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A/C compressor replacement?

Tiny
ISMAEL IBARRA
  • MEMBER
  • 2005 MERCEDES BENZ C230
  • 126,000 MILES
I have watched the video over an over to see if you guys removed the third bolt on the back of the compressor and did not see one removed. Would I be able to reach it from under the car or what is the best way to get to it? Would I have to put it back or can I leave it off?
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Saturday, July 29th, 2017 AT 2:38 AM

15 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Hello,

That bolt is reached by a long extension from the side where the wheel well is. Yes you should reinstall the bolt as well.

It was a fun job that is for sure.

https://youtu.be/_pBoAA87gHI

Please let us know if you need anything else to get the problem fixed.

Cheers, Ken
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Saturday, July 29th, 2017 AT 2:01 PM
Tiny
EDWARDCRESPO
  • MEMBER
  • 1 POST
  • 2005 MERCEDES BENZ C230
Compressor oil can be applied to it?
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Saturday, December 19th, 2020 AT 10:02 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Refrigerant Oil - Check out the diagram below.

Type PAG

Capacity

Refrigerant compressor filling quantity 120 cc
Additional oil filling capacity

when system suddenly looses charge 40 cc

when replacing condenser 20 cc

when replacing evaporator 40 cc

when replacing suction line 20 cc

when replacing pressure line 20 cc

when replacing refrigerant compressor 20 cc

in case of detectable leakage 20 cc

when replacing drier cartridge 20 cc

Refrigerant Oil

Type PAG / Part No. 001 989 0803 Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
Image (Click to make bigger)
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Saturday, December 19th, 2020 AT 10:02 AM (Merged)
Tiny
EZIO COVELLI
  • MEMBER
  • 1 POST
  • 2004 MERCEDES BENZ C230
  • 1.8L
  • 4 CYL
  • TURBO
  • RWD
  • AUTOMATIC
  • 180,000 MILES
Hi everyone, i will be doing an AC compressor job in a couple of days and i need to know how much compressor oil i need to add to the new compressor and how much refrigerant does my car take after a full vacuum?
I cannot find consistent information on the web so i thought i would check with you.

I have the car listed above C230K 1.8L Supercharged.
this is the new compressor i bought:
http://www.buyautoparts.com/buynow.asp?partnumber=60-01801_NA

Thanks in advance.
Ezio
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Saturday, December 19th, 2020 AT 10:02 AM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Hey EZIO,

Yes that is the compressor, I just did one of these in my wife's car, here is the video, the compressor will come with oil in it but you can add 1/2 once to feel safe.

Here is the video

https://youtu.be/_pBoAA87gHI

and guide on how to vacuum it down and recharge it

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system

Please let us know what you find so it will help others.

Best, Ken

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Saturday, December 19th, 2020 AT 10:02 AM (Merged)
Tiny
SFEVANS
  • MEMBER
  • 1 POST
  • 2003 MERCEDES BENZ C230
  • 1.8L
  • 4 CYL
  • TURBO
  • 2WD
  • AUTOMATIC
  • 250,000 MILES
I am replacing the AC compressor, do you have a video of that job? I watched the intake manifold replacement, and received a lot of information on part of the work. Video would be nice if you made one. Sam
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Saturday, December 19th, 2020 AT 10:03 AM (Merged)
Tiny
D6SPAN
  • MECHANIC
  • 58 POSTS
Hi. Yes we do! And it just so happens to be for the same year, make, and model as your car! Best of luck to you!

https://youtu.be/_pBoAA87gHI

Please let us know if you need anything else to get the problem fixed.
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Saturday, December 19th, 2020 AT 10:03 AM (Merged)
Tiny
SAM LABIB
  • MEMBER
  • 2 POSTS
  • 2000 MERCEDES BENZ C230
  • 150,300 MILES
I am going to change my AC compressor and I am wondering how to release the pressure of the lines? And is it dangerous to do with out releasing the pressure?
Consider I am doing it at home I do have tools but no machine.
Thanks in advance.
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Saturday, December 19th, 2020 AT 10:03 AM (Merged)
Tiny
STEVE W.
  • MECHANIC
  • 13,577 POSTS
Is it dangerous to release 134A? Not really as long as you keep from letting it spray on you or breathing it. But it is illegal for a shop to do that, we have to use a machine.
I would ask a local shop if they would recover and recharge it when you are finished. That way you would also know if you have a leak as they will vacuum it prior to recharge. It will cost a bit but you will not need to guess on the recharge.

What was the issue with the old compressor? If it failed internally you might want a shop to do the entire job as compressor failure can mean that other components also need to be replaced to prevent the new compressor from being damaged, or the system from functioning correctly.
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Saturday, December 19th, 2020 AT 10:03 AM (Merged)
Tiny
SAM LABIB
  • MEMBER
  • 2 POSTS
Thanks so much Steve for you help.
Actually after some digging I find out is my compressor is good it is electric issue because I powered the compressor with a jump box and it did work. But the problem now is I cannot find the compressor relay or fuse and I have been looking for it I cannot find it to test it or change it.
Do you have any idea which one is it or where? Or any diagram. Thanks a lot
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Saturday, December 19th, 2020 AT 10:03 AM (Merged)
Tiny
STEVE W.
  • MECHANIC
  • 13,577 POSTS
Neither exist on that car. Power for the compressor comes through the A/C control module itself.
Check fuses 20, 29, 30 and 38. They power the HVAC system. Check it with a gauge set to be sure it has a charge of refrigerant in it. After those you pretty much need the OEM style scan tool to be able to test the system because of the way it is designed.
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Saturday, December 19th, 2020 AT 10:03 AM (Merged)
Tiny
ALVAROTOBON
  • MEMBER
  • 2 POSTS
  • 1998 MERCEDES BENZ C230
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 85,000 MILES
My problem is the clutch, not engaged, the pressure of the refrigerant is ok, the fuse is ok, .I changed the evaporator sensor temp. If I connect a wire direct form the battery to the clutch it engaged.
When I read the PBV errors only appears the No. 1 84 F. What more I need to check?
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Saturday, December 19th, 2020 AT 10:03 AM (Merged)
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Hi
A/C system Automatic? If yes turn ignition on set Temp to LO, within 20 sec. Simultaneously depress REST and windshield defrost buttons for 5 sec. LED in recirculated air button will flash and display will read "di A". Press AUTO button repedatly until all DTCs are displayed. Press right AUTO to display each DTC. After last DCT "END" will display. Then post will advise.
Thanks for donate
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Saturday, December 19th, 2020 AT 10:03 AM (Merged)
Tiny
ALVAROTOBON
  • MEMBER
  • 2 POSTS
I did everything you told me to do and appears "24 l" and then END. What should I do next?
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+4
Saturday, December 19th, 2020 AT 10:03 AM (Merged)
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Need to hook up gague set and check ststic charge should be @90 psi. If good maybe failed low pressure sensor
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Saturday, December 19th, 2020 AT 10:03 AM (Merged)

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