - Vicegrip
"Sometimes arguing/reasoning w/Steve is like looking at a compass while having a 2lb magnet in your pocket." - }{arlequin
Reply With Quote
  #4  
Old 05-17-2018, 11:55 PM
HughA44s HughA44s is offline
 
Join Date: Aug 2014
Location: Woodbridge, VA
Posts: 583
HughA44s has one HoF thread
Default

Steve - Been there and done that a few years ago. Mine made noise and seen to start seizing intermittently - until it finally seized for good. This became obvious when the smoke started coming out of the hood. Replaced the compressor and the accumulator and of course the refrigerant - actually had a shop do it. The majority of the cost is parts and charging and in-charging the system. The labor was not bad because it is all right there.
Reply With Quote
  #5  
Old 05-17-2018, 11:56 PM
HughA44s HughA44s is offline
 
Join Date: Aug 2014
Location: Woodbridge, VA
Posts: 583
HughA44s has one HoF thread
Default

Listen to your video - you already know the answer.
Reply With Quote
  #6  
Old 05-18-2018, 10:34 AM
Jazzbass's Avatar
Jazzbass Jazzbass is offline
Site Admin
 
Join Date: Feb 2003
Location: Germantown, MD
Posts: 11,660
Jazzbass has eight HoF threadsJazzbass has eight HoF threadsJazzbass has eight HoF threadsJazzbass has eight HoF threadsJazzbass has eight HoF threadsJazzbass has eight HoF threadsJazzbass has eight HoF threads
Default

Sounds like you need a new compressor. Changing the compressor ($220) means changing the accumulator/dryer ($40) as well, and then recharging with two cans of R134a ($15).

Not sure if it fits your E46, but the best deal I found was this compressor from Amazon: https://www.amazon.com/Denso-471-1119-A-C-Compressor/dp/B004SG5566/ref=sr_1_1?s=automotive&ie=UTF8&qid=1526654034&sr= 1-1.
__________________
Chris M
1985 911 Carrera with a couple cosmetic only mods
2006 E90 330i
1999 E46 328i
Reply With Quote
  #7  
Old 07-20-2018, 07:47 AM
VaSteve's Avatar
VaSteve VaSteve is offline
Essential Personnel
 
Join Date: Oct 2003
Location: Western Prince William County
Posts: 13,681
VaSteve has one HoF thread
Default

This actually isn't such a bad job. Took about 3 hours last night. Hardest part was pulling off the sway bar (awd model) and then chasing the threads in the dryer which I munged up a bit. Now, off to recharge it.

Bentley is a huge help but I hate how theres one step....Remove X see section 310. And there's 5 more steps in section 310.

Who knew I'd need to pull out the headlight?
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump