Convert to R134 on 1995 C280 - Page 2 - PeachParts Mercedes-Benz Forum

soulie12000 · #16 07-05-2008, 06:08 AM

just to add to it 134 is also put in by weight not pressure , and I pump it in using a gas pump , and electronic scale on the machine , each system has specific weights , also the compressor must be flushed clean of r12 oil and refilled with 134 airless oil some compressors can be drained easily others must be removed to be drained.Its a big labour intensive job

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japmaxse · #17 07-05-2008, 03:02 PM

Quote:

Originally Posted by mpolli

On my car the other fitting is just behind the grille on the drivers side by the side of the radiator. Open the hood, look at the front of the radiator (where the bugs are) and look at the drivers side of it. See if there is a black cap peeking out. I don't know if that's high or low but the other fitting is behind the compressor. Don't know if it's the same for '95.

Yep You are exactly correct. Me and a mechanic were looking for about 10min then finally found it. What a weird place, I would have never guessed that location.

The shop couldn't do the recharge because of some other problem with my coolant level, shop policy.
Anyways I fixed the problem with the coolant at home and decided to go ahead and recharge it. Now that I've located the low side yet again the fitting is to big.

Whats the deal? If this is truly a R134 AC car why doesn't the R134 recharge kit fit.

This is crazy, now I have to go back to the shop and let him figure it out.
I would love to know why Mercedes decided to make their fittings a different size other than the common R134 size.

whunter · #18 07-05-2008, 05:02 PM

Quote:

Originally Posted by japmaxse

Yep You are exactly correct. Me and a mechanic were looking for about 10 min then finally found it. What a weird place, I would have never guessed that location.

The shop couldn't do the recharge because of some other problem with my coolant level, shop policy.
Anyways I fixed the problem with the coolant at home and decided to go ahead and recharge it. Now that I've located the low side yet again the fitting is to big.

Whats the deal? If this is truly a R134 AC car why doesn't the R134 recharge kit fit.

This is crazy, now I have to go back to the shop and let him figure it out.
I would love to know why Mercedes decided to make their fittings a different size other than the common R134 size.

The vehicle fittings are the correct size.

A common issue is with the recharge kits that are disposable = they get sloppy with their production tolerance = couplings fail to fit, or work only with great difficulty.

Question:
WHY do you think it has a low charge?

Have a great day.

whunter · #19 07-05-2008, 05:12 PM

This compressor is known for speed sensor related issues.
Both mechanical and electrical issues are common.

Compressor MB# 000 230 13 11

Call Phil for parts at
1-888-333-4642
Mon-Fri 9:00a-6:00p ET

Arthur Dalton · #20 07-05-2008, 05:13 PM

You have not found the low side, you have found the high side.

Go back to July 1 post of mine ..it is right on that hose.................

japmaxse · #21 07-05-2008, 05:33 PM

Ok here is a picture of the two that I found.

The first shot is the one in the front next to the drivers side headlight.

The second one is right behind the actual compresor. I've yet to see any other fitting.

For the 134.

So I guess there's another one in there somewhere.

I can't beleive it, this is quite silly I should have found it by now.