After an a/c line burst, here is my previous post for reference http://www.benzworld.org/forums/w124-e-ce-d-td-class/2841162-95-e320-high-pressure-c-hos.html I was finally able to get the right part, now how would I go about replacing this? here is a picture of the whole part Imgur: The most awesome images on the Internet The top right cylinder is a fuel cooler. so in order to do this I should just relieve the fuel pressure replace the part and then vacuum and ad the refrigerant? should I use teflon tape on any of the threads? Is it necessary to replace the receiver drier as well?If so Where is it located?
1995 E320 A/C manifold replacement.
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Never, ever use teflon tape on A/C system, but DO replace the o-rings made for R134a refrigerant. Teflon tape belongs underneath the kitchen sink, not on a car.
Always replace the receiver/dryer along with the pressure switches, without exception whenever the A/C system is opened. It is located in plain sight behind the driver side headlight.
Highly recommend you also replace the expansion valve.
And if you are not familiar with A/C systems, do not do this job yourself.
Always replace the receiver/dryer along with the pressure switches, without exception whenever the A/C system is opened. It is located in plain sight behind the driver side headlight.
Highly recommend you also replace the expansion valve.
And if you are not familiar with A/C systems, do not do this job yourself.
You would need to replace the drier which the black bottle looking part near the driver side headlight.
No teflon tapes just new O rings. You'd then need to pull a vacuum that should hold for at least half an hour.
I'd suggest having a pro refill it with PAG oil and refrigerant as the quantity needs to be precise.
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No teflon tapes just new O rings. You'd then need to pull a vacuum that should hold for at least half an hour.
I'd suggest having a pro refill it with PAG oil and refrigerant as the quantity needs to be precise.
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I replaced the receiver drier and the manifold and replaced the o-rings but I did not replace the pressure switches, why is it important for those as well?
I am having a shop vacuum and refill the system.
Because that is the best time to get at them when there is no pressure in the system, besides the fact that the original switches are pushing a 1/4 century.
If a switch goes bad in a few months, you are looking at another receiver dryer, vacuum down, replace, test, refill, etc.
Ah yeah that makes sense, if I had the money and time to wait on parts I would do that now... what parts are those? are they the ones attached to the dryer? Or are they located somewhere else? Even replacing those in the future and having the system open for an hour would really need a new dryer? What does the dryer do, just take moisture out of the system as the refrigerant condenses and expands?
The dryer removes and absorbs any moisture and contaminants from the A/C circuit to prevent corrossion, oxidation, etc.
Even just 1 hour is enough to render the dryer almost ineffective.
Yes, the pressure switches are located on top of the dryer.
Do it once, and do it right. Replace the switches before refilling. Ditto on the expansion valve.
Even just 1 hour is enough to render the dryer almost ineffective.
Yes, the pressure switches are located on top of the dryer.
Do it once, and do it right. Replace the switches before refilling. Ditto on the expansion valve.
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